S-90269A711 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
- Exceptional corrosion resistance with 316 stainless steel and black oxide finish, ideal for harsh industrial environments
- Precise shoulder positioning with controlled diameter tolerance (-0.072 to -0.01 mm) for accurate component alignment
- High mechanical strength delivering 70,000 psi tensile and 35,000 psi shear strength for demanding applications
- Secure installation and removal with knurled head and 5 mm hex socket drive preventing tool slippage
- Reliable thread engagement with Class 5g6g metric coarse threads ensuring consistent fastening performance
- Durable surface protection maintaining Rockwell B79 hardness for long-term wear resistance
- Global compliance ready meeting ISO 7379 standards and RoHS 3/REACH regulations for international projects
Professional Applications & Engineering Value
This M8 shoulder screw solves critical alignment challenges in precision assemblies. The 316 stainless steel construction combined with black oxide finish provides superior protection against chemical exposure and oxidation, making it ideal for marine, chemical processing, and outdoor equipment. The knurled head enhances grip during manual adjustments while the hex socket drive ensures high torque transmission without stripping. With its shoulder diameter tolerance controlled within -0.072 to -0.01 mm, it maintains exact component spacing in rotating machinery, automation systems, and precision instruments. The coarse thread design facilitates quick assembly in high-vibration environments where shear strength and positional stability are paramount.
Specification Summary & Compliance
This precision shoulder screw features M8x1.25 mm metric coarse threads with Class 5g6g thread fit per ISO standards. The shoulder maintains -0.072 to -0.01 mm diameter tolerance and 0 to 0.25 mm length tolerance. Manufacturing complies with ISO 7379 specifications, while material and finish meet RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations.
