Fast Clamp Sway Brace, Carbon Steel, Nominal Conduit/Pipe/Threaded Rod 1-1/4 in, Length 3 in, Width 2 3/8 in, Plain Finish, For Use With Schedule 10 thru 40 IPS, Description/Special Features Field Adjustable, Leaf Spring Insert, Standards cUL, FM, TOLCO, UL.