5PCS Left Hand Thread Bolt M8x18mm Full Threaded Hex Flange Bolts Carbon Steel for Drill Chuck Hand Drill Cutting Machine Silver

Features

• Dimension : M8 x 18mm; Flange Diameter : 18mm; Hex Width : 13mm; Head Height : 7mm;
• Drill chuck left-hand screws is made of carbon steel, which feature is strength and offers good corrosion resistance in bad environment like high temperature, cold weather, and high humidity areas.
• Using high-precision cutting technology, the threads are very precise, clean and sharp, and the deep and clear threads can easily penetrate wood and plastic, ensuring a firm fixation and not easy to deform and slide during use.
• Advantage : Left-hand reverse thread design, the hex head is not easy to slip during the rotation process. The flange part acts as a flat washer, which can be locked more firmly.
• Note : To tighten a reverse threaded screw, please turn it in counterclockwise. The bolt is a standard part and should be measured with a standard vernier caliper.