S-90269A289 M8 ISO 7379 Shoulder Screws
Shoulder Screws
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Basic Information
Head Parameters
Dimensions
Thread Parameters
Tip & Drive Parameters
Material & Strength
Temperature & Environment
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Key Features & Benefits at a Glance
- Superior corrosion resistance with 316 Stainless Steel construction, ideal for harsh environments and extended service life
- Precise component alignment enabled by the 35mm shoulder with controlled diameter tolerance for reliable locating and pivoting functions
- High-strength fastening performance offering 70,000 PSI tensile strength and 35,000 PSI shear strength for demanding applications
- Secure, tamper-resistant installation using the internal hex (5mm) drive and knurled head for improved grip during tightening
- Consistent thread engagement with Class 5g6g thread fit and M8x1.25 coarse pitch for quick assembly and vibration resistance
- Durable mechanical properties backed by Rockwell B79 hardness, ensuring wear resistance and dimensional stability
- Global compliance and reliability meeting ISO 7379 standards and environmental regulations (RoHS 3, REACH) for safe use
Professional Applications & Engineering Value
This 316 Stainless Steel shoulder screw is engineered to address critical alignment and corrosion challenges in precision assemblies. The 35mm shoulder length with a tight diameter tolerance provides an exact locating surface for gears, bearings, and linkages, eliminating misalignment and reducing wear. The M8x1.25 coarse thread and Class 5g6g thread fit ensure rapid, secure fastening in high-vibration environments like robotics, conveyor systems, and automotive fixtures. With its corrosion-resistant properties and hex socket drive, it offers reliable performance in marine, chemical, and food processing applications, minimizing maintenance and downtime.
Specification Summary & Compliance
This shoulder screw adheres to ISO 7379 specifications, featuring a Class 5g6g thread fit for metric coarse threads (M8x1.25). The shoulder diameter tolerance is -0.072 to -0.01 mm, and shoulder length tolerance is 0 to 0.25 mm, ensuring precise dimensional control. It is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, confirming its suitability for environmentally conscious and industrial safety standards.
