THREADED SCREWS AND BOLTS OF IRON OR STEEL WHETHER OR NOT WITH THEIR NUTS AND WASHERS (EXCL. COACH SCREWS AND OTHER WOOD SCREWS SCREW HOOKS AND SCREW RINGS SELF-TAPPING SCREWS LAG SCREWS STOPPERS PLUGS AND THE LIKE THREADED) : SOCKET SCREWS
THREADED SCREWS AND BOLTS OF IRON OR STEEL WHETHER OR NOT WITH THEIR NUTS AND WASHERS (EXCL. COACH SCREWS AND OTHER WOOD SCREWS SCREW HOOKS AND SCREW RINGS SELF-TAPPING SCREWS LAG SCREWS STOPPERS PLUGS AND THE LIKE THREADED) : SOCKET SCREWS