S-90278A429 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 from 18-8 stainless steel construction, ideal for harsh industrial environments
- Precise component alignment with 45mm shoulder length and controlled shoulder diameter tolerance for stable assemblies
- High-strength performance delivering 70,000 psi tensile strength and Rockwell B55 hardness for demanding applications
- Reliable thread engagement with Class 6g thread fit and coarse 1.25mm pitch for quick assembly and vibration resistance
- Secure installation using standard 5mm hex socket drive for high torque application without cam-out
- Smooth head profile with 14mm diameter providing flush mounting and reduced snagging risks
- Environmental compliance meeting RoHS 3 and REACH standards for global manufacturing requirements
Professional Applications & Engineering Value
This precision shoulder screw delivers exceptional engineering value in applications requiring accurate component positioning and rotational control. The M8 x 1.25mm coarse thread configuration ensures rapid assembly while maintaining secure fastening in vibrating environments. Manufactured from 18-8 stainless steel, it provides excellent corrosion resistance for machinery, automation systems, and outdoor equipment. The 45mm shoulder length with precise diameter control acts as a reliable pivot point or spacer in assemblies, eliminating the need for additional bushings. The hex socket head design allows for high-torque installation in confined spaces, making it ideal for precision instruments, conveyor systems, and robotic mechanisms where dimensional accuracy and durability are critical.
Specification Summary & Compliance
This metric shoulder screw features M8 thread size with 1.25mm coarse pitch and Class 6g thread fit per ISO standards. The shoulder maintains precise dimensional control with diameter tolerance of -0.025 to 0 mm and length tolerance of 0 to 0.05 mm. Manufactured to industry specifications with Rockwell B55 hardness and 70,000 psi tensile strength. Compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations for global manufacturing applications.
