Flat Washer, Fits Bolt Size 5/16 in , Steel Zinc Plated Finish, 100 PK

CONTRACTOR SELECT — General Washers — Flat Washer, Fits Bolt Size 5/16 in , Steel Zinc Plated Finish, 100 PK

CONTRACTOR SELECT General Washers built for consistent performance in maintenance, inspection, and replacement work.

Quick specs

• Material: Steel
• Finish: Zinc Plated
• Color: Silver
• For Screw Size: 5/16"
• Manufacturer Part Number: U38400.031.0001
• UPC: -

Product information

• UPC: -
• Country of Origin: Multiple
• Manufacturer Part Number: U38400.031.0001

Dimensions

• Maximum Thickness: 0.063 in
• Inside Diameter: 0.344 in
• Outside Diameter Tolerance: 0.618-0.655
• Inside Diameter Tolerance: 0.339-0.359
• For Screw Size: 5/16"
• Outside Diameter: 5/8 in
• Minimum Thickness: 0.063 in

Details

• CAD Available: Yes
• Item: Flat Washer
• Material: Steel
• Finish: Zinc Plated
• Standards: ASME B18.22.1
• System of Measurement: Inch
• Color: Silver
• Rockwell Hardness: 140HV
• Thickness Tolerance: 0.051-0.08
• Type: Flat Washer
• Made in North America: Not Made in North America
• Dimensional Standards: ASME B18.21.1
• Removable: Removable
• Manufacturer Location: Globally Sourced
• Pack Size: Small Pack
• Material Quality Standards: Not Rated
• Maximum Temperature: 350 Degrees C
• RoHS Compliant: RoHS Compliant
• Minimum Temperature: -58 Degrees C
• REACH Compliant: REACH Compliant
• Material Grade/Class: Grade 2
• Hardness: 140 HV

This General Washers is well-suited for replacement, upgrade, and stock-room use.

Recommended for maintenance and repair workflows and designed to support reliable operation in demanding environments.

Highlights

• Suitable for maintenance, repair, and project-based procurement.
• Helps keep specifications consistent across replacements and replenishment cycles.
• Designed for professional use where predictable fit and handling are important.
• Works well in standardized part lists and preventative maintenance schedules.

Notes: Verify measurement standards, tolerances, and compatibility with existing assemblies before purchase.