قفل من الدرجة الثانية

قفل من الفولاذ المقاوم للصدأ عالي التحمل من درجتين، مناسب للأبواب ذات الخصوصية، يستخدم بشكل أساسي في أبواب دورات المياه في المراكز التجارية والشركات، مع أشرطة مؤشر حمراء وخضراء.

Product Series

sunshine hardware

FAQ

What exactly does "Commercial Grade 2" mean for a door lock?

"Commercial Grade 2" is aspecific performance rating defined by ANSI/BHMA (American National Standards Institute / Builders Hardware Manufacturers Association) standards. It is not a marketing term. For locksets, it is governed by standards likeANSI/BHMA A156.13. A Grade 2 rating certifies that the lock has passed rigorous tests fordurability, security, and finish, positioning it as theoptimal balance between heavy-duty performance and cost-effectivenessfor many commercial and multi-family residential projects.

What are the key performance tests a Grade 2 lock must pass?

To earn a Grade 2 rating, locks are subjected to punishing tests, including:

  • Cycle Test: Minimum of 400,000 cycles of opening and closing, simulating years of high-frequency use.
  • Security Tests: Evaluates resistance to forced entry, including deadbolt strength (minimum 450 lbf impact), torque resistance on the lever/knob, and anti-pick/drill features on the cylinder.
  • Finish Tests: The surface coating must withstand salt spray corrosion tests and show minimal wear after repeated abrasion.

Where should I specify Grade 2 locks?

Grade 2 is the most widely specified grade for non-critical commercial and high-traffic residential applications. Typical use cases include:

  • Multi-Family Housing: Apartment unit entry doors, interior common doors.
  • Light Commercial: Office suites, hotel guest rooms, conference rooms, retail store back offices.
  • Institutional Buildings: Classroom doors, dorm rooms, administrative offices in schools.
  • High-End Residential: Main entry and interior doors where durability beyond basic builder-grade (Grade 3) is desired.

What project support as a professional supplier offer for Grade 2 locks?

As a commercial supplier should provide:

  • Keying Services: Master key systems, keyed-alike suites, and grand master keying for complex properties.
  • OEM & Customization: Private labeling, custom finishes (PVD coatings), and tailored packaging for large projects.
  • Technical Documentation: Detailed specification sheets, CAD/BIM files, and installation templates for architects and contractors.
  • Warranty: A strong limited lifetime mechanical warranty (5 years on finish) signals confidence in the product.