- The screw thread system with a perfect anti-loosening function. When fasteners are joined together with a specially threaded fastener, which has the anti-loosening screw thread on one of the bolt and nut, the loosening of bolts and nuts during vibration and impact is prevented.

- The screw thread of anti-loosening consists of two tangential parts to induce double contact point locking with the other object with a common screw thread. It maximizes the friction force between the bolt and nut screw threads double contact points and performs and anti-loosening function.

Anti-loosening function when it is joined with fasteners with a common screw thread(Anti-loosening bolt and common nut, Anti-loosening nut and common bolt)

• Passed the maximum vibration test (NASA Standard: NAS 3350)

• Completed the anti-loosening function lest that measures the change in axial force 

• Obtained the world’s first DNV·GL classification certification for fasteners

• Low unit price(same manufacturing processes the common bolts and nuts excluding dies, tap

   and bite the form the anti-loosening bolt screw thread)

• Wide range of applications (applicable regardless of the shape, material and plating of products)

All measurement under ANSI/ASME including other specification can be customized upon customer's request.

According to MOQ as well as specification of Bolt & Nut unit price are vary.