Hex socket head cap screw P=3(Coarse Steel Trivalent white(Silver) 2 X 10

This is a bolt with a hexagonal socket in a cylindrical head. Tightening is performed using a hex key (Allen wrench).
In most cases, it is used without a nut. It is also known as a cap screw or socket screw.
When fastening a hex bolt, a wrench requires working space, whereas a hex key does not.

Cap Bolt　
Hex Socket Head Cap Screw Encyclopedia
Cap Bolt　P=3

• Hex socket head cap screw P=3 Coarse pitch
• P=3 (With spring washer + JIS washer)
• Nominal thread diameter M2
• Length under head (L) 10.0
• Coarse pitch 0.4
• Head diameter (dk) Nominal 3.8 Max 3.98 Min 3.62
• Head height (k) Nominal 2 Min 1.86
• Hex socket width across flats (s) Nominal 1.5 Max 1.58 Min 1.52
• Hex socket depth (t) Min 1
Flat washer (D x t) 6 x 0.4 Spring washer (d) Max 3.9 Spring washer (b x t) 0.9 x 0.5 Incomplete thread section Max 2.0 Partial thread range - Partial thread length - * Full thread length = L dimension - Incomplete thread length