S-91273A809 M6 Shoulder Screws

Key Features & Benefits at a Glance

• Exceptional corrosion resistance with 18-8 stainless steel construction, ideal for harsh industrial environments and reducing replacement frequency.
• Enhanced durability and wear resistance from the black oxide finish, which also provides a sleek, non-reflective surface.
• Superior load-bearing capacity with a tensile strength of 70,000 psi and a minimum shear strength of 35,000 psi for reliable performance under stress.
• Precise alignment and secure pivoting thanks to the 25mm shoulder length with tight tolerances, minimizing component misalignment.
• Easy and secure installation with a knurled socket head and 3mm hex drive, preventing tool slippage and ensuring consistent torque application.
• Accurate and reliable thread engagement with Class 5g6g thread fit, ensuring compatibility and reducing the risk of cross-threading in assemblies.
• Compliance with stringent environmental regulations including RoHS 3 and REACH, making it suitable for global supply chains and sensitive applications.

Professional Applications & Engineering Value

This M6 shoulder screw is engineered to address common challenges in precision assemblies, such as maintaining exact component spacing and rotational alignment. The 18-8 stainless steel material offers excellent resistance to rust and oxidation, which is critical in moist or chemically aggressive environments like food processing or outdoor machinery. The black oxide finish not only enhances corrosion protection but also reduces light reflection, making it suitable for optical equipment. With its 25mm shoulder length and precise Class 5g6g thread fit, it ensures minimal radial play, which is vital in applications like conveyor systems, robotic arms, and pivoting mechanisms where misalignment can lead to premature wear or failure. The knurled socket head and hex drive design facilitate quick, secure installation in tight spaces, improving assembly efficiency and reducing labor time in industrial settings.

Specification Summary & Compliance

This shoulder screw features a metric M6x1mm coarse pitch thread with a Class 5g6g thread fit for precise tolerance. The shoulder diameter is 6 mm with a tolerance of -0.04 to -0.01 mm, and the shoulder length is 25 mm with a tolerance of 0 to 0.25 mm, ensuring high dimensional accuracy. It complies with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, confirming its suitability for environmentally conscious and regulated industries.