10/50pcs M1.6 M2 M2.5 M3 M4 M5 M6 M8 Black Grade 10.9 Steel ISO7380 Hexagon Hex Socket Head Button Mushroom Allen Bolt Screw

There are 10/50pcs hex socket button head bolt

Item Description

Material: 10.9 grade steel

Size:  d(thread diameter) x L(thread length)

Metric thread diameter: 

M1.6 (1.6mm) / M2(2mm) / M2.5(2.5mm) / M3(3mm) / M4(4mm) / M5(5mm) / M6(6mm) / M8(8mm)

Metric thread pitch:

0.35mm (M1.6) / 0.4mm(M2) / 0.45(M2.5) / 0.5mm(M3) / 0.7mm(M4) / 0.8mm(M5) / 1mm(M6) / 1.25mm(M8)

Thread length: 3mm-100mm