Allied Bolt - PART# 1663

• A coiled split circular washer with a slightly trapezoidal wire section.
• Applies greater bolt tension.
• Provides a hardened bearing surface.
• Provides more uniform load distribution.
• Resists loosening caused by vibration and corrosion.
• Manufactured from AISI 1055 Steel.
• Heat treated to a minimum Rockwell Hardness of C35.
• Zinc plated to meet ASTM Specification F1941.
• Washers conform to the dimensions of ASME B18.21.1

Standard Packaging Information