S-90269A283 M8 ISO 7379 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 a tensile strength of 70,000 psi and shear strength of 35,000 psi for reliable performance under load.
• Precise location and smooth rotation enabled by the 13mm long, accurately machined shoulder with a controlled diameter tolerance.
• Secure and efficient installation with a 5mm hex socket drive and knurled head for superior grip and torque application.
• Guaranteed interchangeability and fit through compliance with the ISO 7379 standard and Class 5g6g thread fit.
• Enhanced durability from a Rockwell B79 hardness, providing excellent resistance to wear and deformation.
• Safe for regulated industries with full compliance to RoHS 3 and REACH environmental directives.

Professional Applications & Engineering Value

This M8 shoulder screw is engineered to solve critical alignment and pivot point challenges in industrial applications. Manufactured from 316 Stainless Steel, it provides outstanding resistance to corrosion from chemicals, saltwater, and atmospheric exposure, making it a top choice for food processing, marine, and chemical equipment. The precision-ground shoulder acts as a dowel, ensuring exact part location and providing a smooth bearing surface for rotating components like gears, pulleys, and linkages. The coarse M8x1.25mm thread and 5mm hex drive facilitate quick and secure fastening, while the knurled head prevents tool slippage. This design eliminates the need for separate spacers and bushings, reducing assembly time, parts count, and potential points of failure in high-stress environments.

Specification Summary & Compliance

This precision shoulder screw features an M8x1.25mm coarse metric thread with a Class 5g6g fit for standard clearance. The shoulder diameter is 10 mm with a tolerance of -0.072 to -0.01 mm, and the shoulder length is 13 mm with a tolerance of 0 to 0.25 mm. It is manufactured to meet the dimensional and mechanical requirements of the ISO 7379 specification. The product is confirmed to be RoHS 3 (2015/863/EU) Compliant and REACH (EC 1907/2006) Compliant.