S-90263A285 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 316 Stainless Steel and passivated finish for extended service life in harsh environments
- Exceptional mechanical strength with 70,000 psi tensile strength and Rockwell B79 hardness for reliable load-bearing performance
- Precise alignment and positioning enabled by the 25mm shoulder with tight diameter and length tolerances
- Secure hex drive engagement with 5mm socket head for easy installation and high torque transmission
- Consistent thread performance with Class 6g fit and coarse M8x1.25 thread for vibration resistance and quick assembly
- Broad regulatory compliance meeting RoHS 3 and REACH standards for global industrial applications
- Optimized for mechanical assemblies combining smooth head texture and standard socket profile for flush mounting
Professional Applications & Engineering Value
This M8 shoulder screw delivers critical engineering solutions where precise rotational alignment and axial positioning are paramount. Manufactured from 316 Stainless Steel with a passivated finish, it resists chemical degradation in marine, pharmaceutical, and food processing equipment. The 25mm shoulder with precise tolerances acts as a pivot point or bearing surface in machinery, eliminating the need for additional spacers. Its Class 6g thread fit and coarse thread pitch ensure rapid assembly while maintaining vibration resistance in dynamic systems. The socket head hex drive allows high-torque installation in confined spaces, making it ideal for robotics, conveyor systems, and precision instrument manufacturing where reliability and corrosion resistance are non-negotiable.
Specification Summary & Compliance
This metric shoulder screw features M8x1.25 coarse threads with Class 6g thread fit per ISO standards. The shoulder maintains precise dimensions with diameter tolerance of -0.025 to 0 mm and length tolerance of 0 to 0.05 mm. Mechanical properties include Rockwell B79 hardness and 70,000 psi tensile strength. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring environmental safety in industrial applications.
