Screws for Plastics - Type HL

Type HL is a thread forming screw with a double-lead, consisting of a high and low thread. The lower thread varies in height from 1/3 to 1/2 that of the higher thread, which is sharper and flatter than a standard thread. Type HL thread is for use in plastic, nylon or other low-density materials.

Materials - Finish:

• Low Carbon Steel - Zinc Black
• 18 - 8 Stainless Steel - Zinc Clear

* Custom materials and finishes available.