Sturdy to Use: Hand retractable spring plunger is made of quality stainless steel, solid, stable, rust-resistant and not easy to break, which is safe and reliable to serve you for a long time. Tiny and Compact: M6 type release pins are 12.5 mm/ 0.5 inch in thread length, light weight, which can be carried and stored in the tool bag or tool box, without adding any burden or taking up too much space Easy to Install and Release: No threading or tapping required, the spring plunger pin is easy to install, which saves your time and improves your work efficiency. Wide Applications: The stainless steel release pin can be mainly used for rolling tool boxes, molds, chassis, cabins, electrical appliances, industrial equipment, automobiles, etc., which is also suitable for replacing key fob pins for a firmer connection. Replacements Sufficient: You will receive 8 pieces of locking pins to meet daily needs and solve the problem of temporary spare parts. Features: Steel locking pins are