S-90278A301 M5 Shoulder Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with 18-8 stainless steel construction for long-lasting performance in harsh industrial environments
• Precise component alignment ensured by the exact shoulder diameter tolerance (-0.025 to 0 mm), reducing assembly errors
• High-strength durability with 70,000 psi tensile strength and Rockwell B55 hardness for reliable load-bearing applications
• Secure hex socket drive provides excellent torque transmission and prevents stripping during installation
• Industry-standard compatibility with Class 6g thread fit and M5x0.8 coarse thread for quick assembly and interchangeability
• Environmental compliance assurance meeting RoHS 3 and REACH regulations for safe use in regulated industries
• Smooth head finish minimizes friction and damage to mating surfaces during installation

Professional Applications & Engineering Value

This precision shoulder screw delivers exceptional value in applications requiring exact positioning and rotational control, such as machinery assemblies, pivoting mechanisms, and precision instruments. The 18-8 stainless steel construction provides excellent corrosion resistance while maintaining high tensile strength for demanding environments. The hex socket drive allows for secure installation in confined spaces, while the precisely machined 6mm shoulder diameter with tight tolerance ensures perfect alignment of moving components, eliminating play and reducing wear. The M5x0.8 coarse thread with Class 6g fit offers quick assembly and reliable fastening in industrial equipment, automotive components, and electronic enclosures where vibration resistance and dimensional stability are critical.

Specification Summary & Compliance

This metric shoulder screw features M5x0.8 coarse threads with Class 6g thread fit per ISO standards, ensuring precise engagement and reliable performance. The shoulder diameter maintains tight tolerance of -0.025 to 0 mm with shoulder length tolerance of 0 to 0.05 mm for exact positioning applications. Manufactured from 18-8 stainless steel with Rockwell B55 hardness and 70,000 psi tensile strength. Fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations for safe use across various industries.