Value Collection MSC-60931144 No. 4 Flat Washer 316 Ss

Product Description

The VALUE COLLECTION MSC-60931144 is a Number 4 standard flat washer manufactured from Grade 316 stainless steel with a plain finish. Flat washers distribute fastener load across a surface, reducing stress concentration and preventing pull-through on softer substrates. Grade 316 stainless steel provides elevated corrosion resistance compared to Grade 304, making this washer suitable for wet, marine, or chemically aggressive environments. The washer measures 1/8 inch inside diameter, 5/16 inch outside diameter, and 0.032 inches thick. Licensed tradespeople and maintenance professionals working with Number 4 fasteners in corrosion-prone applications will find this washer sized to standard inch specifications.

This washer is sized for Number 4 screws and bolts in standard inch fastener applications. Typical use cases include light mechanical assemblies, electrical panel work, plumbing fixture attachment, and marine or coastal installations where saltwater or chemical exposure demands a higher-grade stainless material. The plain finish means no additional coating is applied, which is appropriate when the base alloy alone provides sufficient corrosion protection or when coatings could interfere with electrical conductivity or surface contact requirements.

Key Features

• Grade 316 stainless steel construction for superior corrosion resistance in wet and marine environments
• 1/8 inch inside diameter sized for Number 4 fasteners
• 5/16 inch outside diameter provides load distribution across the fastener bearing surface
• 0.032 inch thickness meets standard flat washer dimensional requirements for Number 4 screws
• Plain finish with no coating — base alloy corrosion resistance is unaltered
• Inch system of measurement — compatible with standard inch fastener specifications

Compatibility

Designed as a standard flat washer for use with Number 4 inch-series screws and bolts in residential, commercial, and marine fastener assemblies.

Installation Notes

Install flat washers with the fastener passing through the inside diameter before seating the nut or screw head against the washer face. Ensure the washer outside diameter is large enough to bear against the substrate without bridging over a hole or slot. When working with stainless fasteners, use stainless-compatible tools to avoid galvanic contamination of the mating surfaces. Follow applicable mechanical or electrical codes when incorporating fastener hardware into structural or panel assemblies.