S-94361A593 M4 Shoulder Screws

Key Features & Benefits at a Glance

• Enhanced Durability and Corrosion Resistance with black oxide finish protecting against wear in demanding industrial environments
• Superior Tensile Strength of 140,000 psi from alloy steel construction ensures reliable performance under high-stress applications
• Precision Thread Fit with Class 6g tolerance provides consistent engagement and vibration resistance in assembled components
• Secure Installation and Removal with hex socket drive and 2.5mm drive size enabling high torque application without slippage
• Accurate Component Alignment through 5mm shoulder diameter with tight -0.072 to -0.01 mm tolerance for precise positioning
• Improved Grip and Handling with knurled head texture facilitating manual adjustment in confined spaces
• Regulatory Compliance Assurance with RoHS 3 and REACH compliance meeting international environmental and safety standards

Professional Applications & Engineering Value

This M4 shoulder screw delivers exceptional engineering value in precision assembly applications where component alignment and structural integrity are critical. The alloy steel construction with Rockwell C32 hardness provides optimal strength-to-weight ratio, resisting deformation under continuous load conditions. The 20mm shoulder length with controlled tolerance serves as precise locating surfaces in machinery, jigs, and fixtures, eliminating the need for additional bushings or spacers. The black oxide finish offers consistent corrosion protection while maintaining dimensional stability in humid or chemically aggressive environments. The hex socket drive combined with coarse pitch metric threading ensures rapid installation and secure fastening in automated assembly lines, reducing production downtime while maintaining Class 6g thread fit precision for vibration-resistant connections.

Specification Summary & Compliance

This precision shoulder screw features M4 x 0.7mm coarse pitch metric thread with Class 6g tolerance following ISO metric standards. The shoulder diameter maintains tight tolerance control between -0.072 to -0.01 mm, while shoulder length tolerance is controlled within 0 to 0.25 mm. Manufacturing complies with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring environmental compliance for global industrial applications. The component meets mechanical property specifications including 140,000 psi tensile strength and Rockwell C32 hardness for consistent performance in demanding fastening applications.