Hillman Fasteners 280056 Sae Flat Washer 1/4 Inch 100 Pack

Product Description

The HILLMAN FASTENERS 280056 is a 1/4 inch SAE flat washer sold in a 100-piece pack. Made from zinc plated steel, these washers distribute load across bolted joints, protecting mating surfaces from damage and reducing the risk of fastener pull-through. SAE flat washers conform to Society of Automotive Engineers dimensional standards, which specify tighter outer diameter tolerances compared to USS patterns. Licensed tradespeople and maintenance crews keep packs of these on hand for general mechanical assembly, equipment mounting, and structural fastening work across HVAC, plumbing, and electrical installations.

These washers are suited for residential and light commercial applications where a 1/4 inch fastener is used. Common install scenarios include equipment mounting, panel attachment, pipe hanger assembly, and general trade work requiring a standard flat washer to bear load or protect a surface. The zinc plating provides basic corrosion resistance for indoor and light-duty outdoor environments.

Key Features

• SAE dimensional standard for consistent outer diameter and thickness tolerances
• Zinc plated steel construction for corrosion resistance in light-duty environments
• 1/4 inch nominal bolt size compatibility
• 100-piece pack reduces per-unit cost for bulk fastener needs
• Load-distributing profile reduces surface damage under bolt heads and nuts

Compatibility

Designed as an OEM-style replacement or general-stock flat washer for use with 1/4 inch fasteners in standard SAE applications across trade and mechanical assembly work.

Installation Notes

Flat washers are installed by licensed tradespeople and maintenance technicians using standard hand tools or power drivers. Always de-energize electrical panels and shut off system power before working in areas where fasteners are used near live components. Torque fastener assemblies per the equipment manufacturer guidelines and applicable codes such as NEC for electrical work or IPC for plumbing. Do not reuse washers that show deformation, corrosion, or cracking.