S-91273A439 M10 Shoulder Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with 18-8 Stainless Steel construction, ideal for harsh environments and reducing replacement frequency.
• High mechanical strength with 70,000 psi tensile and 35,000 psi shear strength, ensuring reliable performance under significant loads.
• Precise component alignment enabled by the 4mm shoulder with tight diameter tolerance (-0.04 to -0.01 mm), minimizing assembly play.
• Secure, non-slip fastening thanks to the knurled hex socket head and 5mm drive, allowing for high-torque installation.
• Consistent and reliable threading with Class 5g6g fit and M10x1.5mm coarse thread, facilitating quick and easy assembly.
• Enhanced durability from a Rockwell B55 hardness, providing excellent resistance to wear and deformation.
• Global compliance assurance by meeting RoHS 3 and REACH regulations, ensuring safety and environmental standards for international supply chains.

Professional Applications & Engineering Value

This M10 shoulder screw is engineered to solve critical alignment and strength challenges in industrial applications. The 18-8 Stainless Steel material offers excellent corrosion resistance, making it suitable for machinery, automotive assemblies, and equipment exposed to moisture or chemicals. The integral shoulder with its precise diameter acts as a pivot or bearing surface, eliminating the need for separate spacers and reducing component count. Paired with the coarse thread (1.5mm pitch) and Class 5g6g thread fit, it ensures rapid installation and vibration resistance in dynamic systems. The knurled hex socket head allows for high torque application without slippage, which is crucial in tightly spaced assemblies. This design directly addresses common issues of misalignment, part wear, and assembly time, providing long-term engineering value and reliability.

Specification Summary & Compliance

This metric shoulder screw features a M10x1.5mm coarse thread with a Class 5g6g thread fit, ensuring dimensional accuracy per ISO standards. The shoulder diameter tolerance is tightly controlled at -0.04 to -0.01 mm, and the shoulder length tolerance is 0 to 0.25 mm, guaranteeing precise fits in machined components. Manufactured from 18-8 Stainless Steel with a hardness of Rockwell B55, it complies with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, affirming its suitability for use in regulated and environmentally conscious industries.