5/16" Thread standard UNC (coarse) Material Alloy steel
and stripped drain plug removal
component removal
try a left-hand drill bit first — the counter-clockwise cutting action often backs the bolt out on its own while you're still drilling
If you're unsure which type your application uses
24 Hole Metric Socket Cap Screw Assortment Grade 12.9 Pitch_09 5/16" Thread standard UNC (coarse)When you're bolting a die section into a press, connecting hydraulic manifold blocks, or fastening a tooling plate that will see repeated impact loads, Grade 12. 9 socket cap screws are typically what the job calls for. This assortment covers M6, M8, M10, and M12 in alloy steel with black oxide finish, organized across a labeled 24 hole large metal drawer. What's Included Grade 12. 9 metric socket head cap screws M6, M8, M10, and M12 diameters,