S-94128A106 M4 DIN 927 Shoulder Screws

Key Features & Benefits at a Glance

• Enhanced Durability - Alloy steel construction with Rockwell B75 hardness provides superior wear resistance and longevity in demanding industrial environments
• Precise Alignment - 5.5mm shoulder diameter with tight tolerance ensures accurate component positioning and reduces assembly errors
• Reliable Fastening - Class 6g thread fit with M4x0.7 coarse pitch delivers secure connections and prevents loosening under vibration
• Space-Saving Design - Headless configuration with 4mm shoulder length maximizes usable space in compact assemblies
• Easy Installation - Slotted drive style allows for straightforward manual installation and adjustment with standard tools
• Industry Compliance - DIN 927 standard ensures consistent quality and interchangeability across European mechanical systems
• Environmental Responsibility - RoHS 3 and REACH compliance guarantees safe, sustainable manufacturing without restricted substances

Professional Applications & Engineering Value

These precision shoulder screws deliver exceptional engineering value in applications requiring exact component alignment and reliable fastening. The alloy steel construction with Rockwell B75 hardness withstands mechanical stress and wear in demanding environments such as machinery assemblies, precision instruments, and automation equipment. The precise shoulder diameter of 5.5mm with minimal tolerance ensures accurate bearing surfaces and proper component spacing, eliminating misalignment issues that can lead to premature failure. The M4 coarse thread with Class 6g fit provides quick assembly while maintaining vibration resistance, making these headless shoulder screws ideal for space-constrained applications where traditional bolt heads would interfere. The slotted drive style offers compatibility with standard tools, simplifying maintenance and adjustments in field service scenarios.

Specification Summary & Compliance

This M4 shoulder screw features precise dimensional tolerances including Class 6g thread fit, shoulder diameter tolerance of -0.03mm to 0mm, and shoulder length tolerance of -0.48mm to 0mm. Manufactured to DIN 927 specifications for consistent quality and performance. The product fully complies with RoHS 3 (2015/863/EU) environmental directives and REACH (EC 1907/2006) regulations regarding substance restrictions, ensuring safe use across various industrial applications.