Haydon Kerk Motion Solutions offers customized nut designs for high-end motion control applications. Precision molded and machined custom nuts create exceptional value for an OEM. Engineers aren't required to source a standard "off the shelf" lead screw nut that "almost" meets application requirements. Precision nuts made from polymers can be molded in just about any shape or with any complex feature imaginable. The standard material used in Kerk polymer-based nuts is self-lubricating polyacetal, which offers dimensional stability, good tensile strength, and is easy to machine. Kerk polyacetal nuts are impregnated with TFE (tetrafluoroethylene) for a permanent, self-lubricating thread contact surface. Kerkite polymers offer a variety of mechanical, thermal, and electrical properties and are compatible with various chemicals and many harsh environmental conditions. The company also produces precision nuts from many alternative plastics, including PEEK (polyetheretherketone), polyester, Torlon PAI (polyamide-imides), Vespel polyimide-based resin, PVDF (polyvinylidene fluoride), Ertalyte PET-P (polyethylene terephthalate), and customer-supplied specialty materials. The supplier also machines precision nuts from bronze, brass, and stainless steel. Thread diameter for custom nut designs ranges from 2mm (5/64-in) up to 24mm (15/16-in). Thread leads are available from as small as 0.30mm (0.012-in) in the smallest diameter (2mm) nut up to a coarse 76.2mm (3.000-in) in the largest diameter (24mm) nut.