S-90269A297 M8 ISO 7379 Shoulder Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with 316 Stainless Steel construction, ideal for harsh industrial environments and extending service life.
• Precise component alignment and spacing ensured by the 100mm shoulder with controlled tolerances, reducing assembly errors.
• High mechanical strength and durability with 70,000 psi tensile strength and Rockwell B79 hardness for reliable performance under load.
• Secure and efficient installation using the 5mm hex socket drive and knurled head, providing excellent grip and torque transmission.
• Accurate and reliable threading with Class 5g6g fit and coarse M8x1.25 thread, ensuring consistent engagement and vibration resistance.
• Compliance with international standards including ISO 7379, RoHS 3, and REACH, guaranteeing quality and environmental safety.
• Versatile right-hand thread design for broad compatibility in machinery, fixtures, and automated systems.

Professional Applications & Engineering Value

This M8 shoulder screw is engineered to address critical challenges in precision assembly and corrosive environments. The 316 Stainless Steel material offers exceptional resistance to chemicals and moisture, preventing failure in applications like marine equipment, food processing machinery, and chemical plants. The 100mm shoulder length with tight diameter tolerance provides a stable pivot or spacer, eliminating misalignment in rotating parts, linkages, and jigs. Combined with the Class 5g6g thread fit and coarse thread pitch, it ensures quick assembly and high vibration resistance, reducing maintenance needs in automated systems and heavy-duty industrial setups. The knurled head and hex drive facilitate easy handling and secure fastening, enhancing productivity in high-volume manufacturing.

Specification Summary & Compliance

This shoulder screw features a Metric M8x1.25 coarse thread with Class 5g6g thread fit per ISO standards, ensuring precise dimensional accuracy. The shoulder diameter is 10 mm with a tolerance of -0.072 to -0.01 mm, and the shoulder length is 100 mm with a 0 to 0.25 mm tolerance for consistent performance. 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 global industrial applications.