Value Collection FWUIS137-025BX Uss Flat Washer Steel 25pk

Product Description

The VALUE COLLECTION FWUIS137-025BX is a USS-pattern flat washer designed for use with 1-3/8 inch screws and bolts. Manufactured from steel with a plain finish, this washer distributes load across the bearing surface to reduce fastener pull-through and protect the mating material. The washer meets USS (United States Standard) dimensional requirements, featuring a 1-1/2 inch inside diameter, a 3-1/4 inch outside diameter, and a 3/16 inch thickness. Sold in a minimum quantity of 25 per order, this part suits general mechanical assembly, structural connections, and equipment maintenance applications across multiple trades.

USS flat washers in this size range are commonly used in commercial and industrial installations where larger fasteners are employed, including structural steel work, heavy equipment assembly, HVAC equipment mounting, and plumbing fixture support. The 1-3/8 inch screw size corresponds to heavy-duty fastener applications where standard SAE washers would provide insufficient bearing area. Technicians and tradespeople who work with large-diameter fasteners in steel-to-steel or steel-to-substrate connections will find this washer appropriate for those assemblies.

Key Features

• USS pattern provides wider outer diameter for greater load distribution compared to SAE washers
• 1-1/2 inch inside diameter fits 1-3/8 inch nominal screw or bolt size
• 3-1/4 inch outside diameter spreads clamping load across a broad bearing surface
• 3/16 inch thickness resists deformation under high clamping loads
• Steel construction for use in general mechanical and structural fastening applications
• Plain finish suitable for indoor or protected environments

Compatibility

Designed as an OEM-style replacement or general-use USS flat washer for 1-3/8 inch nominal fastener sizes in standard inch-measurement assemblies.

Installation Notes

USS flat washers in this size are typically installed by millwrights, pipefitters, HVAC technicians, and general maintenance trades. Always place the washer with the stamped side facing away from the fastened surface where applicable. Verify that the washer material and finish are compatible with the service environment before installation, particularly in moisture-prone or chemically active locations where plain steel may require additional protection.