Type: Hand Tool Parts colour:black Material:metal size:Full length: 11.2MM (nail pin tightening) Screw length: 7MM Screw diameter: 5MM Left nut diameter: 8MM Right nut diameter: 9.7MM Countersunk head thickness: 2.1MM Pad size: diameter 11.5MM, inner diameter 6MM Package Contents: 100*screw set Only 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.