Stainless Steel Cap Nuts

Product  introduction

Stainless steel cap nuts are made of high-quality austenitic stainless steel materials such as 304 and 316, featuring excellent corrosion and oxidation resistance. They can be used for a long time without rusting or corroding in harsh environments like humidity, acid, alkali, and salt fog, effectively protecting bolt connection parts and extending the service life of equipment.​

With a unique cap – type design, the smooth and closed top completely covers the bolt end, not only preventing the intrusion of dust, moisture, and corrosive media, reducing thread wear, but also enhancing the appearance and avoiding scratches on people and items caused by sharp edges. The nuts fit tightly with bolts, with high – precision threads, ensuring a stable connection that is not easy to loosen after tightening.​

Our products come in a wide range of specifications, with thread sizes ranging from M3 to M36, suitable for bolts of different sizes. The surface is polished to a mirror – like finish, combining protection and decoration. Passivation treatment can also be carried out as needed to further enhance corrosion resistance. Widely used in industries with high requirements for cleanliness and aesthetics, such as food machinery, medical devices, shipbuilding, and kitchen and bathroom equipment, our products are manufactured and tested in strict accordance with domestic and international standards like GB and ISO, ensuring reliable quality. We provide professional selection guidance and comprehensive after – sales services, offering customers high – quality fastening and protection solutions.​

Product information

Productname: Stainless Steel Cap Nuts

Grade: A2-70 A4-70 etc.

Material: Stainless Steel

Specification: M3 -M36

Standard: GB/T923 DIN1587