S-90265A311 M8 ISO 7379 Shoulder Screws

Key Features & Benefits at a Glance

• Corrosion-resistant 18-8 Stainless Steel ensures long-term durability and reliable performance in harsh or wet industrial environments.
• Precision 65mm shoulder length with tight tolerances provides accurate alignment and spacing for components, reducing assembly errors.
• High tensile strength (70,000 psi) and Rockwell B83 hardness offer superior load-bearing capacity and resistance to deformation under stress.
• Knurled socket head with 5mm hex drive enhances grip and torque application, preventing tool slippage during installation.
• Class 5g6g thread fit and M8x1.25 coarse pitch ensures smooth, secure fastening and compatibility with standard metric components.
• Compliance with ISO 7379, RoHS 3, and REACH guarantees adherence to international quality and safety standards for global applications.
• 10mm shoulder diameter with precise tolerance control maintains consistent fit and reduces wear in dynamic assemblies.

Professional Applications & Engineering Value

This M8 shoulder screw is engineered to address critical alignment and stability challenges in precision machinery, automation systems, and assembly jigs. The 65mm shoulder length acts as a precise pivot or spacer, minimizing misalignment and vibration in rotating parts. Made from 18-8 stainless steel, it resists corrosion and maintains integrity in demanding conditions like manufacturing or outdoor equipment. The coarse thread pitch (1.25mm) and Class 5g6g thread fit enable quick, reliable fastening, while the knurled socket head with hex drive ensures secure tool engagement, reducing installation time and improving safety in high-torque applications. Ideal for use in robotics, conveyor systems, and fixture designs where dimensional accuracy and durability are paramount.

Specification Summary & Compliance

This shoulder screw features a metric M8x1.25 thread with Class 5g6g fit for standard tolerance, a shoulder diameter of 10 mm (tolerance: -0.072 to -0.01 mm), and shoulder length of 65 mm (tolerance: 0 to 0.25 mm). It meets ISO 7379 manufacturing specifications and is compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring environmental safety and material reliability.