S-91319A213 M6 ISO 7379 Shoulder Screws

Key Features & Benefits at a Glance

• Vibration-resistant locking: Integrated nylon pellet thread locker prevents loosening under dynamic loads, maintaining clamp force in high-vibration environments from -50° to 250°F
• Precision alignment capability: 30mm shoulder length with tight diameter tolerance provides accurate component positioning and reduces bearing surface wear
• High load capacity: 150,000 psi tensile strength and 84,000 psi shear strength withstand extreme mechanical stresses in demanding applications
• Corrosion-resistant protection: Black oxide finish on alloy steel base material offers improved rust resistance for extended service life
• Secure installation: 4mm hex socket drive with knurled head provides positive grip and prevents tool slippage during torque application
• Interchangeable compatibility: Manufactured to ISO 7379 standard with Class 5g6g threads ensures proper fit with metric components
• Environmental compliance: Meets RoHS 3 and REACH regulations for use in regulated industries and international markets

Professional Applications & Engineering Value

This M6 shoulder screw delivers critical engineering solutions where precise alignment and vibration resistance are paramount. The alloy steel construction with black oxide finish provides durability against corrosion while maintaining the 150,000 psi tensile strength needed for high-stress assemblies. The integrated nylon pellet thread locker effectively prevents self-loosening in vibrating equipment, eliminating the need for separate locking components. The precision 30mm shoulder length with controlled diameter tolerance serves as an accurate pivot point or bearing surface in machinery, automation systems, and precision instruments. With Class 5g6g threads meeting ISO 7379 specifications, these socket head shoulder screws ensure reliable performance in manufacturing equipment, robotic arms, and mechanical assemblies where dimensional accuracy and vibration resistance are critical.

Specification Summary & Compliance

This precision shoulder screw features M6x1mm coarse metric threads with Class 5g6g tolerance fit, ensuring proper engagement with mating components. The shoulder diameter maintains -0.049 to -0.01 mm tolerance with shoulder length tolerance of 0 to 0.25 mm for precise dimensional control. Manufactured to ISO 7379 specifications and compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental standards, this fastener meets international regulatory requirements for industrial applications.