Heavy Duty Thresholds | McMaster-Carr

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3 Products

Heavy Duty Ribbed Thresholds

Strong enough to handle forklifts and heavy vehicle traffic, these thresholds add a slip-resistant bridge between flooring surfaces. They’re 10 times stronger than standard thresholds and provide more grip than smooth thresholds.

Grit-Coated Aluminum—Grit-coated aluminum thresholds have a sandpaper-like texture for traction in wet and oily conditions. This coating also adds durability to these thresholds, so they last longer than uncoated aluminum versions. However, it makes them difficult to cut and drill.

ANSI/BHMA A156.21—ANSI and BHMA certified, these thresholds have been tested to withstand compressive loads.

	Ht.	Thk.	Load Cap., lb.	Fire Safety Rating	Specs. Met	Mount Type	Mounting Fasteners Included	Choose a Length, ft.		Per Ft.
Aluminum



	5"	1/4"	1/4"	10,000	UL 10C: 1 1/2 hr. for Wood Fire Doors, 3 hr. for Metal Fire Doors	ADA Compliant, ANSI/BHMA A156.21	Screw On	Yes	3 , 4 , 6 , 8	0000000	000000


	Grit-Coated Aluminum



			5"	1/2"	5/16"	10,000	UL 10B, UL 10C: 1 1/2 hr. for Wood Fire Doors, 3 hr. for Metal Fire Doors	ADA Compliant, ANSI/BHMA A156.21	Screw On	Yes	3 , 4 , 6	000000	00000


			6"	1/2"	5/16"	12,000	UL 10B, UL 10C: 1 1/2 hr. for Wood Fire Doors, 3 hr. for Metal Fire Doors	ADA Compliant, ANSI/BHMA A156.21	Screw On	Yes	3 , 4 , 6	000000	00000