Definition -A Slotted Nut is a threaded nut with slots cut into one end, allowing it to be locked in place using a cotter pin or split pin. Its purpose is to prevent loosening under vibration while maintaining secure fastening. Slotted nuts are commonly used in bearings, shafts, automotive assemblies, and industrial machinery.

Sunmach is an international manufacturer of high-accuracy Slotted Nuts, produced using premium Nickel Alloys and Stainless Steel materials. All nuts are manufactured exactly to customer drawings and dimensional tolerance standards. These precision components are engineered for critical industrial applications requiring reliable performance.

We are an ISO 9001:2015 certified company, demonstrating our commitment to rigorous quality standards and consistent product excellence to deliver the best of the Nickel Alloys & Stainless Steel Slotted Nut.

We make these Slotted Nut from a range of high-performance & exotic materials such as : Hastelloy® C-276, Hastelloy® C-22, Hastelloy® B-2, Monel® 400, Monel® K-500, Inconel® 600, Inconel® 625, Inconel® 718, Titanium Grade 2, Titanium Grade 5, Titanium Grade 7, Duplex S31803, Duplex S32205, Super Duplex S32750 to various Stainless Steel grades of SS 304L, SS 316L SS 310, SS 310H, SS 347H, etc followed by Special Stainless Steel Grades such as 904L Stainless Steel, UNS N08904, DIN EN1.4539 Nitronic® 50, Nitronic® 60, UNS S21800, DIN EN, 254 SMO, UNS S31254, DIN EN 1.454, Stainless Steel 410 & Stainless Steel 420 etc.

Sunmach’s extensive manufacturing capabilities and In-Stock Genuine & Authentic Raw Material availability allows us to support demanding industrial requirements with durable, corrosion-resistant, heat resistant & reliable Shafts made from Genuine Nickel Alloys and Stainless Steel Material, delivered dot in time to any corner of the world, supported by all required test certificates and with 100% traceability.