Double-ended Bolts with Left-hand and Right-hand Threads
Double-ended bolts with Left-hand and Right-hand threads are also known as stretch screws or adjusting screws. The core design is a metal frame with a threaded left-hand hole (LH) on one end, and a threaded right-hand hole (RH), on the other. Then, eyebolts or hooks or jaws can be screwed in each end. Are You…