Base and washer + HELICOIL® Screwlock

= HELICOIL® locknut collar nut version with washer

Method / principle

Locking is achieved by one or more polygonal threads of the HELICOIL^®Screwlock. They exert a clamping effect on the flanks of the inserted screw, creating an elastically resilient frictional locking. The resulting clamping torques are comparable with those specified in ISO 2320 or can be adjusted individually.

Applications

HELICOIL^® locknuts are used in engine exhaust systems in the automotive industry, in mechanical engineering, in construction machinery, rail vehicles and agricultural machinery.

Advantages

· Equal clamping torque with repeated usage

· Uniform load and stress distribution

· High thermal stability

· Constant thread friction

· Reduced residual dirt