S-90318A710 M3 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 4mm shoulder length with tight tolerances for accurate mechanical assemblies
• Space-saving installation with ultra-low socket head design enabling flush mounting in constrained applications
• Enhanced thread reliability with Class 6g fit ensuring consistent engagement and vibration resistance
• High mechanical strength delivering 70,000 psi tensile strength and Rockwell B70 hardness for demanding applications
• Secure fastening operation with 2mm hex drive providing positive torque transmission and reduced stripping risk
• Regulatory compliance assurance meeting RoHS 3 and REACH standards for global industrial applications

Professional Applications & Engineering Value

This M3 shoulder screw delivers exceptional engineering value through its 316 stainless steel composition and precision manufacturing. The ultra-low socket head with 2mm hex drive solves critical space constraints in compact assemblies while maintaining accessibility for maintenance. The precisely controlled 4mm shoulder length with tight diameter tolerance ensures accurate component positioning in rotating mechanisms, bearing mounts, and precision instruments. The Class 6g thread fit and coarse thread spacing provide reliable engagement in vibration-prone environments, making these metric shoulder screws ideal for industrial automation, medical devices, and electronic enclosures where dimensional stability and corrosion resistance are paramount.

Specification Summary & Compliance

This precision shoulder screw features M3x0.5mm metric thread with Class 6g thread fit per ISO standards, ensuring dimensional accuracy and interchangeability. The shoulder diameter maintains -0.025 to 0 mm tolerance with shoulder length controlled within 0 to 0.05 mm tolerance for precise fitment. Manufacturing complies with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, guaranteeing environmental compliance for industrial applications worldwide. The mechanical properties include Rockwell B70 hardness and 70,000 psi tensile strength, validated for consistent performance.