S-90318A920 M5 Shoulder Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with 316 stainless steel construction, ideal for harsh environments and extended service life.
• Exceptional mechanical strength offering 70,000 psi tensile and 35,000 psi shear strength for reliable performance under high stress.
• Precise alignment and location enabled by the 16mm shoulder with tight length and diameter tolerances for accurate component positioning.
• Easy installation and high torque capability with the 3 mm hex socket drive and ultra-low head profile for space-constrained applications.
• Consistent and reliable thread engagement ensured by the Class 6g metric thread fit and coarse M5x0.8 thread for quick assembly.
• Compliance with stringent environmental regulations, being RoHS 3 and REACH compliant for safe and sustainable use.
• Durable and wear-resistant material with a Rockwell B70 hardness, maintaining integrity through repeated use.

Professional Applications & Engineering Value

This M5 shoulder screw is engineered to address critical challenges in precision assemblies, such as misalignment and component wear. The 316 stainless steel provides excellent resistance to corrosion and chemicals, making it suitable for demanding sectors like marine, chemical processing, and food machinery. Its precise shoulder with controlled tolerances ensures accurate axial location and rotational stability, reducing the need for additional bushings or spacers. The socket head design with a hex drive allows for efficient installation in tight spaces, while the Class 6g thread fit guarantees secure fastening in metric thread applications. This fastener enhances assembly reliability, minimizes maintenance, and supports long-term operational efficiency in industrial settings.

Specification Summary & Compliance

This precision shoulder screw features a M5x0.8 coarse metric thread with Class 6g thread fit for standard tolerance. The shoulder diameter is 6 mm with a tolerance of -0.025 to 0 mm, and the shoulder length is 16 mm with a tolerance of 0 to 0.05 mm, ensuring precise fit. It complies with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, confirming its adherence to environmental and safety standards for industrial use.