S-90265A254 M5 ISO 7379 Shoulder Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with 18-8 stainless steel construction, ideal for harsh environments and extended service life.
• Enhanced grip and torque application from the knurled socket head and 4 mm hex drive, reducing tool slippage during assembly.
• Precise component alignment and spacing enabled by the 6 mm shoulder with controlled diameter tolerance, minimizing assembly errors.
• High mechanical strength and reliability with 70,000 psi tensile and 45,000 psi shear strength, suitable for demanding loads.
• Consistent thread engagement due to Class 5g6g fit and M5x0.8 coarse pitch, ensuring easy installation and vibration resistance.
• Compliance with international standards including ISO 7379, RoHS 3, and REACH, guaranteeing quality and environmental safety.
• Durable performance under stress backed by Rockwell B83 hardness, maintaining integrity in repetitive or high-torque applications.

Professional Applications & Engineering Value

This M5 shoulder screw is engineered to address common industrial challenges such as misalignment, corrosion-induced failure, and assembly inefficiency. The 18-8 stainless steel material provides excellent resistance to rust and chemicals, making it suitable for precision machinery, automotive assemblies, and electronic enclosures exposed to moisture or contaminants. The knurled socket head with a hex drive allows for secure tool engagement, reducing the risk of stripping and enabling high-torque fastening in confined spaces. The integrated shoulder acts as a precise bearing surface or pivot, eliminating the need for additional spacers and streamlining production. With a coarse thread pitch and Class 5g6g thread fit, it ensures quick installation and reliable hold in vibrating environments, enhancing overall equipment durability and reducing maintenance downtime.

Specification Summary & Compliance

This shoulder screw features a metric M5x0.8 coarse thread with Class 5g6g thread fit for precise tolerance. The shoulder diameter is 8 mm with a tolerance of -0.072 to -0.01 mm, and shoulder length is 6 mm with a tolerance of 0 to 0.25 mm, ensuring accurate alignment. It conforms to ISO 7379 manufacturing standards and is compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, affirming its suitability for global industrial use without hazardous substances.