1 It is made of cold forged stainless steel with good welding properties. 2. Two separate components are easy to use, using welding tools to make nuts, easy operation, and high rigidity. 3 Typically used for part maintenance. 4 Note:As different shooting and differnent displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 0.3 mm. Specifications: Product Name: Round Welding Nut; Main Color: Silver Tone; Material: 201 Stainless Steel; Thread Size: M6 x 1 mm; Total Size: 0.4 x M6 x 6 mm (D*D*L); Package: 20 x Round Welding Nuts