Product Name: Thumbscrew;Type: Screw OnHead Diameter: 15mm / 0.6";Male Thread Length: 10mm / 0.39"MaleThread Diameter: M4;Total Height: 21mm / 1.2"Material: Metal,Plastic;Color: Silver Tone, BlackNet Weight: 23g;Wonderful replacement for your broken one with this Thumbscrew.Screw on type design for easy install and with surface nice finish for comfortable grip.Widely used for mechanical equipment,instrument and apparatus.Oil and high temperature resistance, high quality and durable.Package Contents:6pcs xThumbscrewOnly the above package content, other products are not included.Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.