S-90269A418 M27 Shoulder Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance in harsh environments thanks to 316 Stainless Steel construction, ideal for chemical, marine, and outdoor applications.
• Exceptional mechanical strength with 70,000 psi tensile strength and Rockwell B79 hardness for reliable performance under high-stress loads.
• Precise alignment and smooth rotation enabled by the 100mm shoulder with a tight diameter tolerance, reducing wear on mating parts.
• Secure and easy manual installation with the 45mm knurled hex socket head, providing excellent grip and torque application without slipping.
• Dependable thread engagement with a Class 5g6g fit M27x3mm coarse thread, ensuring consistent fastening and vibration resistance.
• Compliance with stringent environmental regulations, being RoHS 3 and REACH compliant for safe use in regulated industries.
• Optimized for high-shear applications with a minimum shear strength of 35,000 psi, enhancing joint integrity in dynamic assemblies.

Professional Applications & Engineering Value

This M27x3mm metric shoulder screw is engineered to address critical challenges in precision machinery and heavy-duty equipment. The 316 Stainless Steel material offers excellent resistance to corrosion and oxidation, making it suitable for demanding sectors like chemical processing, marine engineering, and food manufacturing where moisture and aggressive substances are prevalent. The knurled hex socket head allows for secure manual or tool-driven installation, minimizing the risk of stripping and ensuring efficient assembly in tight spaces. With a 100mm shoulder length and precise diameter tolerance, it provides a stable pivot or bearing surface, reducing misalignment and extending the lifespan of rotating components. This design is ideal for applications requiring exact positioning, such as in conveyor systems, robotic arms, and automotive jigs, where high tensile strength and durability are paramount for operational safety and reduced maintenance.

Specification Summary & Compliance

This shoulder screw adheres to metric thread standards with an M27x3mm coarse thread and Class 5g6g thread fit for consistent dimensional accuracy. The shoulder diameter tolerance is -0.072 to -0.01 mm, and shoulder length tolerance is 0 to 0.25 mm, ensuring precise assembly. It complies with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, confirming its suitability for environmentally conscious industrial applications without hazardous substances.