S-98621A151 M6 Shoulder Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with 18-8 stainless steel construction and TiCN coating, ideal for harsh industrial environments
• Exceptional alignment accuracy due to the precisely machined shoulder with tight diameter and length tolerances
• High mechanical strength offering reliable performance with a tensile strength of 70,000 psi and Rockwell B55 hardness
• Secure, tamper-resistant fastening enabled by the hex socket drive for high-torque applications
• Consistent thread engagement ensured by the Class 6g thread fit and M6x1 coarse thread profile
• Extended service life from the durable TiCN surface treatment reducing wear and friction
• Compliance with global standards including RoHS 3 and REACH for safe, regulated use in various industries

Professional Applications & Engineering Value

This M6x1 shoulder screw is engineered to solve critical alignment and positioning challenges in precision machinery. The 25mm shoulder length with its precise fit acts as a dependable pivot or axle, eliminating the need for additional spacers and reducing assembly complexity. Manufactured from 18-8 stainless steel and finished with a TiCN coating, it provides excellent resistance to corrosion, galling, and wear, which is vital for maintaining performance in automated systems and high-cycle applications. The hex socket drive allows for clean installation in confined spaces, making it a top choice for industrial equipment, robotics, and fixtures where precision alignment and long-term reliability are non-negotiable.

Specification Summary & Compliance

This metric shoulder screw features an M6x1 coarse thread with a Class 6g thread fit. The shoulder diameter tolerance is -0.025 to 0 mm, and the shoulder length tolerance is 0 to 0.05 mm, ensuring high dimensional accuracy. It is manufactured in compliance with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, confirming its suitability for use in regulated industrial and engineering applications.