S-90318A980 M6 Shoulder Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with 316 Stainless Steel construction for reliable performance in harsh industrial environments
• Precise component alignment through 16mm shoulder length with tight tolerances for reduced assembly vibration and wear
• High-strength fastening solution delivering 70,000 psi tensile strength and 35,000 psi shear strength for demanding applications
• Secure installation and removal with 4mm hex drive socket head design requiring minimal clearance space
• Consistent thread engagement with Class 6g thread fit ensuring reliable mating with corresponding components
• Enhanced durability with Rockwell B70 hardness providing excellent resistance to deformation under load
• Regulatory compliance assurance meeting RoHS 3 and REACH standards for environmentally responsible manufacturing

Professional Applications & Engineering Value

This precision shoulder screw delivers exceptional engineering value in applications requiring exact component positioning and alignment. The 316 stainless steel construction provides outstanding corrosion resistance, making it ideal for chemical processing, marine environments, and food equipment where moisture exposure is common. The ultra-low socket head design with 4mm hex drive allows for installation in confined spaces while maintaining high torque capability. The 16mm shoulder length with precise fit tolerance ensures accurate radial positioning of moving parts in machinery, reducing bearing wear and preventing misalignment in precision assemblies. The M6 coarse thread with Class 6g fit provides reliable engagement in both metallic and composite materials, while the generous 11mm thread length accommodates various material thicknesses. This combination of features solves critical alignment and corrosion challenges in industrial automation, precision machinery, and rotating assembly applications where dimensional stability and long-term reliability are paramount.

Specification Summary & Compliance

This metric shoulder screw features M6x1mm coarse threads with Class 6g thread fit per ISO standards, ensuring proper clearance for reliable assembly. The precision shoulder maintains tight dimensional control with shoulder diameter tolerance of -0.025 to 0 mm and shoulder length tolerance of 0 to 0.05 mm. Manufactured from 316 stainless steel with Rockwell B70 hardness, the fastener delivers 70,000 psi tensile strength and 35,000 psi minimum shear strength. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, meeting the latest environmental and safety standards for industrial components.