Hex socket head cap screw(TKS(Tokosha(Coarse Steel Zinc plated(Silver) 14 X 85 Pitch 2.0

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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.
As a result, the use of hex socket head cap screws enables work in confined spaces and contributes to the miniaturization of machinery.
Their appearance has also led to increasing use in design-oriented applications.

• Hex socket head cap screw TKS Tokosha Coarse pitch
• Nominal diameter (d) M14
• Length under head (ℓ) 85.0
• Pitch (P) 2.0
• Head diameter (dk) Max(1) Nominal 21 Max(2) 21.33 Min 20.67
• Neck diameter (da) Max 15.7
• Body diameter (ds) Max Nominal 14 Min 13.73
• Head height (k) Max Nominal 14 Min 13.57
• Neck fillet (r) Min 0.6
• Hex socket width across flats (s) Nominal 12 Max 12.212 Min 12.032
• Hex socket depth (t) Min 7
• Head chamfer (v) Max 1.4
• ℓ dimension full thread range 55
• *Max(1) Maximum diameter without knurling Max(2) Maximum diameter with knurling