S-97505A115 M4 DIN 923 Shoulder Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with zinc plating that protects against rust and extends service life in harsh industrial environments
• High-strength alloy steel construction ensures reliable performance under heavy loads with 58,000 psi tensile strength and Rockwell B71 hardness
• Precision shoulder design with 12mm length and tight diameter tolerance provides accurate alignment and smooth rotational movement in assemblies
• Low-profile socket head allows for easy installation in confined spaces while maintaining tool engagement
• Coarse M4x0.7 metric threading enables quick assembly and disassembly while maintaining secure fastening in various materials
• DIN 923 compliance guarantees consistent quality and interchangeability in European machinery and equipment applications
• Environmental regulation compliance with RoHS 3 and REACH ensures safe use in global markets and sensitive applications

Professional Applications & Engineering Value

These M4 shoulder screws deliver critical engineering value in precision assemblies where rotational alignment and component spacing are paramount. The alloy steel construction combined with zinc plating addresses common industrial challenges of component wear and environmental degradation. The precisely machined 12mm shoulder with minimal diameter tolerance serves as an accurate pivot point or spacer in machinery, eliminating the need for additional bushings or washers. The coarse metric thread (M4x0.7) ensures reliable engagement in both metallic and non-metallic materials, while the low-profile socket head provides secure tool engagement without protruding excessively. These DIN 923 compliant fasteners are particularly valuable in automation equipment, precision instruments, and mechanical assemblies where dimensional accuracy and corrosion resistance are critical for long-term performance.

Specification Summary & Compliance

This shoulder screw features precise dimensional control with Class 6g thread fit, shoulder diameter tolerance of -0.03mm to 0mm, and shoulder length tolerance of 0.1mm to 0.2mm. Manufactured to DIN 923 standards with right-hand metric threading (M4x0.7 coarse pitch). The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, ensuring suitability for international industrial applications and sensitive manufacturing environments.