Value Collection FWUIS1120-5LBBX Uss Flat Washer

Product Description

The VALUE COLLECTION FWUIS1120-5LBBX is a USS flat washer sized for 1-1/8 inch screws and bolts. Stamped from Grade 2 steel and finished with a zinc plating for corrosion resistance, this washer distributes load across a broad bearing surface. The inside diameter measures 1.243 inches, the outside diameter measures 2.78 inches, and the thickness is 0.192 inches. It is used in general mechanical assembly, structural fastening, and maintenance applications across plumbing, HVAC, electrical, and construction trades.

This washer follows USS (United States Standard) dimensional standards, making it a common choice for general-purpose bolted connections where a wider bearing surface is needed compared to SAE washers. Typical applications include equipment mounting, pipe support hardware, structural framing connections, and general fastener assemblies in both residential and light commercial settings. It is installed by maintenance technicians, millwrights, plumbers, and HVAC mechanics working with 1-1/8 inch fastener hardware.

Key Features

• USS standard dimensions: 1.243 inches ID, 2.78 inches OD, 0.192 inches thick
• Grade 2 steel construction for reliable strength in general-purpose applications
• Zinc-plated finish provides basic corrosion resistance in dry to mildly humid environments
• Wide outer diameter distributes clamp load and reduces fastener pull-through
• Inch measurement system, compatible with standard 1-1/8 inch fastener hardware

Compatibility

Designed as a general-purpose USS flat washer for use with 1-1/8 inch screws and bolts in standard inch-measurement fastener assemblies.

Installation Notes

Flat washers are installed by placing them over the fastener shank between the nut or bolt head and the mating surface before tightening. Ensure the inside diameter clears the fastener threads cleanly before assembly. For outdoor or high-moisture environments, evaluate whether additional corrosion protection beyond zinc plating is required. Always torque fasteners according to the fastener manufacturer specifications and applicable code requirements for the assembly type.