https://cantonlock.com/ Door hardware specification guides and factory news from Canton Hyland, Guangdong. en https://cantonlock.com/guides/custom-door-hardware-tooling-2026/ https://cantonlock.com/guides/custom-door-hardware-tooling-2026/ Fri, 25 Sep 2026 00:00:00 GMT What can change on a door hardware part, what needs a new mould, how long our 311 took to tool, minimum orders, samples and who owns the dimensions. tec@cantonlock.com (Johnson Liu) https://cantonlock.com/guides/copper-or-brass-hinges-2026/ https://cantonlock.com/guides/copper-or-brass-hinges-2026/ Thu, 24 Sep 2026 00:00:00 GMT A copper door hinge usually means brass: copper alloyed with zinc. Antique copper is a finish. Which of our hinges are brass and how to order them. tec@cantonlock.com (Johnson Liu) https://cantonlock.com/news/brazil-nbr-11742-nbr-11785-fire-door-hardware/ https://cantonlock.com/news/brazil-nbr-11742-nbr-11785-fire-door-hardware/ Thu, 24 Sep 2026 00:00:00 GMT What Brazil's fire door and push bar standards ask of the hardware, class F bars, 50% bar width, selectors on pairs, and what AVCB inspectors fail. tec@cantonlock.com (Johnson Liu) https://cantonlock.com/news/double-fire-exit-door-hardware-set/ https://cantonlock.com/news/double-fire-exit-door-hardware-set/ Thu, 24 Sep 2026 00:00:00 GMT The six hardware lines on a double fire exit door, from panic bars and outside trim to closers and the coordinator, sized from the same leaf data. tec@cantonlock.com (Johnson Liu) https://cantonlock.com/guides/cylindrical-and-tubular-lock-comparison-2026/ https://cantonlock.com/guides/cylindrical-and-tubular-lock-comparison-2026/ Wed, 23 Sep 2026 00:00:00 GMT Tubular, light- and heavy-duty cylindrical and commercial bored locks side by side: backset 60 to 90mm, doors 35 to 50mm, and every function. tec@cantonlock.com (Johnson Liu) https://cantonlock.com/guides/exit-device-comparison-2026/ https://cantonlock.com/guides/exit-device-comparison-2026/ Wed, 23 Sep 2026 00:00:00 GMT Every panic exit device side by side: bar lengths from 650 to 1110mm, single doors, pairs with top and bottom latching, alarm and cold room. tec@cantonlock.com (Johnson Liu) https://cantonlock.com/guides/mortise-lock-case-comparison-2026/ https://cantonlock.com/guides/mortise-lock-case-comparison-2026/ Tue, 22 Sep 2026 00:00:00 GMT Every mortise lock case we publish with backset and center distance, in two tables: narrow-stile 20–35mm and standard 40–90mm backsets. tec@cantonlock.com (Johnson Liu) https://cantonlock.com/guides/backset-door-thickness-chart-2026/ https://cantonlock.com/guides/backset-door-thickness-chart-2026/ Mon, 21 Sep 2026 00:00:00 GMT Backset and door thickness ranges across 589 published door hardware models, counted from the catalog: 60/70mm adjustable, 60mm, 50mm, 45mm, 30mm, with imperial equivalents and the measuring method. tec@cantonlock.com (Johnson Liu) https://cantonlock.com/guides/brass-alloys-and-dezincification-2026/ https://cantonlock.com/guides/brass-alloys-and-dezincification-2026/ Mon, 21 Sep 2026 00:00:00 GMT Which brass alloys door hardware uses, why lead is added, what dezincification is and when DZR brass is required, brass versus bronze, and what to specify. tec@cantonlock.com (Johnson Liu) https://cantonlock.com/guides/certification-and-test-validation-2026/ https://cantonlock.com/guides/certification-and-test-validation-2026/ Mon, 21 Sep 2026 00:00:00 GMT How to check a door hardware test certificate: the seven parts it must carry, accreditation versus certification, Declarations of Performance and CE marking, and six red flags. tec@cantonlock.com (Johnson Liu) https://cantonlock.com/guides/chrome-finish-differences-2026/ https://cantonlock.com/guides/chrome-finish-differences-2026/ Mon, 21 Sep 2026 00:00:00 GMT Why chrome plating is really a nickel stack, how polished chrome, satin chrome and satin nickel differ, the US and BHMA codes, and why the same code varies between suppliers. tec@cantonlock.com (Johnson Liu) https://cantonlock.com/guides/commercial-lock-function-decision-2026/ https://cantonlock.com/guides/commercial-lock-function-decision-2026/ Mon, 21 Sep 2026 00:00:00 GMT How to choose a commercial lock function by room type, the two questions that settle every opening, and the three function errors that become life-safety problems. tec@cantonlock.com (Johnson Liu) https://cantonlock.com/guides/container-loading-door-hardware-2026/ https://cantonlock.com/guides/container-loading-door-hardware-2026/ Mon, 21 Sep 2026 00:00:00 GMT How much door hardware fits a 20GP, 40GP or 40HQ container: carton densities from a real shipping worksheet, the payload limit that binds first, and why the high cube does not help. tec@cantonlock.com (Johnson Liu) https://cantonlock.com/guides/corrosion-resistance-en-1670-2026/ https://cantonlock.com/guides/corrosion-resistance-en-1670-2026/ Mon, 21 Sep 2026 00:00:00 GMT EN 1670 corrosion grades 0 to 5 with their neutral salt spray hours, how ASTM B117 and ANSI/BHMA A156.18 compare, and which environments defeat a grade chosen by habit. tec@cantonlock.com (Johnson Liu) https://cantonlock.com/guides/cycle-testing-durability-grades-2026/ https://cantonlock.com/guides/cycle-testing-durability-grades-2026/ Mon, 21 Sep 2026 00:00:00 GMT What 200,000 cycles means: EN 1906 durability categories against ANSI/BHMA A156.2 and A156.13 grades, what a cycle test measures, and where our published figure sits on each scale. tec@cantonlock.com (Johnson Liu) https://cantonlock.com/guides/dimensional-interchangeability-2026/ https://cantonlock.com/guides/dimensional-interchangeability-2026/ Mon, 21 Sep 2026 00:00:00 GMT Which dimensions must match for a lock to be a drop-in replacement, why backset alone is not enough, and what to send a factory to get a true interchangeable part. tec@cantonlock.com (Johnson Liu) https://cantonlock.com/guides/door-closer-mounting-positions-2026/ https://cantonlock.com/guides/door-closer-mounting-positions-2026/ Mon, 21 Sep 2026 00:00:00 GMT Door closer mounting positions compared: regular arm, top jamb, parallel arm and slide track, with efficiency, projection, vulnerability and the effect on power size. tec@cantonlock.com (Johnson Liu) https://cantonlock.com/guides/door-closer-power-size-2026/ https://cantonlock.com/guides/door-closer-power-size-2026/ Mon, 21 Sep 2026 00:00:00 GMT EN 1154 door closer power sizes 1 to 7 with the leaf widths and masses each covers, how ANSI/BHMA A156.4 differs, adjustable versus fixed size, and the accessibility opening-force limit. tec@cantonlock.com (Johnson Liu) https://cantonlock.com/guides/door-hardware-hs-codes-2026/ https://cantonlock.com/guides/door-hardware-hs-codes-2026/ Mon, 21 Sep 2026 00:00:00 GMT HS headings 8301 and 8302 for locks, keys, hinges, closers and door fittings, subheading by subheading, plus where the six-digit international code ends and national tariff codes begin. tec@cantonlock.com (Johnson Liu) https://cantonlock.com/guides/door-preparation-161-and-86-2026/ https://cantonlock.com/guides/door-preparation-161-and-86-2026/ Mon, 21 Sep 2026 00:00:00 GMT Standard door preparations for bored and mortise locks: the 2-1/8 inch cross bore, the 1 inch edge bore, the 1-1/8 by 8 inch mortise pocket, and what a purchase order must state. tec@cantonlock.com (Johnson Liu) https://cantonlock.com/guides/door-thickness-to-cylinder-length-2026/ https://cantonlock.com/guides/door-thickness-to-cylinder-length-2026/ Mon, 21 Sep 2026 00:00:00 GMT How to calculate euro cylinder length from door thickness, a worked lookup table against nine published lengths, and why thin doors still get a protruding cylinder. tec@cantonlock.com (Johnson Liu) https://cantonlock.com/guides/en-1125-vs-en-179-2026/ https://cantonlock.com/guides/en-1125-vs-en-179-2026/ Mon, 21 Sep 2026 00:00:00 GMT How to choose between EN 1125 panic exit devices and EN 179 emergency exit devices, the occupancy test that decides it, the classification digits, and three compliance mistakes. tec@cantonlock.com (Johnson Liu) https://cantonlock.com/guides/en-ansi-bhma-cross-reference-2026/ https://cantonlock.com/guides/en-ansi-bhma-cross-reference-2026/ Mon, 21 Sep 2026 00:00:00 GMT Scope map between EN and ANSI/BHMA door hardware standards: EN 1125, EN 179, EN 1154, EN 1906, EN 1935, EN 1303, EN 12209 against A156.1 to A156.18, and the four places the mapping breaks. tec@cantonlock.com (Johnson Liu) https://cantonlock.com/guides/euro-cylinder-size-chart-2026/ https://cantonlock.com/guides/euro-cylinder-size-chart-2026/ Mon, 21 Sep 2026 00:00:00 GMT Full euro cylinder size chart: nine overall lengths from 45mm to 90mm, the split combinations that sum to each, EN 1303 and DIN 18252 measuring geometry, and the protrusion rule. tec@cantonlock.com (Johnson Liu) https://cantonlock.com/guides/exit-device-outside-trim-functions-2026/ https://cantonlock.com/guides/exit-device-outside-trim-functions-2026/ Mon, 21 Sep 2026 00:00:00 GMT Exit device outside trim functions compared: exit only, night latch, entrance, storeroom and electrified, plus dogging and the fire door rule. tec@cantonlock.com (Johnson Liu) https://cantonlock.com/guides/finish-code-reference-2026/ https://cantonlock.com/guides/finish-code-reference-2026/ Mon, 21 Sep 2026 00:00:00 GMT Door hardware finish codes: the 23 codes in our catalog, BHMA 600-series and US26x equivalents, the four pairs that reverse (NB/BN, PB/BP, CB/BC), and why a code says nothing about corrosion. tec@cantonlock.com (Johnson Liu) https://cantonlock.com/guides/fire-door-hardware-what-must-be-rated-2026/ https://cantonlock.com/guides/fire-door-hardware-what-must-be-rated-2026/ Mon, 21 Sep 2026 00:00:00 GMT Which door hardware components must be fire rated, how EN 1634-1 differs from UL 10C and NFPA 252 including the hose stream test, and what a fire certificate actually covers. tec@cantonlock.com (Johnson Liu) https://cantonlock.com/guides/glass-door-thickness-and-cutouts-2026/ https://cantonlock.com/guides/glass-door-thickness-and-cutouts-2026/ Mon, 21 Sep 2026 00:00:00 GMT Glass door hardware thickness ranges from 8mm to 14mm, the glass gap dimension, cut-out corner radius, and why every hole must be cut before the glass is toughened. tec@cantonlock.com (Johnson Liu) https://cantonlock.com/guides/hardware-refurbishment-survey-2026/ https://cantonlock.com/guides/hardware-refurbishment-survey-2026/ Mon, 21 Sep 2026 00:00:00 GMT What to record per door on a hardware refurbishment survey, which fields need the lock removed, how to sample by door type, and how the survey turns into an order. tec@cantonlock.com (Johnson Liu) https://cantonlock.com/guides/hardware-warranty-what-it-covers-2026/ https://cantonlock.com/guides/hardware-warranty-what-it-covers-2026/ Mon, 21 Sep 2026 00:00:00 GMT What a door hardware warranty actually covers, the five exclusions that defeat most claims, why installation and cleaning decide liability, and what a successful claim contains. tec@cantonlock.com (Johnson Liu) https://cantonlock.com/guides/hinge-grades-and-count-2026/ https://cantonlock.com/guides/hinge-grades-and-count-2026/ Mon, 21 Sep 2026 00:00:00 GMT EN 1935 hinge grades 1 to 14 with tested door masses, ANSI/BHMA A156.1 weight classes, how many hinges a door needs by height, and why the count does not substitute for the grade. tec@cantonlock.com (Johnson Liu) https://cantonlock.com/guides/key-blanks-and-restricted-profiles-2026/ https://cantonlock.com/guides/key-blanks-and-restricted-profiles-2026/ Mon, 21 Sep 2026 00:00:00 GMT Key blanks, keyway profiles, and the difference between open, restricted and patented keyways, what key control stops, patent expiry, and what a master key system needs decided first. tec@cantonlock.com (Johnson Liu) https://cantonlock.com/guides/lever-return-and-en-1906-2026/ https://cantonlock.com/guides/lever-return-and-en-1906-2026/ Mon, 21 Sep 2026 00:00:00 GMT What lever return means and why commercial specifications require it, why knobs fail accessibility requirements, and how to read the eight fields of an EN 1906 handle classification. tec@cantonlock.com (Johnson Liu) https://cantonlock.com/guides/master-key-hierarchy-planning-2026/ https://cantonlock.com/guides/master-key-hierarchy-planning-2026/ Mon, 21 Sep 2026 00:00:00 GMT How to plan a master key hierarchy: the levels explained, why cross-keying consumes capacity, expansion allowance, construction keying, and what to decide before cutting. tec@cantonlock.com (Johnson Liu) https://cantonlock.com/guides/material-traceability-mill-certs-2026/ https://cantonlock.com/guides/material-traceability-mill-certs-2026/ Mon, 21 Sep 2026 00:00:00 GMT EN 10204 inspection document types 2.1, 2.2, 3.1 and 3.2 compared, what a heat number traces, and what a door hardware factory can honestly certify about its material. tec@cantonlock.com (Johnson Liu) https://cantonlock.com/guides/moq-tooling-and-lead-time-2026/ https://cantonlock.com/guides/moq-tooling-and-lead-time-2026/ Mon, 21 Sep 2026 00:00:00 GMT What determines a door hardware MOQ (finish batch size, tooling, packaging and production run) why the range is 300 to 5,000 pieces, and what a 30-day lead time counts. tec@cantonlock.com (Johnson Liu) https://cantonlock.com/guides/powder-coating-and-ral-2026/ https://cantonlock.com/guides/powder-coating-and-ral-2026/ Mon, 21 Sep 2026 00:00:00 GMT What a RAL number does and does not specify on door hardware, why pretreatment decides coating life, where powder fails on threads and edges, and the four lines to put on an order. tec@cantonlock.com (Johnson Liu) https://cantonlock.com/guides/qualifying-a-hardware-supplier-2026/ https://cantonlock.com/guides/qualifying-a-hardware-supplier-2026/ Mon, 21 Sep 2026 00:00:00 GMT How to tell a hardware factory from a trading company or broker, five questions that separate them, what can be verified independently, and what a first order should be. tec@cantonlock.com (Johnson Liu) https://cantonlock.com/guides/samples-and-incoming-inspection-2026/ https://cantonlock.com/guides/samples-and-incoming-inspection-2026/ Mon, 21 Sep 2026 00:00:00 GMT How to use hardware samples properly: the three sample types, the golden sample procedure, what to measure on arrival, and the three things a sample cannot demonstrate. tec@cantonlock.com (Johnson Liu) https://cantonlock.com/guides/specification-section-08-71-00-2026/ https://cantonlock.com/guides/specification-section-08-71-00-2026/ Mon, 21 Sep 2026 00:00:00 GMT How a door hardware specification section is structured, what belongs in Parts 1, 2 and 3, how to write a hardware set a factory can quote, and the four clauses that decide price. tec@cantonlock.com (Johnson Liu) https://cantonlock.com/guides/spindle-sizes-and-length-2026/ https://cantonlock.com/guides/spindle-sizes-and-length-2026/ Mon, 21 Sep 2026 00:00:00 GMT Door handle spindle square sizes 8mm and 9mm, solid versus split spindles, the length calculation from door thickness and rose depth, and the spindle center dimension. tec@cantonlock.com (Johnson Liu) https://cantonlock.com/guides/stainless-grade-selection-201-304-316-2026/ https://cantonlock.com/guides/stainless-grade-selection-201-304-316-2026/ Mon, 21 Sep 2026 00:00:00 GMT How stainless 201, 304 and 316 differ chemically and in service, where each belongs, what the cost gap is, and why a spec sheet saying 304/201 has not answered the question. tec@cantonlock.com (Johnson Liu) https://cantonlock.com/guides/strike-plates-and-keeps-2026/ https://cantonlock.com/guides/strike-plates-and-keeps-2026/ Mon, 21 Sep 2026 00:00:00 GMT Standard strike plate sizes including the 4-7/8 inch ANSI strike and the 2-3/4 inch T-strike, how to calculate lip length, square versus radius corners, and box strikes versus dust boxes. tec@cantonlock.com (Johnson Liu) https://cantonlock.com/guides/submittal-package-contents-2026/ https://cantonlock.com/guides/submittal-package-contents-2026/ Mon, 21 Sep 2026 00:00:00 GMT What a door hardware submittal package must contain, the four omissions that get it rejected, product data versus test evidence, and which documents a factory can actually supply. tec@cantonlock.com (Johnson Liu) https://cantonlock.com/guides/technical-drawings-what-to-expect-2026/ https://cantonlock.com/guides/technical-drawings-what-to-expect-2026/ Mon, 21 Sep 2026 00:00:00 GMT The three kinds of hardware drawing, what PDF, DWG, DXF, STEP and BIM are each good for, why a 3D solid often does not exist, and how to ask a factory for the right file. tec@cantonlock.com (Johnson Liu) https://cantonlock.com/guides/universal-vs-handed-hardware-2026/ https://cantonlock.com/guides/universal-vs-handed-hardware-2026/ Mon, 21 Sep 2026 00:00:00 GMT Which door hardware is non-handed, which is field-reversible and which is factory-handed, the four products that catch projects out, and what to write on an order. tec@cantonlock.com (Johnson Liu) https://cantonlock.com/guides/zinc-alloy-die-cast-hardware-2026/ https://cantonlock.com/guides/zinc-alloy-die-cast-hardware-2026/ Mon, 21 Sep 2026 00:00:00 GMT What zamak zinc alloy is, what die casting does well, the four ways a bad zinc casting fails, where zinc should never be used, and what to ask a hardware factory. tec@cantonlock.com (Johnson Liu) https://cantonlock.com/news/brass-piano-hinge-is-a-finish-not-a-metal/ https://cantonlock.com/news/brass-piano-hinge-is-a-finish-not-a-metal/ Wed, 16 Sep 2026 00:00:00 GMT A brass piano hinge is usually an iron continuous hinge with a brass finish. Why the distinction matters on exterior doors, and the four widths Canton Hyland supplies. tec@cantonlock.com (Johnson Liu) https://cantonlock.com/news/choosing-a-cylindrical-lock-entrance-privacy-passage/ https://cantonlock.com/news/choosing-a-cylindrical-lock-entrance-privacy-passage/ Wed, 16 Sep 2026 00:00:00 GMT Entrance, privacy and passage functions across twelve Canton Hyland cylindrical locks, with the 60/70mm adjustable backset, the 35–45mm door range, and the one model that reaches 90mm. tec@cantonlock.com (Johnson Liu) https://cantonlock.com/news/deadbolt-d101-d102-and-the-rim-alternative/ https://cantonlock.com/news/deadbolt-d101-d102-and-the-rim-alternative/ Wed, 16 Sep 2026 00:00:00 GMT What to check on a deadbolt: throw length, anti-saw roller pin, cylinder pinning, free-turning collar and whether it can be keyed with the entrance lock above it. tec@cantonlock.com (Johnson Liu) https://cantonlock.com/news/euro-cylinder-range-45-to-90/ https://cantonlock.com/news/euro-cylinder-range-45-to-90/ Wed, 16 Sep 2026 00:00:00 GMT The model number is the total length, not the split. Which lengths Canton Hyland publishes, what the finish letters mean, and which function letters are not yet documented. tec@cantonlock.com (Johnson Liu) https://cantonlock.com/news/exit-device-push-bar-length/ https://cantonlock.com/news/exit-device-push-bar-length/ Wed, 16 Sep 2026 00:00:00 GMT Why a push bar is specified by door leaf width, which of our lengths are adjustable, and the three measurements to send with an exit-device inquiry. tec@cantonlock.com (Johnson Liu) https://cantonlock.com/news/finish-codes-us26d-626-630/ https://cantonlock.com/news/finish-codes-us26d-626-630/ Wed, 16 Sep 2026 00:00:00 GMT 626 is satin chrome on brass, 652 is satin chrome on steel, 630 is solid satin stainless. Why a finish cross-reference chart with two columns is the one that costs money. tec@cantonlock.com (Johnson Liu) https://cantonlock.com/news/lever-handle-range-lh852-lh853-lh855/ https://cantonlock.com/news/lever-handle-range-lh852-lh853-lh855/ Wed, 16 Sep 2026 00:00:00 GMT The LH852, LH853, LH855, 808 and 6491 lever sets compared: cycle life, backset, door thickness, chassis material and which functions each carries. tec@cantonlock.com (Johnson Liu) https://cantonlock.com/news/occupied-vacant-washroom-indicator-bolt/ https://cantonlock.com/news/occupied-vacant-washroom-indicator-bolt/ Wed, 16 Sep 2026 00:00:00 GMT What an occupied-vacant indicator bolt has to do, why the emergency release matters more than the window, and how the 200, 400 and 500 differ. tec@cantonlock.com (Johnson Liu) https://cantonlock.com/news/rim-night-latch-564-and-1073/ https://cantonlock.com/news/rim-night-latch-564-and-1073/ Wed, 16 Sep 2026 00:00:00 GMT Backset 60mm, door thickness 35 to 55mm, latch extension 13mm, deadbolt throw 25mm. What a rim night latch measures and why the numbers differ from a mortise lock. tec@cantonlock.com (Johnson Liu) https://cantonlock.com/news/stainless-lever-range-9007-9008-9014/ https://cantonlock.com/news/stainless-lever-range-9007-9008-9014/ Wed, 16 Sep 2026 00:00:00 GMT Lever length, rose diameter and thickness, projection and spindle size for the stainless 9000 lever range, with the door thickness each one takes. tec@cantonlock.com (Johnson Liu) https://cantonlock.com/news/ul-305-is-a-listing-not-a-grade/ https://cantonlock.com/news/ul-305-is-a-listing-not-a-grade/ Wed, 16 Sep 2026 00:00:00 GMT A UL listing is not a test report and not a grade. What each of the three panic-hardware standards actually certifies, and what Canton Hyland holds. tec@cantonlock.com (Johnson Liu) https://cantonlock.com/news/what-an-old-padlock-tells-a-lock-factory/ https://cantonlock.com/news/what-an-old-padlock-tells-a-lock-factory/ Tue, 15 Sep 2026 00:00:00 GMT A rusted riveted padlock found chained to a statue in Germany, read by people who make door hardware: what the rivets and the pin in its keyhole still say, and what rust took for good. tec@cantonlock.com (Johnson Liu) https://cantonlock.com/news/fitting-a-euro-cylinder/ https://cantonlock.com/news/fitting-a-euro-cylinder/ Mon, 14 Sep 2026 00:00:00 GMT Fitting a euro-profile cylinder: turn the cam, remove the fixing screw, set the projection flush to 3mm, and test with the door closed. Canton Hyland solid brass cylinders, nine overall lengths. tec@cantonlock.com (Johnson Liu) https://cantonlock.com/news/why-the-catalogue-is-this-wide/ https://cantonlock.com/news/why-the-catalogue-is-this-wide/ Sat, 12 Sep 2026 00:00:00 GMT How a door hardware catalog gets wide: buyers bring a sample their market needs, we cut the mould. Three to five months per mould, run-in testing, batch testing, then market certification. Canton Hyland, Guangdong, since 1998. tec@cantonlock.com (Johnson Liu) https://cantonlock.com/news/door-coordinator-double-fire-door/ https://cantonlock.com/news/door-coordinator-double-fire-door/ Fri, 11 Sep 2026 00:00:00 GMT Why a pair of fire doors with two closers needs a coordinator, how closing sequence defeats the latch, and how to match a coordinator to leaf weight. Canton Hyland DC02, 397 × 120mm, 55–100kg. tec@cantonlock.com (Johnson Liu) https://cantonlock.com/news/what-it-takes-to-tool-a-new-exit-device/ https://cantonlock.com/news/what-it-takes-to-tool-a-new-exit-device/ Fri, 11 Sep 2026 00:00:00 GMT Three moulds, three toolmakers, a pause of over a year, three months to cut and five months of trial-and-correction. A factory account of what tooling a custom panic exit device actually involves, and why a tooled lead time differs from a catalog one. tec@cantonlock.com (Johnson Liu) https://cantonlock.com/news/en-1125-or-ansi-which-standard-your-project-needs/ https://cantonlock.com/news/en-1125-or-ansi-which-standard-your-project-needs/ Wed, 09 Sep 2026 00:00:00 GMT EN 1125, EN 179 and ANSI/BHMA A156.3 are separate systems, not grades of one scale. What each measures, why fire rating is a third axis, and the five answers that select the standard before hardware is chosen. tec@cantonlock.com (Johnson Liu) https://cantonlock.com/news/master-key-systems-how-many-levels-you-need/ https://cantonlock.com/news/master-key-systems-how-many-levels-you-need/ Wed, 09 Sep 2026 00:00:00 GMT The master key system chart from GGMK down to change keys, a worked building example, and why every extra level leaves fewer change keys to issue. tec@cantonlock.com (Johnson Liu) https://cantonlock.com/news/cross-referencing-a-lock-you-already-buy/ https://cantonlock.com/news/cross-referencing-a-lock-you-already-buy/ Tue, 08 Sep 2026 00:00:00 GMT Six dimensions decide whether one mortise lock substitutes for another: backset, center distance, faceplate, case size, spindle and door thickness. Why model numbers, finish names and grade designations do not carry across, and what to check first in a retrofit. tec@cantonlock.com (Johnson Liu) https://cantonlock.com/news/door-stop-holder-or-flush-bolt/ https://cantonlock.com/news/door-stop-holder-or-flush-bolt/ Tue, 08 Sep 2026 00:00:00 GMT DS013 is a door stopper; DS011 is a flush bolt. How to tell stops, holders and flush bolts apart, why projection is the number that decides a stop, and why a stop is selected against the handle rather than the door. tec@cantonlock.com (Johnson Liu) https://cantonlock.com/news/what-documents-you-can-actually-get/ https://cantonlock.com/news/what-documents-you-can-actually-get/ Tue, 08 Sep 2026 00:00:00 GMT HYDE has 84 dimensioned SVG assets, 72 on visible listings, and one searchable catalog PDF. No BIM library or door-preparation SVGs. tec@cantonlock.com (Johnson Liu) https://cantonlock.com/news/euro-cylinder-length-and-split/ https://cantonlock.com/news/euro-cylinder-length-and-split/ Mon, 07 Sep 2026 00:00:00 GMT A 70mm euro cylinder can be 35/35, 30/40 or 40/30. How to measure from the cam for the split your door needs, why projection over 3mm is a security problem, and what our catalog does and does not publish. tec@cantonlock.com (Johnson Liu) https://cantonlock.com/news/what-a-test-report-actually-covers/ https://cantonlock.com/news/what-a-test-report-actually-covers/ Mon, 07 Sep 2026 00:00:00 GMT EN 1125, CE and durability reports certify one model in one configuration, not a product family. How to read the scope line, why report dates matter, and the difference between a test report, a certificate of conformity and ISO 9001. tec@cantonlock.com (Johnson Liu) https://cantonlock.com/news/what-oem-actually-changes/ https://cantonlock.com/news/what-oem-actually-changes/ Mon, 07 Sep 2026 00:00:00 GMT Packaging, branding on the part, finish and tooling are four separate OEM decisions with four different costs. What each one requires, why our own tooling matters, and what to send to start. tec@cantonlock.com (Johnson Liu) https://cantonlock.com/news/handing-left-right-and-universal/ https://cantonlock.com/news/handing-left-right-and-universal/ Sun, 06 Sep 2026 00:00:00 GMT Handing is one letter on an order and the commonest reason a quotation goes back. The European and ANSI conventions disagree, here is how to state it so it cannot be misread. tec@cantonlock.com (Johnson Liu) https://cantonlock.com/news/six-values-an-order-needs/ https://cantonlock.com/news/six-values-an-order-needs/ Sun, 06 Sep 2026 00:00:00 GMT Model, finish, backset, center distance, handing and door thickness. Six values decide whether a lock can be installed, and which one is missing decides whether you lose a day or a container. tec@cantonlock.com (Johnson Liu) https://cantonlock.com/news/trim-handle-or-panic-bar/ https://cantonlock.com/news/trim-handle-or-panic-bar/ Sun, 06 Sep 2026 00:00:00 GMT A panic bar opens a door from inside only. The outside trim handle is a separate order line with its own function, cylinder cutout and fixing centers. How to specify both. tec@cantonlock.com (Johnson Liu) https://cantonlock.com/news/ansi-grade-1-vs-en-1125-exit-devices/ https://cantonlock.com/news/ansi-grade-1-vs-en-1125-exit-devices/ Tue, 01 Sep 2026 00:00:00 GMT ANSI/BHMA A156.3 grades exit devices 1 to 3 by durability; EN 1125 codes cycles, door mass and fire-door use digit by digit. How to read each rating. tec@cantonlock.com (Johnson Liu) https://cantonlock.com/news/narrow-stile-aluminium-door-lock-sag/ https://cantonlock.com/news/narrow-stile-aluminium-door-lock-sag/ Tue, 01 Sep 2026 00:00:00 GMT Why narrow-stile aluminum doors drop and stop latching, how backset and case depth interact with a 30mm stile, and which parts actually carry the load. tec@cantonlock.com (Johnson Liu) https://cantonlock.com/news/push-bar-or-touch-bar-panic-exit-devices/ https://cantonlock.com/news/push-bar-or-touch-bar-panic-exit-devices/ Mon, 31 Aug 2026 00:00:00 GMT Push bar or touch bar (box-style) panic exit device: the mechanical advantage of each, what rim, mortise and vertical rod mean, and which suits fire doors and busy corridors. tec@cantonlock.com (Johnson Liu) https://cantonlock.com/news/stainless-steel-grades-304-201-316/ https://cantonlock.com/news/stainless-steel-grades-304-201-316/ Mon, 31 Aug 2026 00:00:00 GMT What separates 201, 304 and 316 stainless in door hardware, why 201 rusts near the coast, how to test a sample with a magnet, and what to ask a supplier. tec@cantonlock.com (Johnson Liu) https://cantonlock.com/news/what-a-frameless-glass-door-needs/ https://cantonlock.com/news/what-a-frameless-glass-door-needs/ Mon, 31 Aug 2026 00:00:00 GMT Every part a frameless glass door needs: top and bottom patch fittings, over-panel patch, floor spring, lock, strike and pull handle, plus glass thickness. tec@cantonlock.com (Johnson Liu) https://cantonlock.com/news/door-hardware-schedule-guide/ https://cantonlock.com/news/door-hardware-schedule-guide/ Thu, 27 Aug 2026 00:00:00 GMT What a door hardware schedule is, how hardware sets expand into line items, and the three questions to ask before quoting against one. tec@cantonlock.com (Johnson Liu) https://cantonlock.com/news/mortise-lock-backset-and-centre-distance-guide/ https://cantonlock.com/news/mortise-lock-backset-and-centre-distance-guide/ Thu, 27 Aug 2026 00:00:00 GMT How to read backset and center distance from a mortise lock case model number, why 85mm and 72mm both exist, and which backset fits which door. tec@cantonlock.com (Johnson Liu) https://cantonlock.com/news/reading-door-hardware-model-numbers/ https://cantonlock.com/news/reading-door-hardware-model-numbers/ Thu, 27 Aug 2026 00:00:00 GMT PB, AB, AC, SN, SC, BN, SSS and PSS decoded, plus the ET, PS and BK function suffixes, how to read a Chinese hardware price list and quote from it. tec@cantonlock.com (Johnson Liu)