Profile: Shackelford-Wattner is a division of Texas Custom Builders, Ltd. and engaged in inspecting, repairing and replacing couplings. We offer services for turbo machinery industry to get quick, accurate & complete support of couplings and coupling related products. Our product line includes precision high-speed gear couplings, diaphragm coupling parts & disc coupling parts, standard couplings and API 671 special purpose couplings.