Value Collection C85887 Uss Flat Washer 1 in Steel Zinc

Product Description

The VALUE COLLECTION C85887 is a USS flat washer designed for use with 1-inch screws and bolts in general mechanical and structural fastening applications. Manufactured from Grade 8 steel with a zinc-plated finish, this washer provides a broad bearing surface that distributes clamping load and reduces the risk of fastener pull-through. The inside diameter measures 1-1/16 inches, the outside diameter measures 2-1/2 inches, and the thickness is 5/32 inches. The zinc coating offers baseline corrosion resistance suitable for indoor and sheltered outdoor environments. This washer follows the USS (United States Standard) dimensional series, which specifies a wider outer diameter relative to screw size compared to SAE washers.

This washer is used across a wide range of trade and industrial fastening tasks including HVAC equipment mounting, plumbing fixture installation, electrical panel and enclosure assembly, structural framing connections, and general fabrication work. The wider USS profile makes it particularly useful where the mating material is soft, oversized, or subject to vibration-induced loosening. Sold individually with a minimum order quantity of 10 pieces.

Key Features

• USS series flat washer sized for 1-inch screws and bolts
• Grade 8 steel construction for high-strength fastening applications
• Zinc-plated finish provides corrosion resistance in dry and sheltered environments
• 1-1/16 inch inside diameter fits standard 1-inch fastener shanks with appropriate clearance
• 2-1/2 inch outside diameter distributes load over a broad bearing surface
• 5/32 inch thickness balances rigidity with compact stack height

Compatibility

Designed for use with 1-inch USS-series bolts, screws, and threaded fasteners in standard inch-measurement fastening assemblies.

Installation Notes

Install between the fastener head or nut and the mating surface to distribute clamping load. Ensure the washer inside diameter seats cleanly over the fastener shank without binding. Follow applicable torque specifications for the fastener grade and size per the assembly or structural drawing. Inspect the zinc coating for damage before installation in corrosive or wet environments, and substitute a stainless or hot-dip galvanized washer where prolonged moisture exposure is expected.