Stainless Steel Ball Bearing Hinge, 2 ball bearings, Fixed Pin, 5 Knuckles, Full Mortise type.
Certification: UL Listed, 3 hours fire rated NFPA80
Item no.:SS454034-2BB or 4BB Size: H * W* T, 4.5"x4.0"x3.4mm
All Materials for hinges including ball bearings (inner rings, out ring, balls), caps, pins, hinge leaves, screws will be made of Stainless Steel 316 (10% nickel, 16~18% chrome, 2% more Molybdenum.
Finish: Satin Stainless Steel (SSS) as standard, others are workable upon request.
Accessories (fasteners): imperial machine screws 12-24 x 7/32" as standard or metric machine screw M6x12 and Stainless steel wood screws # 10# 1-1/4" as optional; 8 pieces screw holes per hinge.
Package: 1 piece into a poly bag, 2 pieces (1 pair) per each small box, 30 pairs pear each carton, Carton size:27x21x17.5CM, 26.5 KG per carton. Blister card package is available too. Pallets packing for export.
Usage: Wood doors, metal doors, aluminum doors;
Application: fire-rated doors or non fire-rated doors for Residential Projects, Commercial Projects, School Projects and other Public Projects with heavy traffic.