S-91273A492 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.
• Precise alignment and component location thanks to the 45mm shoulder with tight ±0.25mm length tolerance, minimizing assembly play.
• High mechanical strength and durability with a 70,000 psi tensile strength and Rockwell B55 hardness for reliable performance under load.
• Secure, non-slip fastening enabled by the knurled head and 8mm hex socket drive, allowing for high-torque installation.
• Accurate and reliable thread engagement with a Class 5g6g thread fit and M16x2mm coarse thread, ensuring consistent clamping force.
• Broad regulatory acceptance with RoHS 3 and REACH compliance, simplifying procurement for regulated industries.
• Versatile right-hand thread design for standard assembly processes, improving installation efficiency.

Professional Applications & Engineering Value

This M16x2mm metric shoulder screw is engineered to address critical alignment and pivot point requirements in precision machinery, automation systems, and fixture design. The 18-8 stainless steel material provides excellent resistance to corrosion and oxidation, extending service life in demanding conditions. The precisely machined 45mm shoulder acts as a stable axle or locating dowel, eliminating the need for additional spacers and reducing component wobble. Combined with the Class 5g6g thread fit, it ensures secure fastening and consistent preload in applications like conveyor systems, robotic arms, and assembly jigs. The knurled head and hex socket drive offer a secure grip for high-torque installation, making it a robust choice for maintenance and production lines where reliability is paramount.

Specification Summary & Compliance

This shoulder screw conforms to metric (M16x2mm) coarse thread specifications with a Class 5g6g thread fit for standard tolerance. The shoulder diameter is 16mm with a tolerance of -0.04 to -0.01 mm, and the shoulder length is 45mm with a 0 to +0.25 mm tolerance. It is manufactured from 18-8 Stainless Steel with a hardness of Rockwell B55, a tensile strength of 70,000 psi, and a minimum shear strength of 35,000 psi. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations.