S-90323A253 M8 Shoulder Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with 18-8 stainless steel construction and passivated finish for extended service life in harsh environments
• Precise component alignment enabled by controlled shoulder diameter (10mm) and length (12mm) with tight tolerances
• High-strength performance delivering 80,000 psi tensile strength and Rockwell B95 hardness for demanding applications
• Space-saving low-profile design with smooth socket head requiring minimal clearance while providing secure 5mm hex drive engagement
• Reliable thread engagement with Class 6g metric thread fit ensuring consistent fastening performance in assembly operations
• Regulatory compliance assurance meeting RoHS 3 and REACH standards for global industrial applications
• Optimized installation efficiency through right-hand coarse threading (M8x1.25) for rapid assembly and disassembly

Professional Applications & Engineering Value

This M8 shoulder screw delivers critical engineering value in precision applications where component alignment and dimensional stability are paramount. The 18-8 stainless steel construction with passivated finish provides exceptional corrosion resistance for machinery operating in humid or chemically aggressive environments. The low profile socket head design minimizes protrusion while the precise shoulder dimensions (10mm diameter, 12mm length) act as accurate locating surfaces for bearings, gears, and rotating components. With its Class 6g thread fit and 80,000 psi tensile strength, this metric shoulder screw maintains positional accuracy under vibration and load, making it ideal for precision equipment, automation systems, and industrial machinery where repeatable alignment is critical to operational reliability.

Specification Summary & Compliance

This precision fastener features Class 6g thread fit per metric standards with M8x1.25 coarse threading. Shoulder dimensions maintain tight tolerances (diameter: -0.025 to 0 mm, length: 0 to 0.05 mm) for precise component positioning. Manufactured from 18-8 stainless steel with passivated finish, the screw delivers mechanical properties including 80,000 psi tensile strength and Rockwell B95 hardness. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring environmental responsibility and global market acceptance for industrial applications.