Worlds No 1 Security Fasteners

European Patent 1454070

UK Patent No GB 2382853



lockonly nuts

Lock Only Nuts and Bolts
Click on picture to enlarge.

Nuts and Bolts are manufactured in a verity of sizes from M4 to M20 in Metric,

and equivalent in Imperial or any other thread form....

Materials A2, A4, Stainless, Mild Steel, High Tensile Steel.

Key Benefits

  • Lock ONLY for permanent fixing, not removable even with Seclock Tools.
  • Mild Steel nuts and Bolts can be case hardened to stop hack sawing or chiseling in an attempt to remove them, this makes the surface glass hard and gives 30% more torque...
  • Unique design with angles and radiuses to resist griping with pliers or any other form of grips.


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Copyright 2003 Seclock
Last modified: 06/06/07