This is a compact and economical index bolt. This type of the index plunger is suitable for a wide range of positioning, locking and locating applications including shop fitting, point of sale and work holding. The all-metal body has either M10 or M12 threads, providing a convenient and secure fitment. Some variants come with a rest position to lock the in the index bolt pin in the retracted position. All-Metal Spring Loaded Index Bolt M12x1.75 with Rest Position