There are 10/50pcs hex socket ultra thin head bolt
Description:
Material: 304 (A2-70) stainless steel
Size: d(thread diameter) x L(thread length)
Metric thread diameter:
M2 (2mm) / M2.5(2mm) / M3(3mm) / M4(4mm) / M5(5mm) / M6(6mm)
Metric thread pitch:
0.4mm(M2) / 0.45mm(M2.5) / 0.5mm(M3) / 0.7mm(M4) / 0.8mm(M5) / 1mm(M6)
Thread length: 3mm-30mm