S-90265A287 M8 ISO 7379 Shoulder Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with 18-8 Stainless Steel construction, ideal for harsh environments and reducing maintenance costs.
• High mechanical strength offering 70,000 psi tensile strength and 45,000 psi minimum shear strength for reliable load-bearing in demanding applications.
• Precision thread fit (Class 5g6g) ensures smooth assembly, reduces cross-threading risks, and provides consistent clamping force.
• Secure and easy installation with a 5 mm hex socket drive and knurled head for superior grip and torque application without slippage.
• Accurate shoulder positioning featuring a 10 mm diameter shoulder with tight tolerances for precise component alignment and rotation control.
• Compliance with international standards including ISO 7379, RoHS 3, and REACH, ensuring product safety, reliability, and global acceptance.
• Durable and long-lasting performance due to Rockwell B83 hardness, resisting wear and deformation under repeated use.

Professional Applications & Engineering Value

This M8 shoulder screw is engineered to address critical assembly challenges in industries like automation, machinery, and precision equipment. The 18-8 Stainless Steel material provides excellent corrosion resistance, making it suitable for environments exposed to moisture, chemicals, or outdoor conditions. The coarse thread pitch (1.25mm) and Class 5g6g thread fit facilitate quick and reliable fastening, minimizing assembly time and preventing thread damage. The integrated shoulder with controlled diameter and length tolerances acts as a precise pivot or spacer, ensuring accurate alignment of moving parts such as gears, bearings, or linkages. Combined with a hex socket drive and knurled head texture, it offers secure torque transmission and easy handling, even in confined spaces. This design enhances operational stability, reduces vibration-induced loosening, and extends the service life of your equipment.

Specification Summary & Compliance

This shoulder screw features a metric M8x1.25mm coarse thread with Class 5g6g tolerance for precise fit. The shoulder diameter is 10 mm with a tolerance of -0.072 to -0.01 mm, and shoulder length is 4 mm with a tolerance of 0 to 0.25 mm, ensuring high dimensional accuracy. It is manufactured in compliance with ISO 7379 specifications and meets RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, confirming its suitability for safe and sustainable industrial use.