Metric Socket Head Cap Screw Black-Oxide Alloy Steel Partial Thread M36 * 4.0 * 140MM, Grade 12.9 [Allen Key] nom_diam_13-16 About 20%stronger than high-strength steel

About 20%stronger than high-strength steel locknuts

The nylon insert grips the bolt to resist loosening without damaging threads

The screw has a length of 3/4" and a thread of 3/8-16

The screw has a length of 3-1/2" and a thread of 5/16-18

Metric Socket Head Cap Screw Black-Oxide Alloy Steel Partial Thread M36 * 4.0 * 140MM, Grade 12.9 [Allen Key] nom_diam_13-16 About 20%stronger than high-strength steelThis socket head cap screw is 140 mm long and has a M36 * 4. 0 mm thread [partially threaded]. Made of black oxide alloy steel, it offers slight corrosion resistance in dry conditions. The cup point and 12. 9 grade increase its compressive strength and provide a tensile strength and hardness of 170,000 psi Rockwell C39. In addition, it has a shear strength of 102,000 psi. ISO Metric Pitch Coarse threads are an industry standard. These screws are