Hadlock anti loosening nut is a type of nut with anti loosening function, commonly used in high demand mechanical equipment such as aerospace, automotive, marine and other fields.

The Hadlock anti loosening nut principle is a commonly used fastener, whose main function is to prevent the nut from loosening under vibration or force.

Durable Hardlock Nuts – M8-M48 Threads, Carbon Steel & Stainless Steel (S304/S316), Black/Galvanized

Hardlock Nuts: Available in carbon steel, S304, S316 with M8~M48 threads. Choose black or galvanized surface finish for enhanced durability. Ideal for securing components in machinery, construction, and more.