2 NEW SOUTHWEST SPEED CLAMP BRACKETS FOR 1 1/2" ROUND TUBING, LIGHTWEIGHT 7075-T6 ALUMINUM 2 PIECE DESIGN WITH HEX HEAD BOLTS, GREAT FOR MODIFIED, LATE MODEL, STREET STOCK, GRAND NATIONAL, PURE STOCK, FACTORY STOCK, MINI-STOCK, AND SIMILAR RACING APPLICATIONS Two (2) Brand New Southwest Speed Racing Clamp Brackets for 1 1/2" Round Tubing (SWS Part # 800-3142). For 1 1/2" round tubing Lightweight aluminum construction New, 2-piece design with 2 hex head bolts Features two 1/2"-13 threaded mounting holes