Caterpillar style 3/4" x 8" x 7' curved, heat treated, 15 hole grader blade; takes 15 of a 5/8" x 2 3/4" (625x275) plow bolts and 15 - 5/8" (625 hex nut) hex nuts; Use Item # 5D-9559. Quality aftermarket cutting edges for Caterpillar (CAT), JCB, Bobcat,...