S-90323A491 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
- Exceptional corrosion resistance with 18-8 stainless steel construction and passivated finish, ideal for harsh industrial environments
- Precise component alignment ensured by the 10mm shoulder diameter with tight tolerance for reduced vibration and wear
- High-strength performance delivering 80,000 psi tensile strength and Rockwell B95 hardness for reliable load-bearing applications
- Space-saving low-profile socket head with 5mm hex drive allows for easy installation in confined spaces
- Accurate thread engagement with Class 6g fit and coarse M8x1.25 thread for quick assembly and secure fastening
- Durable shoulder design featuring a 30mm length with minimal tolerance for consistent positioning in machinery
- Regulatory compliance meeting RoHS 3 and REACH standards for safe use in global markets
Professional Applications & Engineering Value
This M8 shoulder screw is engineered to address critical alignment and durability challenges in precision assemblies. The 18-8 stainless steel material, combined with a passivated finish, provides superior resistance to corrosion and oxidation, extending service life in demanding conditions like automation equipment and medical devices. The low-profile socket head with a 5mm hex drive facilitates easy access in tight spaces, while the precise shoulder diameter and length ensure accurate component positioning, reducing misalignment and mechanical failure. With its coarse metric thread and high tensile strength, it offers reliable performance in dynamic applications, from conveyor systems to electronic enclosures, minimizing maintenance downtime.
Specification Summary & Compliance
This shoulder screw adheres to metric system standards, featuring an M8x1.25 coarse thread with Class 6g thread fit for consistent engagement. The shoulder diameter tolerance is -0.025 to 0 mm, and shoulder length tolerance is 0 to 0.05 mm, ensuring high precision. It complies with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, confirming its suitability for industrial and commercial use without hazardous substances.
