S-90265A227 M5 ISO 7379 Shoulder Screws

Key Features & Benefits at a Glance

• Enhanced Durability & Corrosion Resistance: Crafted from 18-8 Stainless Steel with a Rockwell B83 hardness, this screw offers superior resistance to rust and wear, ensuring long-term reliability in harsh environments.
• Precise Component Alignment & Spacing: The 50mm shoulder length with a controlled diameter tolerance acts as a precise pivot or spacer, reducing assembly errors and improving the accuracy of rotating parts.
• High Tensile & Shear Strength: With a 70,000 psi tensile strength and 45,000 psi minimum shear strength, it provides robust fastening for high-stress applications, minimizing the risk of mechanical failure.
• Secure & Reliable Thread Engagement: Features a Class 5g6g thread fit on the M5x0.8 coarse thread, ensuring consistent, vibration-resistant connections that meet demanding industrial standards.
• Easy Installation with Standard Tools: The hex socket (3 mm drive) allows for efficient tightening with common Allen keys, speeding up assembly and maintenance while preventing cam-out.
• Global Compliance & Safety Assurance: Manufactured to ISO 7379 specifications and compliant with RoHS 3 and REACH, it meets international regulatory requirements for safe use in various industries.
• Optimized for Heavy-Duty Applications: The combination of a smooth head and sturdy shoulder design supports heavy loads in machinery, reducing wear on adjacent components.

Professional Applications & Engineering Value

This M5 shoulder screw is engineered to address critical challenges in precision assembly, such as misalignment and component wear. The 50mm shoulder serves as an integral locating dowel or bearing surface, enabling exact positioning in industrial machinery, automation systems, and conveyor equipment. Made from 18-8 stainless steel, it resists corrosion from oils, moisture, and chemicals, extending service life in demanding settings. The M5x0.8 coarse thread with a Class 5g6g fit ensures quick, secure fastening, while the hex socket drive simplifies installation in tight spaces. Ideal for precision shoulder fasteners in pivots, gears, and linkages, it enhances operational reliability and reduces maintenance downtime.

Specification Summary & Compliance

This shoulder screw adheres to ISO 7379 standards, with a thread fit of Class 5g6g and precise shoulder dimensions (diameter tolerance: -0.072 to -0.01 mm; length tolerance: 0 to 0.25 mm). It is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring environmental safety and material integrity for global industrial use.