Auto Lok Nut Products

Discover the full range of Auto-Lok all-metal self-locking nuts. From classic double-slotted nuts to compact single-slotted versions, slotted ring nuts and specialty designs, this product overview helps you quickly find the right nut for your application.

For high vibration and dynamic loads, the ALNd Double Slotted Standard nut delivers reliable prevailing torque and re-usable locking performance. Compact assemblies benefit from ALNsM Single Slotted H=1D and ALNsL Single Slotted H=0.8D, while ALNsh Single Slotted H=1.3D offers extra thread engagement where a higher nut is possible.

When you need to secure flanges, housings or rotating parts, ALNvsr Vertical Slotted Ring, ALNhsr Horizontal Slotted Ring and ALNhsrf Horizontal Slotted Ring Flange provide stable, all-metal locking without polymers. For quick installation in panels and racks, the Rapid Cage Nut combines fast assembly with durable, serviceable threads.

Our speciality solutions include the ALNsdo Double Slotted Opposite nut for balanced load distribution, ALNvM Spring Retain Nut for consistent clamping under fluctuating conditions, and the ALNtp Two Point Deformed nut for very high resistance to loosening. Together with products like ALNP 12 Point Locking Nut and ALNmj, the Auto-Lok range covers a wide variety of fastening challenges in rail, automotive, energy, machinery and more.