S-91319A214 M6 ISO 7379 Shoulder Screws

Key Features & Benefits at a Glance

• Vibration-resistant fastening with integrated nylon pellet thread locker, maintaining secure hold from -50° to 250° F in demanding environments.
• Enhanced durability and corrosion resistance through alloy steel construction with black oxide finish, ideal for harsh industrial settings.
• High load-bearing capacity offering 150,000 psi tensile strength and 84,000 psi shear strength for reliable performance in heavy-duty applications.
• Precise alignment and smooth rotation with a 35mm shoulder length and tight diameter tolerance, reducing wear on mating components.
• Secure, non-slip installation using a 4mm hex drive and knurled socket head for easy torque application and reduced tool slippage.
• Accurate thread engagement with Class 5g6g metric coarse threads (M6x1), ensuring consistent fit and reduced risk of cross-threading.
• Compliance with international standards including ISO 7379, RoHS 3, and REACH, guaranteeing quality and environmental safety.

Professional Applications & Engineering Value

This M6 shoulder screw is engineered to address critical challenges in industrial assembly, where precision and vibration resistance are paramount. The alloy steel core, hardened to Rockwell C32, provides exceptional strength to withstand high-stress conditions in machinery, automotive, and automation systems. Its 35mm shoulder length with minimal tolerance allows for exact positioning of moving parts like gears and pulleys, minimizing misalignment and extending component life. The black oxide finish adds a layer of corrosion protection, while the integrated nylon pellet thread locker secures fasteners against loosening under dynamic loads. By combining a socket head with hex drive, it ensures easy installation in confined spaces, making it a reliable choice for precision engineering applications that demand durability and consistent performance.

Specification Summary & Compliance

This shoulder screw features a Class 5g6g thread fit per metric standards, with a shoulder diameter tolerance of -0.049 to -0.01 mm and length tolerance of 0 to 0.25 mm for high precision. It is manufactured in compliance with ISO 7379 for dimensional accuracy and meets RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, ensuring safe and sustainable use in global industrial markets.