Hillman Fasteners 270012 3/8 Inch Flat Washer Zinc Plated Uss 5 Lb

Product Description

The HILLMAN FASTENERS 270012 is a bulk-pack flat washer designed for general fastening applications in mechanical, plumbing, electrical, and construction trades. Each pack contains approximately 335 zinc plated steel washers in a 3/8 inch size following the USS wide pattern standard. The USS wide pattern provides a larger outer diameter than standard flat washers, distributing load more effectively across the bearing surface. The zinc plating delivers corrosion resistance suitable for indoor and protected outdoor installations. Sold in a 5 lb pack, this bulk format is well suited for job sites and shop stock where high-volume fastening work is common.

These flat washers are used wherever a 3/8 inch fastener requires load distribution or surface protection beneath a bolt head or nut. Typical applications include structural assemblies, equipment mounting, HVAC equipment installation, electrical panel and conduit support work, and general mechanical assembly. The USS wide pattern is a commonly specified washer standard in trade and light industrial work, making this pack a practical stock item for service vans and supply rooms alike.

Key Features

• USS wide pattern provides larger outer diameter for improved load distribution
• Zinc plated steel construction for corrosion resistance in typical service environments
• 3/8 inch nominal size fits standard 3/8 inch bolts and threaded rod
• Approximately 335 pieces per 5 lb pack for bulk job site and shop use
• Pack quantity of 12 units available for wholesale or supply house stocking

Compatibility

Designed for use with 3/8 inch fasteners in general mechanical, structural, and trade installation applications following USS wide pattern flat washer specifications.

Installation Notes

Flat washers are installed by any trade using 3/8 inch bolted connections. Always select a washer material and finish appropriate for the service environment, particularly in wet or corrosive locations where additional protection beyond zinc plating may be required. No special tooling is required for installation beyond standard wrenches or sockets. Follow applicable codes such as NEC or IPC when using fasteners in electrical or plumbing system installations.