S-90323A331 M5 Shoulder Screws

Key Features & Benefits at a Glance

• Exceptional corrosion resistance with 18-8 stainless steel construction and passivated finish for reliable performance in harsh industrial environments
• Precise alignment and smooth rotation enabled by the precisely machined shoulder with tight diameter tolerance (-0.025 to 0 mm)
• High-strength fastening solution delivering 80,000 psi tensile strength and Rockwell B95 hardness for demanding mechanical applications
• Secure installation with minimal clearance through the low-profile hex socket head requiring only 3mm drive space
• Consistent thread engagement ensured by Class 6g thread fit and coarse M5x0.8 metric threading for quick assembly
• Reduced assembly time with right-hand coarse threading that facilitates rapid installation in production environments
• Environmental compliance assurance meeting RoHS 3 and REACH regulations for global manufacturing requirements

Professional Applications & Engineering Value

This precision shoulder screw delivers critical engineering value in applications requiring exact component alignment and rotational movement. The 18-8 stainless steel construction with passivated finish provides superior corrosion resistance for machinery operating in humid or chemically aggressive environments. The precisely controlled shoulder diameter and length tolerances ensure consistent spacing between components in assemblies, eliminating the need for additional spacing elements. The hex socket low head design allows installation in confined spaces while maintaining high torque transmission capability. These metric shoulder screws are engineered to solve alignment challenges in precision equipment, automation systems, and mechanical assemblies where dimensional accuracy and material durability are paramount for long-term reliability.

Specification Summary & Compliance

This M5 shoulder screw features Class 6g thread fit per metric standards with coarse M5x0.8 threading. 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 from 18-8 stainless steel with Rockwell B95 hardness and 80,000 psi tensile strength. The fastener is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, ensuring suitability for global industrial applications requiring certified components.