S-90269A686 M8 ISO 7379 Shoulder Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with 316 stainless steel and black oxide finish, ideal for harsh environments and extended service life.
• High mechanical strength and durability with 70,000 PSI tensile strength and Rockwell B79 hardness for reliable performance under load.
• Precise alignment and spacing ensured by the 30mm shoulder with controlled diameter and length tolerances, reducing assembly errors.
• Secure and efficient installation using the 5mm hex socket drive, providing high torque transfer and a flush head profile.
• Wide compatibility and interchangeability with M8x1.25 coarse metric threads conforming to Class 5g6g fit for consistent mating.
• Enhanced grip and handling from the knurled head texture, facilitating manual adjustments in tight spaces.
• Global regulatory compliance with ISO 7379, RoHS 3, and REACH, ensuring safety and environmental standards are met.

Professional Applications & Engineering Value

This M8 shoulder screw is engineered to address critical challenges in precision machinery and industrial assemblies. The 316 stainless steel material, combined with a black oxide finish, provides exceptional resistance to corrosion and chemical exposure, making it suitable for applications in marine, chemical processing, and outdoor equipment. The integrated 30mm shoulder acts as a precise pivot or spacer, minimizing misalignment and wear in rotating parts like bearings, gears, and linkages. With its hex socket head and coarse metric thread (M8x1.25), it allows for quick, high-torque installation in confined areas, reducing assembly time and improving reliability. Ideal for use in automation systems, automotive components, and heavy-duty fixtures, this fastener ensures long-term performance and reduces maintenance needs in demanding industrial applications.

Specification Summary & Compliance

This shoulder screw features a Class 5g6g thread fit and adheres to ISO 7379 dimensional standards for consistent quality. The shoulder diameter tolerance is -0.072 to -0.01 mm, and shoulder length tolerance is 0 to 0.25 mm, ensuring precise fits. It is manufactured to meet RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) compliance, confirming it is free from hazardous substances and safe for various industrial and consumer applications.