尖头T形螺栓 T-head bolt with double nib

方颈T形螺栓 T-head bolt with square neck

T形槽和相应螺栓 T-slots and corresponding bolts ; T-slots and corresponding bolts ICS ; T-slots and corresponding boltsICS

带双凸边的T形头螺栓 T-head bolts with double nib