S-91273A486 M16 Shoulder Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with 18-8 Stainless Steel construction, ideal for harsh industrial environments and reducing replacement frequency.
• High mechanical strength offering 70,000 psi tensile and 35,000 psi shear strength for reliable performance under significant loads.
• Precise component alignment enabled by the 20mm shoulder with tight diameter tolerance (-0.04 to -0.01 mm), minimizing assembly play.
• Secure and efficient installation with an 8mm hex socket and knurled head, providing excellent grip and torque transmission.
• Consistent thread engagement ensured by the M16x2mm coarse pitch and Class 5g6g thread fit, facilitating quick assembly.
• Enhanced durability from Rockwell B55 hardness, resisting wear and deformation in demanding applications.
• Global regulatory compliance with RoHS 3 and REACH, ensuring safety and environmental standards are met for international supply chains.

Professional Applications & Engineering Value

This M16 shoulder screw is engineered to address critical alignment and load-bearing challenges in industrial applications. The 18-8 Stainless Steel material provides excellent resistance to rust and corrosion, making it suitable for machinery, automation systems, and outdoor equipment. The precision shoulder diameter and length with minimal tolerances ensure accurate positioning of moving parts like gears and pulleys, reducing vibration and misalignment. The hex socket head with a knurled texture allows for high-torque installation in confined spaces, while the coarse thread and Class 5g6g thread fit enable rapid, secure fastening. This design minimizes downtime and maintenance, offering reliable performance in high-stress environments such as assembly jigs, conveyor systems, and precision instruments.

Specification Summary & Compliance

This shoulder screw features a metric thread with M16x2mm coarse pitch and Class 5g6g thread fit per ISO standards, ensuring dimensional accuracy. The shoulder diameter tolerance is -0.04 to -0.01 mm, and shoulder length tolerance is 0 to 0.25 mm for precise fits. It complies with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, confirming it is free of hazardous substances and suitable for global industrial use.