NORD-LOCK — Lock Washers — Wedge Lock Washer, Fits Bolt Size 1/2 in Steel, Plain Finish, 4 PK

NORD-LOCK Lock Washers built for consistent performance in maintenance, inspection, and replacement work.

Quick specs

• Material: Steel
• Finish: Plain
• Color: Silver
• For Screw Size: 1/2 in
• Manufacturer Part Number: 1581
• UPC: -

Product information

• UPC: -
• Country of Origin: Sweden
• Manufacturer Part Number: 1581

Dimensions

• Minimum Inside Diameter: 17/32 in
• Outside Diameter - Minimum: 1 in
• For Screw Size: 1/2 in
• Outside Diameter: 1 in
• Minimum Thickness: 0.13 in
• Maximum Thickness: 0.13 in
• Inside Diameter: 0.53 in
• Assembly Thickness: 1/8 in
• Inside Diameter - Maximum: 17/32 in
• Outside Diameter - Maximum: 1 in

Details

• For Use With: Adhesives, Bolts, Hex Head Cap Screws, Nuts, Socket Head Cap Screws, Washers
• Thickness Tolerance: +/-0.01
• Application: Critical Bolted Joints, Dynamic Loads, Extreme Conditions, High Vibration
• Type: Wedge Lock Washer
• Washer Material Grade: Works with bolts up to class A4-80
• Assembly Thickness Tolerance: +/-0.01 in
• Pack Size: Small Pack
• Lock Washer Type: Wedge Lock
• Dimensional Standards: DIN 25201, RoHS Compliant
• Hardness: 52 HRC
• Metal Detectable: Metal Detectable
• Reusable: Reusable
• FDA Approved: FDA Approved
• X-Ray Detectable: X-Ray Detectable
• CAD Available: Yes
• Item: Wedge Lock Washer
• Material: Steel
• Finish: Plain
• Standards: DIN 25201
• System of Measurement: Inch
• Material Grade/Class: A4-80
• Color: Silver
• Rockwell Hardness: Min 52 HRC Case Hardened

This Lock Washers is intended for professional buyers focused on durability and uptime.

Recommended for planned maintenance programs and well-suited for replacement, upgrade, and stock-room use.

Highlights

• Organized for straightforward purchasing and stocking.
• 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.

Notes: Confirm fit, compatibility, and any site-specific requirements prior to ordering or installation.