Free fastener CAD blocks in DWG format: metric hex head, hex socket, flange and square neck bolts, hex, jam, slotted and flange nuts, pan, flat and oval head screws, flat washers, and the matching clearance, tapped, counterbore and countersunk holes. Drawn in plan and side view from M2 to M48 and labelled by size, ready to drop into steel detailing and shop drawings.