[100 PKG] Hi-Collar Split Lock Washers Medium Carbon Steel Plain Made in USA 5/16

Meet the Hi-Collar Split Lock Washer, sized 5/16, crafted in the USA from medium carbon steel with a plain finish. This precision washer delivers reliable locking in vibration-prone assemblies by providing a secure seating and even load distribution along the bolt shank.

Key features

• Design: Hi-Collar split lock for enhanced locking on fastener shanks
• Material: Medium carbon steel
• Finish: Plain (uncoated)
• Size: 5/16 inch
• Origin: Made in USA

Specifications

• Type: Split Lock Washer
• Diameter (nominal): 5/16 in
• Material: Medium Carbon Steel
• Finish: Plain
• Country of Origin: USA

Applications

• Used in automotive, machinery, and general industrial fastenings to resist loosening from vibration and dynamic loads
• Ideal for equipment assemblies where a reliable lock is required without coatings that might affect torque

Tips for best performance: ensure clean seating surfaces, pair with the correct bolt size, and inspect for deformation before reuse. Replace any washer that shows cracks, deformation, or corrosion.