S-90269A751 M8 Shoulder Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with 316 Stainless Steel construction, ideal for harsh environments including marine and chemical processing.
• Enhanced durability and wear resistance from the Black Oxide finish, providing added protection against rust and a sleek, non-reflective appearance.
• Precise alignment and smooth rotation thanks to the 15mm shoulder with a tight diameter tolerance, reducing wear on mating parts.
• High mechanical strength with 70,000 psi tensile and 35,000 psi shear strength, ensuring reliable performance under heavy loads.
• Secure and easy installation with a 6mm hex socket drive and knurled head, preventing tool slippage and enabling high-torque applications.
• Accurate and reliable threading with Class 5g6g fit and M8x1.25 coarse pitch, facilitating quick assembly and vibration resistance.
• Compliance with global environmental standards, being RoHS 3 and REACH compliant for safe use in regulated industries.

Professional Applications & Engineering Value

This M8 shoulder screw is engineered to address common industrial challenges such as misalignment, corrosion, and mechanical failure. The 316 Stainless Steel material offers excellent resistance to corrosive elements, making it suitable for applications in marine equipment, food processing machinery, and chemical plants. The Black Oxide finish not only enhances aesthetics but also adds a protective layer, reducing maintenance needs. The precise shoulder diameter and length ensure accurate positioning in assemblies, minimizing play and extending component life. With a coarse thread pitch and Class 5g6g thread fit, it provides secure fastening in high-vibration environments, while the socket head design allows for efficient installation in confined spaces. Ideal for use in precision machinery, robotics, and automotive systems, this screw delivers long-term reliability and performance.

Specification Summary & Compliance

This shoulder screw features an M8x1.25 coarse pitch metric thread with a Class 5g6g thread fit, ensuring dimensional accuracy and interchangeability. The shoulder diameter tolerance is -0.072 to -0.01 mm, and the shoulder length tolerance is 0 to 0.25 mm, providing precise engineering for consistent performance. Manufactured from 316 Stainless Steel with a Black Oxide finish, it meets industry standards for hardness (Rockwell B79), tensile strength (70,000 psi), and shear strength (35,000 psi). The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring environmental safety and suitability for global industrial applications.