S-90318A940 M6 Shoulder Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with 316 stainless steel construction, ideal for harsh chemical and marine environments
• Enhanced mechanical stability from the precise shoulder fit (8mm diameter, 6mm length), minimizing component misalignment
• High-strength performance offering 70,000 psi tensile strength and Rockwell B70 hardness for demanding applications
• Secure, low-profile installation with the ultra-low hex socket head design, saving space and preventing stripping
• Reliable thread engagement due to Class 6g thread fit and M6x1mm coarse thread, ensuring quick assembly and vibration resistance
• Compliance with industry regulations including RoHS 3 and REACH, guaranteeing safe use in industrial settings
• Consistent dimensional accuracy with tight shoulder tolerances, providing repeatable performance in precision assemblies

Professional Applications & Engineering Value

This M6 shoulder screw is engineered to address critical alignment and stability challenges in precision industrial applications. The 316 stainless steel material delivers exceptional resistance to corrosion and oxidation, making it suitable for environments like chemical processing, marine equipment, and food machinery. Its ultra-low hex socket head allows for compact designs while the precise shoulder fit ensures accurate positioning of components such as gears, pulleys, and bearings, reducing wear and maintenance. The coarse thread (M6x1mm) with Class 6g fit facilitates rapid assembly and enhances vibration resistance, crucial for machinery subject to dynamic loads. By integrating high tensile strength and regulatory compliance, this fastener provides long-term reliability in automated systems, medical devices, and optical instruments.

Specification Summary & Compliance

This shoulder screw adheres to metric standards with an M6x1mm coarse thread and Class 6g thread fit for consistent dimensional accuracy. The shoulder features a diameter of 8mm (tolerance: -0.025 to 0 mm) and length of 6mm (tolerance: 0 to 0.05 mm), ensuring precise fit in assemblies. Manufactured from 316 stainless steel with Rockwell B70 hardness and 70,000 psi tensile strength, it meets rigorous mechanical requirements. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, supporting safe and sustainable industrial use.