Thomas & Betts 1278 Fittings Pipe Strap Brand: Thomas & Betts. Part Number: 1278. T&B Pipe Strap, 1 in Conduit, Through Hole Mount, For Use With: Rigid/IMC Conduits, Malleable Iron, Electro Galvanized, 3 in L x 3/4 in W x 1-17/32 in H. Additional Description: TB -1278 1IN ELECTROGALV IRON PIPE STRAP. Catalog Description: 1 Inch, Pipe Strap, Malleable Iron, Electro Galvanized Finish for Use with Rigid/IMC Conduit..