Twelve practical guides on door hardware types, grades and compliance for B2B buyers — written to help you specify correctly before you request a quote, not to sell a single SKU.
Understand door locks, hinges, handles and viewers by construction.
Mechanical, electronic, lever and mortise door locks compared — mechanism, typical application, and ANSI/BHMA grade, so you can specify the right type before requesting a quote.
Product Types ExplainedButt, concealed and hydraulic door hinges compared — load grade, cycle life and typical application — so you can specify the right hinge type before requesting a quote.
Product Types ExplainedPull handles, lever handles and knobs compared by operating mechanism, accessibility and typical application, so you can specify the right door grip before requesting a quote.
Product Types ExplainedOptical glass-lens peepholes and digital camera door viewers compared by viewing angle, door thickness fit and certification, so you can specify the right viewer before requesting a quote.
Match ANSI/BHMA grade, EN 1935 rating, backset and finish to your project.
What ANSI/BHMA Grade 1, 2 and 3 mean for door hardware cycle life, application and fire-door eligibility — a sourcing reference for buyers.
Grade & SpecificationHow to read the EN 1935 8-digit hinge performance code — load category, cycle life, corrosion resistance and fire-door compatibility.
Grade & SpecificationHow to measure and choose the correct door lock backset — 60mm vs 70mm, US vs metric sizing, and how backset affects bulk sourcing.
Grade & SpecificationPVD, brushed/satin and powder-coated door hardware finishes explained — durability, appearance and how to match finish to environment.
Certifications, documentation and how a consolidated order actually works.
What EN 12209 covers for mechanical locks and latches, how it differs from ANSI/BHMA grading, and how to specify it correctly on a door hardware sourcing order.
Certification & SourcingHow UL10C and EN 1634 define fire-rated door hardware, which hinge, lock, and closer grades qualify for fire door assemblies, and how to specify them correctly.
Certification & SourcingWhat finding a door hardware manufacturer in China actually involves, common pitfalls in direct sourcing, and what to verify before placing an order.
Certification & SourcingPilot vs. Standard MOQ tiers, sample and bulk production lead times, and what changes them — a practical guide for planning a door hardware sourcing timeline.
Send your grade, finish and certification need — we match a verified factory and return a consolidated quotation.
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