S-93856A172 M4 Shoulder Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with 18-8 stainless steel construction, ideal for harsh industrial environments and reducing maintenance costs.
• Precise alignment and secure positioning thanks to the accurately machined shoulder with tight diameter tolerance, minimizing assembly play.
• High-strength performance offering 70,000 psi tensile and 35,000 psi shear strength for reliable load-bearing in demanding applications.
• Easy and secure installation with a 2.5 mm hex socket drive and knurled head, providing excellent grip and preventing tool slippage.
• Versatile shoulder length options from 4 mm to 49.75 mm, allowing for custom spacing and component mounting in various designs.
• Consistent and reliable thread engagement ensured by the Class 5g6g thread fit and coarse M4 x 0.7 mm pitch for quick assembly.
• Compliance with environmental regulations including RoHS 3 and REACH, ensuring safety and suitability for global markets.

Professional Applications & Engineering Value

This M4 shoulder screw is engineered to address common challenges in precision assembly, such as misalignment and component wear. The 18-8 stainless steel material provides excellent durability and resistance to rust, making it suitable for applications in machinery, automotive, and electronics where exposure to moisture or chemicals is a concern. The hex socket drive and knurled head enhance installation efficiency, reducing the risk of stripping and ensuring a firm hold during torque application. With a Class 5g6g thread fit and coarse 0.7 mm pitch, it offers quick and secure fastening, ideal for high-volume production lines. The precisely toleranced shoulder diameter and length enable accurate positioning of moving parts, reducing vibration and improving overall system longevity in industrial applications.

Specification Summary & Compliance

This shoulder screw adheres to Metric system standards with an M4 thread size and 0.7 mm coarse pitch. The thread fit conforms to Class 5g6g for consistent assembly precision. Shoulder diameter tolerance is -0.072 to -0.01 mm, and shoulder length tolerance is -0.05 to 0.05 mm, ensuring reliable performance. It is manufactured in compliance with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, supporting environmentally responsible sourcing and use.