M6 Phillips Drive Pan Head Thread Forming Screws Harden Steel Zinc Plated

M6 Phillips Drive Pan Head Thread Forming Screws Harden Steel Zinc Plated Fastener

Thread rolling screw is also named as thread forming screw or taptie screw , it has a triangle shape thread that from point to 1/3 of the threaded length . this triangle design can stop screw to back out and secure material more tightly .