Head Size: 5.5 x 13mm / 0.22" x 0.51" (T*D); Inner Hex Width: 4mm / 0.16"
Made of 40Cr Alloy Steel, has the best comprehensive mechanical properties. Features socket cap head, hex socket drive, black oxide finish. Shoulder Bolt can reduce rotation through locking. Widely used in textile, hydraulic, injection molding, machinery industry in different applications. Specially used for injection mold accessories.