S-90265A348 M8 ISO 7379 Shoulder Screws

Key Features & Benefits at a Glance

• Corrosion-resistant 18-8 stainless steel construction ensures long-term reliability in harsh environments, reducing maintenance and replacement costs.
• High tensile strength of 70,000 psi provides dependable load-bearing capacity for demanding mechanical assemblies.
• Precision Class 5g6g thread fit guarantees smooth, secure fastening with minimal play, enhancing assembly accuracy.
• Hex socket drive with knurled head allows for easy, slip-resistant installation using standard tools, improving workflow efficiency.
• Durable Rockwell B83 hardness offers excellent wear resistance, extending service life under repetitive stress.
• ISO 7379 compliance ensures dimensional consistency and interchangeability in global engineering applications.
• RoHS 3 and REACH environmental compliance supports sustainable manufacturing and safe use in regulated industries.

Professional Applications & Engineering Value

This M8 shoulder screw is engineered to address critical alignment and pivot point challenges in industrial machinery, automation systems, and precision equipment. The 12mm shoulder diameter and 40mm shoulder length provide a stable, unthreaded bearing surface that prevents component misalignment and reduces wear on mating parts. Made from 18-8 stainless steel, it resists corrosion from moisture, chemicals, and outdoor exposure, making it ideal for food processing, marine, and pharmaceutical applications. The coarse 1.25mm pitch thread ensures quick assembly and high vibration resistance, while the hex socket drive facilitates tight spaces installation. By combining high-strength performance with ISO 7379 standards, this screw delivers reliable rotational control and longevity in dynamic load conditions.

Specification Summary & Compliance

This shoulder screw features a Class 5g6g thread fit per metric standards, ensuring precise tolerance for secure fastening. The shoulder diameter tolerance is -0.072 to -0.01 mm, and shoulder length tolerance is 0 to 0.25 mm, providing consistent dimensional accuracy. It complies with ISO 7379 for dimensional and mechanical properties, and meets RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, confirming its suitability for eco-conscious and regulated industrial use.