ITEM NAME:2 Pcs M10 Female Thread Nuts 50mm Plastic Star Head Clamping Knob Grip A9Y3 2 Pcs M10 Female Thread Nuts 50mm Plastic Star Head Clamping Knob Grip A9Y3 Wonderful replacement for your broken one with this Star Knob. Screw on type design for easy install and with surface nice finish for comfortable grip. Widely used for mechanical equipment, instrument and apparatus,food and pharmaceutical industry equipment. Product Name : Clamping Knob Head Diameter : 50mm / 2inch Thread Diameter : 10mm / 0.3inch Total Length : 28mm/1.1inch Color : Silver Tone, Black Material : Metal, Plastic Weight : 104g Package Content : 2 x Clamping Knob Note: Light shooting 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.