S-90318A870 M5 Shoulder Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with 316 stainless steel construction, ideal for harsh environments and extended service life
• Precise alignment and component location enabled by the 6mm diameter shoulder with a precise fit tolerance
• High-strength performance with 70,000 PSI tensile strength and 35,000 PSI minimum shear strength for demanding applications
• Reliable, standardized threading with a Class 6g fit and coarse M5x0.8mm metric thread for consistent assembly and interchangeability
• Space-saving, low-profile installation using the ultra-low socket head and 3mm hex drive for flush mounting in confined areas
• Enhanced durability with a Rockwell B70 hardness, providing excellent resistance to wear and deformation
• Compliance with major environmental regulations including RoHS 3 and REACH, ensuring material safety and global market acceptance

Professional Applications & Engineering Value

This M5 shoulder screw is engineered to solve critical alignment and space challenges in precision assemblies. The 316 stainless steel material offers exceptional resistance to chemicals and corrosion, making it suitable for medical devices, food processing equipment, and marine applications. The integrated 6mm shoulder acts as a precise pivot, bearing surface, or locator, eliminating the need for separate spacers and reducing assembly complexity. The ultra-low socket head and 3mm hex drive allow for installation in tight spaces where a standard bolt head would protrude, ensuring a clean, flush finish. The Class 6g thread fit and coarse thread pitch provide reliable fastening with high resistance to vibration loosening, delivering long-term reliability in dynamic industrial environments.

Specification Summary & Compliance

This precision shoulder screw conforms to Metric standards with an M5 thread size and 0.8mm coarse pitch. The thread is manufactured to a Class 6g tolerance for a secure fit. The shoulder features a diameter of 6 mm with a tolerance of -0.025 to 0 mm and a length of 6 mm with a tolerance of 0 to +0.05 mm, ensuring a precise fit for accurate component positioning. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations.