The Construction Shop provides the most common stud welding items use in construction. IWT’s Headed Concrete Anchors (HCA) and Shear Connector (SA) are made in the USA to ASTM A108/A29 specification using domestic steel. Our HCA and Shear Connector are sold in box quantities only . Other sizes and bulk pricing are available. Please contact us with your requirements. ORDERS PLACED FOR HEADED CONCRETE ANCHORS OR SHEAR CONNECTOR WILL REQUIRE A PREFERED CARRIER AND ACCOUNT NUMBER