S-94361A541 M6 Shoulder Screws

Key Features & Benefits at a Glance

• Exceptional Load-Bearing Capacity: With a tensile strength of 140,000 psi and Rockwell C32 hardness, this shoulder screw withstands high-stress applications without deformation, ensuring long-term structural integrity.
• Precision Alignment & Reduced Wear: The 8 mm shoulder diameter with tight tolerance (-0.072 to -0.01 mm) provides accurate component positioning, minimizing misalignment and extending part life in assemblies.
• Corrosion-Resistant Protection: Black oxide finish offers a durable barrier against rust and oxidation, ideal for industrial environments where moisture or chemicals are present.
• Secure & Efficient Installation: Knurled hex socket head with 4 mm drive enables non-slip driving and high torque application, reducing the risk of stripping and speeding up assembly processes.
• Reliable Thread Performance: Class 5g6g thread fit with M6 x 1 mm coarse pitch ensures consistent engagement and vibration resistance, maintaining fastener stability in dynamic operations.
• Compliance with Global Standards: Meets RoHS 3 and REACH regulations, providing assurance for use in regulated industries and international supply chains without hazardous substance concerns.
• Versatile Shoulder Design: 50 mm shoulder length with minimal tolerance (0 to 0.25 mm) allows for precise spacing and pivoting in machinery, jigs, and rotating assemblies.

Professional Applications & Engineering Value

This M6 shoulder screw is engineered to address critical alignment and durability challenges in precision machinery, automation systems, and rotating assemblies. The alloy steel construction, combined with black oxide finish, resists wear and corrosion in demanding environments such as CNC equipment, conveyor systems, and robotic arms. The 50 mm shoulder length and 8 mm shoulder diameter provide a stable pivot point or spacer, reducing bushing wear and ensuring accurate component positioning. With a Class 5g6g thread fit and coarse pitch, it offers reliable fastening under vibration, while the knurled hex socket head allows for secure driving in confined spaces. Ideal for applications requiring repeated adjustments or high rotational forces, this screw enhances assembly reliability and reduces maintenance downtime.

Specification Summary & Compliance

This shoulder screw adheres to metric system standards with an M6 x 1 mm thread size and Class 5g6g thread fit for precise tolerance. The shoulder diameter tolerance is -0.072 to -0.01 mm, and shoulder length tolerance is 0 to 0.25 mm, ensuring dimensional accuracy. It is manufactured from alloy steel with a tensile strength of 140,000 psi and hardness of Rockwell C32. Compliance includes RoHS 3 (2015/863/EU) with exemption 6(a) for lead as an alloying element in steel, and REACH (EC 1907/2006) conformity, making it suitable for global industrial use without environmental or health restrictions.