S-91273A489 M16 Shoulder Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with 18-8 stainless steel construction, ideal for harsh environments and extended service life.
• High mechanical strength offering a tensile strength of 70,000 psi and shear strength of 35,000 psi for reliable performance under heavy loads.
• Precise location and pivot function enabled by the 35mm long, accurately machined shoulder with a tight diameter tolerance.
li>Secure and efficient installation with the 8mm hex socket drive and knurled head for superior grip and torque application.
• Reliable thread engagement ensured by the M16x2mm coarse pitch, right-hand Class 5g6g thread fit, facilitating quick assembly.
• Enhanced durability from a Rockwell B55 hardness, providing excellent resistance to wear and deformation.
• Compliance with global standards including RoHS 3 and REACH, ensuring environmental safety and material quality.

Professional Applications & Engineering Value

This M16 shoulder screw is engineered to address critical alignment and rotational requirements in demanding assemblies. The 18-8 stainless steel material provides excellent resistance to rust and corrosion, making it suitable for applications in machinery, automotive, and outdoor equipment where exposure to moisture is a concern. The 35mm precision shoulder acts as a dependable datum for locating parts, reducing misalignment and wear in pivoting joints or as a spacer. The hex socket drive and knurled head ensure high torque transmission without slippage, which is crucial for maintaining clamp load in high-vibration environments. Its Class 5g6g thread fit and coarse pitch enable rapid and secure fastening, streamlining production and maintenance processes while ensuring long-term reliability.

Specification Summary & Compliance

This shoulder screw features an M16x2mm coarse pitch metric thread with a Class 5g6g tolerance for consistent fit. The shoulder diameter is held to a tight tolerance of -0.04 to -0.01 mm, and the shoulder length tolerance is 0 to 0.25 mm, ensuring precise assembly. Manufactured from 18-8 stainless steel with a hardness of Rockwell B55, it meets mechanical property requirements. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, confirming its adherence to stringent environmental and safety standards.