Weld fasteners, nut/washer assemblies, wheel nuts, locknuts, flange nuts and plugs: your best choice for passenger car and truck assembly applications, powertrains, transmissions and chassis. With domestic production and importing capabilities, Decker Manufacturing offer a wide selection of high-quality fasteners and industrial products, ranging from 1/4"-1 1/4" to M5-M24, to give you maximum performance.