This listing is for four pieces. The BT weld bracket, with its dual-line projections, provides a threaded hole at a right angle to the component to which it is welded. The BT is welded without drilling or punching a hole because it is attached to and not through the surface. The dual-line projections contain the right amount of metal, are uniform in height and length to assure a sound permanent offset thread to which the mating parts can be quickly and firmly attached.
Thread size #10-32
Base length .660"
Hole offset .390"
Material C1010 High-Welding Quality, Low Carbon Steel
Threads Unified Standard Class 2B ASME B 1.1-2003
B 0.125" C 0.595" D 0.390" G 0.094"