4-1/2" X 4-1/2" Ball Bearing Hinge, Stainless Steel 630, Each 19106

5BB1 5 Knuckle, ball bearing full mortise hinge

– Recommended for medium weight doors (<150 lbs)
– Recommended for medium frequency usage (<400 cycles per day)
– Made with two ball bearing assemblies
– Recommended for use with a door closer
– Packed with fasteners for hollow metal and wood doors: 12-24 x 1/2 UFPHMS, 12 x 1 1/4 FPHWS; 10-24 x 1/2 UFPHMS; 10 x 1 FPHWS (3.5×3.5 hinge size only)

Certifications
– Certified to ANSI/BHMA A156.1 for performance standards
– Meets ANSI/BHMA 156.7 for template hinge dimensions
– UL Classified for windstorm rated assemblies – R37965
– UL Listed, 3-hour fire door
– Material substrate
– Made from brass, 1040 steel, or 304 series stainless steel