Durable Material: The retractable pin is made of high-quality stainless steel material/zinc steel finish plunger body, which has high strength, is not easy to wear, is resistant to seawater, and is durable. Spring Pin Latch: The indexing plunger is used to prevent any locking position caused by lateral force, and has a stationary position. The new locking position can only be set after manual disconnection. Improving Efficiency: Installing these marine quick release pins saves time and effort, greatly improving your work efficiency and making them practical accessories suitable for the machinery industry. Easy To Carry: The spring lock is compact, lightweight, easy to carry, and does not take up too much space when stored. Perfect replacement of damaged mechanical parts. Wide Application: Stainless steel Positioning pins are widely used in ship outfitting, shipbuilding, etc., mainly for molds, chassis, cabinets, industrial equipment, electrical appliances, etc. Goods Description Spring plunger Made of stainless steel material, these spring pin latches are wear resistance, durable and safe for long time to use, mainly can be applied in cabin, industrial equipment, automotive and more.indexing plunger with rod Easy to use, can greatly save your time and efforts. Specifications: Product Type: Stainless steel spring plunger Material:Stainless steel, Zinc  Size:M6, M10, M12 Package List 4 x Spring Plungers