A trilobular screw has a slightly triangular cross section. As it drives in, the lobes form the thread and the material flows back around it.

The result is lower drive torque and a joint that resists loosening under vibration. ASL offers a wide range of trilobular thread forming screws for the plastics and metal industries.

Tell us the material, hole size and quantity and we will quote. Tel 01978 823 900.