Flange Lock Nuts

Flange Lock Nuts

Flange Lock Nuts – USS & SAE Thread

Heavy-duty, self-locking flange nuts designed to resist backing off and eliminate the need for washers. Available in both USS and SAE thread types, these nuts are phosphate and oil finished for long-lasting durability.

Features:

  • Self-locking to resist loosening
  • Eliminates need for washers
  • Phosphate & oil finish
  • Available in USS and SAE standards
Thread Type Size Part Number Notes
USS 3/8-16 32-3100
USS 1/2-13 32-3101
USS 5/8-11 32-3102
USS 3/4-10 32-3103
SAE 3/8-24 32-3200
SAE 1/2-20 32-3201
SAE 5/8-18 32-3202
SAE 3/4-16 32-3203 *Non-domestic
Shipping & Stocking Made Simple

At GNS Industrial Supply, we don’t just deliver products—we deliver peace of mind. Unlike traditional suppliers who ship and leave the rest to you, we take a hands-on approach to your inventory management. Our team visits your location, audits your existing stock, identifies what you need, and handles the reordering process for you. We then deliver directly to your facility and restock your supply room according to your preferred system—ensuring your operation runs smoothly without overstock or downtime. It’s a smarter, more personalized way to manage industrial supplies—built for teams who don’t have time to run out of what matters.