Hex socket head cap screw(Ansco(Coarse Steel Trivalent black(Black) 6 X 12 Pitch 1.0

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This is a bolt with a cylindrical head featuring a hexagonal socket.
Tightening is performed using a hex key (Allen wrench). Although classified as a bolt, it is most commonly used without a mating nut.
It is also known as a cap screw or socket screw. Spanners and wrenches with jaws used to tighten hex bolts require clearance space around the work area, whereas a hex key requires no such clearance.
For this reason, the use of hex socket head cap screws enables work in confined spaces and contributes to the miniaturization of machinery.
Due to their appearance, they are increasingly being used for decorative purposes as well.

• Hex socket head cap screw Ansco Coarse pitch
• Nominal diameter (d) M6
• Length under head (l) 12.0
• Pitch (P) 1.0
• Thread length (b) Reference 24
• Head diameter (dk) Max Without knurling 10.00 Max With knurling 10.22 Min 9.78
• Neck diameter (da) Max Nominal 6.80
• Body diameter (ds) Max Nominal 6.00 Min 5.82
• Head height (k) Max 6.00 Min 5.70
• Neck fillet (r) Min 0.25
• Hex socket width across flats (S) Nominal 5.0 Max 5.14 Min 5.02
• Hex socket depth (t) Min 3.0
• Head chamfer (v) Max 0.6