The hand retractable spring plunger is made of high-quality stainless steel, offering high strength, durability, and reliability. The knurled handle design provides a secure, non-slip grip. Stainless steel M6 quick release pins are easy to install and replace. There is no need for sealing patches, threading, or tapping—simply pull and twist the pinhead to lock and release. The plunger spring pin is 1 inch in length with a thread length of 0.5 inch. It is compact, lightweight, and portable, taking up minimal space and suitable for storage in any needed location. These stainless steel M6 quick release pins are ideal for use with rolling toolboxes, molds, chassis, cabs, electrical appliances, industrial equipment, automobiles, and more. **Specifications:** Product name: Knurled plunger spring pins Material: Stainless steel Color: Silver **Package Contents:** 2 x Hand retractable spring plunger Only the above package content is included; other products are not featured. Note: Due to lighting and display differences, the item's color in images may slightly differ from the actual product. Measurement may vary within an allowable error range of +/- 1-3 cm.