PBB 4B81-US26D-4.5 X 4.5 5-Knuckle Full Mortise Hinge, Heavy Weight, 4.5in x 4.5in, Satin Chrome

PBB Inc 4B81-US26D 5-Knuckle Hinge is designed for heavy-weight doors that require reliable performance in high-frequency service environments. With a robust 4.5-inch x 4.5-inch full mortise construction, this hinge is crafted from ferrous steel and finished in a sleek satin chrome (US26D/652), ensuring both durability and aesthetic appeal. Engineered to meet the stringent specifications set by the American National Standards Institute (ANSI), this hinge features a ball-bearing design, making it essential for doors equipped with closers or those that are fire-rated. Its heavy-weight rating ensures optimal support for metal and wood doors alike, providing the strength needed for demanding applications. The hinge boasts a material gauge of .180 ± .005, ensuring precision and reliability in operation. With eight mounting holes, installation is straightforward, allowing for secure attachment that promises longevity. Each hinge is packaged individually for convenience, with a unit carton containing three hinges and a screw pack that includes all necessary machine and wood screws. Whether for commercial or residential use, the PBB Inc 4B81-US26D 5-Knuckle Hinge delivers the performance and resilience that professionals and knowledgeable homeowners expect. Choose this hinge for a dependable solution that combines functionality with style.

5-Knuckle Hinge, Full Mortise Heavy Weight, Ball Bearing, 4.5in x 4.5in (4545), Ferrous Steel Base, Satin Chrome US26D/652

Template hinges are manufactured to close tolerances and meet all specifications and requirements set by the American national standards institute (ANSI).

Features:

• For heavy weight doors receiving high frequency service.
• Ball bearing hinges must be used on doors in conjunction with door closers and on all fire rated openings.
• All hinges are ANSI template.
• For hospital type, add HT to suffix of part number.

4B81 – 4.5" X 4" OR 4.5" X 4.5" Specifications:

• Weight: Heavy weight
• Hinge Function: 4 Ball bearing heavy weight (4B)
• Hinge Type: Full mortise (1)
• Material Gauge: .180 ± .005 for 4-1/2" x 4", .180 ± .005 for 4-1/2" x 4-1/2"
• Height: 4.50 (+.000/-.015) for 4-1/2" x 4", 4.50 (+.000/-.015) for 4 1/2" x 4-1/2"
• Height of Leaf: 4.00 ± .015 for 4-1/2" x 4", 4.50 ± .015 for 4-1/2" x 4-1/2"
• 4.5" Standard Screw Size: FHMS – 12-24 x 1/2", FHWS – 12 x 1-1/4"
• Base Material:
• Stainless Steel (5) - Polished and satin finish
• Brass (2) - Polished and plated
• Steel (8) - Polished and plated, or Bonderized and prime coated for painting

Packaging Information:

• One hinge per plastic bag
• 3 hinges and 1 screw pack per unit carton
• 16 unit carton or 48 hinges per master shipping carton
• 1 screw pack includes all machine screws (24)
• 1/2 wood screws (12)
• ATMS & AWS also available

Resources

• Cut Sheet