Hillman Fasteners 270061 Flat Washer 3/8 in Zinc Uss 100 Pack

Product Description

The HILLMAN FASTENERS 270061 is a 3/8-inch flat washer in a wide-pattern USS configuration, made from zinc-plated steel. The wide pattern provides a larger outer diameter for increased load distribution across surfaces, reducing the chance of fastener pull-through on softer or thinner materials. The zinc plating adds corrosion resistance for general indoor and sheltered outdoor use. Each pack contains 100 washers, making it a practical quantity for contractors, plumbers, electricians, and general tradespeople who go through fastener hardware at volume on job sites.

These flat washers are suited for a wide range of trade and construction applications. The USS wide-pattern specification means the outer diameter-to-inner diameter ratio is larger than standard, making them a preferred choice when bolting into wood framing, sheet materials, or wherever bearing surface matters. Common uses include equipment mounting, structural connections, and general mechanical assembly in residential and light commercial work.

Key Features

• 3/8-inch inner diameter, USS wide-pattern flat washer
• Zinc-plated steel construction for corrosion resistance in general service conditions
• Wide outer diameter distributes clamping load and reduces surface damage
• 100-piece pack suitable for bulk job-site use
• Compatible with standard 3/8-inch bolts, screws, and threaded rod

Compatibility

Designed as a standard USS wide-pattern replacement or general-use flat washer for 3/8-inch fasteners across residential and light commercial mechanical, structural, and trade applications.

Installation Notes

Flat washers are installed by licensed tradespeople and general contractors as part of bolted connections and equipment-mounting assemblies. Always position the washer between the fastener head or nut and the mating surface before tightening. Ensure the correct washer pattern and material are specified for the application, particularly in environments with moisture exposure where higher-grade corrosion protection may be required by local codes.