S-94361A519 M5 Shoulder Screws

Key Features & Benefits at a Glance

• Enhanced Durability & Corrosion Resistance: Black oxide finish on alloy steel provides superior protection against rust and wear in demanding industrial environments.
• Precision Alignment & Pivot Function: A consistent 6mm shoulder diameter with tight tolerances ensures accurate component location and smooth rotational movement.
• High-Strength Fastening: With a 140,000 psi tensile strength and Rockwell C32 hardness, this screw reliably withstands high shear and tensile loads.
• Secure & Flush Installation: The socket head with hex drive allows for high-torque tightening and a low-profile, space-saving design.
• Reliable Thread Engagement: The Class 5g6g metric thread with a coarse 0.8mm pitch ensures easy assembly and a secure, vibration-resistant fit.
• Global Compliance & Safety: Manufactured to be RoHS 3 and REACH compliant, meeting international environmental and safety regulations for industrial use.
• Optimized for Automated Assembly: The smooth, standard socket head profile and consistent threading facilitate efficient use in automated production systems.

Professional Applications & Engineering Value

This M5 shoulder screw is engineered to solve critical alignment and pivot challenges in precision machinery. The alloy steel core, hardened to Rockwell C32, provides the necessary structural integrity to act as a durable axle or guide pin in assemblies subject to rotational forces and high stress. The black oxide finish not only enhances corrosion resistance but also reduces galling, which is crucial for components requiring repeated disassembly. The precisely machined 6mm shoulder serves as a built-in locating datum, eliminating the need for and cost of additional spacers or bushings in applications like linkages, gears, and pivoting arms. Its socket head design allows for compact installations where wrench clearance is limited, making it an ideal industrial shoulder screw for robotics, automotive subsystems, and conveyor systems.

Specification Summary & Compliance

This metric shoulder screw features an M5 x 0.8mm coarse thread with a Class 5g6g thread fit, ensuring dimensional accuracy and interchangeability. The shoulder diameter is held to a tight tolerance of -0.072 to -0.01 mm, and the shoulder length tolerance is 0 to 0.25 mm. The product is manufactured in compliance with RoHS 3 (2015/863/EU) with exemption 6(a) and is REACH (EC 1907/2006) compliant, confirming its adherence to stringent international standards for hazardous substances.