M420 BHA2MCS100-

TR FASTENINGS  M420 BHA2MCS100-  凹头螺丝, 圆头六角, 不锈钢, 20 mm, M4, 100只

The is a M4 x 20mm metric hex button head Socket Screw made of steel.

e络盟:
凹头螺丝, 圆头六角, 不锈钢, 20 mm, M4, 100只

Newark:
# TR FASTENINGS  M420 BHA2MCS100-  SCREW SOCKET, BUTT, S/S, A2, M4X20