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A4 Stainless steel bolt

A4 stainless steel bolts and nuts are made from austenitic stainless steel with 18% chromium and 8% nickel, resistant to severe corrosion in marine and industrial environments. Surface hardness ranges from 200 to 250 HB, with tensile strength of 700–850 MPa. Bolt diameters range from M3 to M36, with standard lengths from 10 to 200 mm. Threads are precision-made according to ISO 898-1, allowing torque loads up to 60% of tensile strength. Natural stainless surface finish increases lifespan and reduces wear.

A4 nuts have precise internal threads and matching surface finish for secure, uniform connections. High-resistance washers can be used for temperature and corrosion protection. This hardware set is suitable for metal structures, marine equipment, industrial machinery, and outdoor projects under harsh weather conditions. High mechanical performance and chemical resistance reduce maintenance and extend structural durability.


Ajax-bolt-nut	021-55429480

Ajax-bolt-nut

Iran

021-55429480

Stainless steel Bolt

The half-thread stainless steel bolt is made from austenitic stainless steel 18Cr-8Ni, suitable for industrial connections, machinery, and corrosion-resistant structures. Bolt diameters range from M4 to M24, with overall lengths from 10 to 150 mm. Surface hardness is 200–250 HV, and tensile strength ranges from 600 to 850 MPa. Threads are only on half of the bolt length to control force distribution and increase connection strength.

Bolt surfaces are polished or coated for corrosion resistance, ensuring high performance in humid and chemical environments. Installation with standard nuts and washers ensures secure and stable connections. These bolts are optimized for marine structures, industrial machinery, pipelines, and construction projects, enhancing service life and reducing maintenance.


Ajax-bolt-nut	021-55429480

pichsazan

Iran

021-55413167

carbon steel bolt size 8 mm

The hexagon screw in dry grade has the highest level of use and popularity in industries. Dry screw size 8 to 24 has a wide range of applications in industries. In fact, dry screws are produced in both hexagonal and iron shapes, and the use of aluminum samples on industrial devices is increasing. 8 mm dry hex screw is produced with class 8.8. This grade of dry screw not only has a higher carbon percentage than iron samples, but also has heat hardening treatment during production.