Hillman Fasteners 280064 Sae Flat Washer 1/2 Inch 50 Pack

Product Description

The HILLMAN FASTENERS 280064 is a 50-pack of 1/2 inch SAE flat washers manufactured from zinc plated steel. SAE flat washers are used to distribute load across a fastener bearing surface, reducing the risk of pull-through and surface damage under bolt or nut heads. The zinc plating provides a baseline layer of corrosion resistance suited to general indoor and light outdoor applications. These washers conform to SAE dimensional standards, making them a straightforward fit for standard 1/2 inch fastener assemblies. Plumbers, electricians, HVAC technicians, and general contractors routinely stock SAE flat washers for equipment mounting, pipe support bracketing, and structural connections.

This 50-pack is appropriate for residential and light commercial installations where 1/2 inch fasteners are common. Typical applications include equipment base mounting, ductwork support hardware, electrical panel anchoring, and general mechanical assembly. The pack quantity suits job-site restocking or single-project use where multiple fastener points require washers.

Key Features

• SAE flat washer profile for standard load distribution under bolt and nut heads
• 1/2 inch nominal size fits standard 1/2 inch fastener hardware
• Zinc plated steel construction provides corrosion resistance for general use
• 50-piece pack quantity supports single projects or partial restocking
• SAE dimensional standard ensures broad compatibility with common hardware

Compatibility

Designed as a standard SAE flat washer for use with 1/2 inch bolts, screws, and nuts in general mechanical, HVAC, plumbing, and electrical installation applications.

Installation Notes

SAE flat washers are installed by general contractors, HVAC technicians, plumbers, and electricians as part of standard fastener assemblies. Place the washer between the fastener head or nut and the mating surface before tightening. Ensure the fastener, washer, and base material are compatible in terms of galvanic corrosion potential, particularly in damp or outdoor environments where dissimilar metals can accelerate corrosion. No special tools are required beyond standard hand or power fastening equipment.