Hex nuts and special nuts for industrial fastenings

Nuts are a key component in industrial fastening systems, providing secure and reliable solutions for a wide range of applications, from mechanical engineering to metal construction, plant installations, and civil engineering. Their design ensures resistance to mechanical stresses, vibrations, and dynamic loads, even in the most demanding conditions.

BULL-VIT offers a complete range of nuts, categorized as follows:

• Hex nuts:
   - high hex nuts (UNI 5587, ASTM A194 2H) – designed for applications requiring high strength, their increased height allows for uniform load distribution.
   - medium hex nuts (UNI 5588, DIN 934) – considered the standard solution for precision fastening, they offer a balance between mechanical resistance and compactness.
   - low hex nuts (UNI 5589, DIN 936) – ideal for lightweight or aesthetic fastening applications where space is limited.

• Special nuts:
   - self-locking nuts (UNI 7473, DIN 982 and UNI 7474, DIN 985) – equipped with a nylon insert, they provide excellent resistance to vibrations and are available in both high and low versions.
   - left-hand thread nuts (UNI 5588, DIN 934) – specifically designed for reverse-locking applications, these nuts are supplied in raw steel with left-hand metric threading.
   - flanged nuts (DIN 6923, ISO 4161) – Featuring an integrated serrated base, these nuts ensure even distribution of clamping force, eliminating the need for washers.
   - cap nuts (UNI 5721, DIN 1587) – also known as blind nuts, and acorn nuts, they feature a domed cap to protect the threading from external elements, and also offer a refined design. Available in steel, stainless steel, and brass.
   - wing nuts (UNI 5448, DIN 315) – designed for manual tightening without the need for tools.
   - coupling nuts – used for connecting threaded rods or structural components.

BULL-VIT’s nuts are available in a variety of materials to meet specific requirements, including high-strength steel (CL8 and CL10), A2 and A4 stainless steel, brass, and special alloys. Finishes include raw or white zinc-plated versions, offering effective protection against oxidation and wear, extending the lifespan of fastenings even in harsh environments.

BULL-VIT provides nuts in a wide range of standard sizes, with diameters from M2.5 to M56. The threading is ISO metric, available in both coarse and fine pitch, ensuring full compatibility with standard bolts and threaded rods. All products strictly comply with international UNI, DIN, and ISO standards, guaranteeing quality and reliability for every application.

Each nut is supplied with 2.1 compliance certificates, ensuring full traceability of materials and compliance with the most stringent technical requirements, even for critical applications.

For further technical details or to request a customized quote, contact BULL-VIT using the provided references.