Ultra low head Hex bolt(Coarse Stainless steel Unplated 4X8(Cut Pitch 0.7

These are screws with washers pre-assembled onto them to prevent loosening and bearing surface indentation.
This eliminates the hassle of forgetting to install a washer or dropping and losing one, allowing for improved work efficiency.

• Ultra low head hex bolt coarse pitch
• Nominal thread diameter M4
• Pitch coarse 0.7
• Length under head (ℓ) 8.0
• Width across flats (B) Nominal 7 Tolerance +0,-0.2
• Head height (H) Nominal 1.5 Tolerance ±0.1