Description 5 different length screws in the same metric size. Head Type: Button head (rounded, low-profile design). Button Head Socket Bolts Kit Drive Type: Hex socket (internal hex drive for secure tightening). Material: Select from stainless steel or high-tensile steel (don’t know what to pick? check grade info tab). Finish: Kits Currently only available in stainless steel G304 or G316. Thread Type: Fully threaded in the most common pitch, metric coarse (diagram in photos) Grade Engraving Chart (X = No grade markings, ✓ = Has grade markings) M3 M4 M5 M6 M8 M10 M12 Stainless Steel (G304/G316) ✗ ✗ ✗ (✓/✗) ✓ ✓ ✓
