Value Collection MP31375 Sae Flat Washer No. 12 250 Pack

Product Description

The VALUE COLLECTION MP31375 is a No. 12 screw SAE flat washer made from steel with a zinc-plated finish. Flat washers distribute load across a fastened joint, reducing surface damage and preventing fastener pull-through on bolted or screwed connections. The SAE specification defines a narrower outer diameter profile compared to USS washers, making this style well-suited for close-tolerance applications. Each washer measures 0.25 inches inside diameter, 0.5625 inches outside diameter, and 0.0625 inches thick. This pack contains 250 individual washers, supporting job-site stocking and high-volume fastening work.

This washer is used across a wide range of trade applications including HVAC equipment assembly, plumbing fixture mounting, electrical panel and enclosure work, and general mechanical assembly. The No. 12 screw size fits standard No. 12 machine screws and is commonly encountered in sheet metal, light structural, and equipment enclosure installations. The zinc plating provides a baseline level of corrosion resistance suitable for indoor and dry or intermittently exposed environments.

Key Features

• SAE flat washer profile for close-tolerance fastening applications
• Steel construction with zinc-plated finish for corrosion resistance
• Fits No. 12 screws with 0.25-inch inside diameter
• 0.5625-inch outside diameter distributes clamp load across the joint surface
• 0.0625-inch thickness for standard load-bearing use
• Pack of 250 washers for stocking and production use

Compatibility

Designed for use with No. 12 machine screws following SAE flat washer dimensional standards, suitable for general mechanical, electrical, and HVAC assembly applications requiring inch-measurement hardware.

Installation Notes

Install flat washers between the fastener head or nut and the work surface to distribute clamping load and protect the substrate. Ensure the washer inside diameter seats cleanly around the screw shank without binding. For electrical enclosure work, follow applicable NEC guidelines regarding hardware materials and grounding considerations. Do not use zinc-plated steel washers in continuously wet, submerged, or chemically aggressive environments where stainless or coated hardware is specified.