[4000 BULK] Flat Washers USS Grade 8 Steel Plain Made in USA 5/16

Upgrade your hardware kit with these Flat Washers USS Grade 8 Steel Plain, made in the USA and sized for 5/16 fasteners. Built for heavy-duty reliability, they distribute load evenly to protect surfaces and extend the life of assemblies.

Key features

• Material: USS Grade 8 steel — high-strength, durable fastener support
• Finish: Plain (uncoated) finish for predictable seating and compatibility with a wide range of assemblies
• Size: 5/16 inch (fits standard 5/16" bolts and fasteners)
• Origin: Made in USA — manufactured domestically to strict quality standards
• Function: Provides even load distribution, protects mating surfaces, and reduces wear

Applications

Ideal for automotive, industrial, and construction projects where strong, reliable washers are required. Use with 5/16" bolts to achieve secure, long-lasting closures.

Quality and assurance

Designed to meet the demanding requirements of Grade 8 steel hardware, these plain flat washers offer reliable performance in demanding environments. Each piece is manufactured to ensure consistent thickness and roundness for a precise fit.

Enhance your toolkit with these Flat Washers USS Grade 8 Steel Plain Made in USA 5/16 — a smart choice for strength, durability, and American-made quality.