Value Collection USS050 Uss Flat Washer 1/2 in Steel

Product Description

The VALUE COLLECTION USS050 is a USS-pattern flat washer designed for use with 1/2 inch screws and bolts. Manufactured from steel with a plain finish, this washer distributes load across the fastener bearing surface to reduce fastening stress and prevent pull-through in soft or oversized clearance holes. The USS050 measures 9/16 inches inside diameter, 1-3/8 inches outside diameter, and 0.109 inches thick, conforming to ASME B18.21.1-2009. It is appropriate for general mechanical assembly, structural connections, and maintenance applications where a wider bearing surface is needed versus the SAE washer pattern. Tradespeople across plumbing, HVAC, and general construction use USS flat washers daily.

This washer suits residential and light commercial applications requiring a standard 1/2 inch fastener with increased load-bearing surface area. The USS pattern features a larger outside diameter compared to SAE equivalents, making it the preferred choice when working with oversized or worn holes, softer substrate materials, or wherever broader load distribution is specified. It is sold individually with a minimum order quantity of 10 pieces, making it practical for stocking trade service vans and shop inventory.

Key Features

• USS pattern with 1-3/8 inch outside diameter for wider load distribution than SAE equivalents
• 9/16 inch inside diameter fits standard 1/2 inch screws and bolts with proper clearance
• 0.109 inch thickness per ASME B18.21.1-2009 dimensional standard
• Steel construction with plain finish suitable for general-purpose fastening applications
• Inch measurement system; conforms to ASME B18.21.1-2009

Compatibility

Designed as an OEM-style replacement or general-use flat washer for 1/2 inch screw and bolt assemblies requiring USS-pattern dimensions per ASME B18.21.1-2009.

Installation Notes

Installation requires no special tools beyond standard hand or power fastening equipment. Always ensure the mating fastener and nut are rated for the same or greater load as the application demands. Plain-finish steel washers are not corrosion-resistant; apply appropriate protective measures if used in damp or outdoor environments. Follow applicable mechanical or structural codes for the specific trade and jurisdiction.