Belleville Disc Spring: 2" ID, 1/4" OAH, 4" OD MPN:MB4000-125

The Thread Forming Tap boasts versatility for machinists catering to diverse industry requirements ranging from small manufacturing enterprises or aviation operations; thanks to its UNF size 1/4-28 specification ensuring compatibility across a wide range of materials from aluminum to mild steel while maintaining precise thread forms. Made from top-notch high-speed steel material, this tap delivers excellent durability and strength during thread formations in through-hole or blind holes on castings or extruded components with minimal chipping or breaking risks even at varying angles for improved efficiency in aviation, medical device production lines or automotive industries that require robust performance from their taps. A bright finish contributes to effortless chip extraction while allowing visual inspection of the thread geometry prior to assembling, preventing costly rework time when accuracy matters most.