S-91273A424 M8 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 18-8 stainless steel construction, ideal for harsh industrial environments.
- Precise component alignment ensured by the 10mm shoulder length with tight tolerance, minimizing assembly play.
- High mechanical strength with 70,000 psi tensile and 35,000 psi shear strength for reliable load-bearing applications.
- Secure and non-slip installation thanks to the knurled socket head and 4mm hex drive for firm tool grip.
- Accurate and consistent threading with Class 5g6g fit and M8x1.25 coarse pitch for quick, stable fastening.
- Durable long-term performance supported by Rockwell B55 hardness, resisting wear and deformation.
- Compliance with global standards including RoHS 3 and REACH, ensuring safe and sustainable use.
Professional Applications & Engineering Value
This M8 shoulder screw is engineered to address critical alignment and durability challenges in industrial applications. The 18-8 stainless steel material provides excellent resistance to rust and corrosion, making it suitable for machinery, automotive assemblies, and electronic enclosures exposed to moisture or chemicals. The precision shoulder diameter tolerance of -0.04 to -0.01 mm ensures a snug fit in mating parts, reducing vibration and misalignment. Combined with a coarse thread pitch and Class 5g6g thread fit, it allows for rapid installation and secure holding in high-stress environments. The knurled socket head enhances grip during torque application, minimizing slippage and improving assembly efficiency in automated or manual settings.
Specification Summary & Compliance
This metric shoulder screw features an M8x1.25 thread with Class 5g6g thread fit per ISO standards, ensuring dimensional accuracy. The shoulder diameter tolerance is tightly controlled at -0.04 to -0.01 mm, and shoulder length tolerance is 0 to 0.25 mm for consistent performance. Manufactured in compliance with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, it meets environmental and safety requirements for industrial use.
