S-98451A115 M3 Shoulder Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with 360 Brass material, ideal for harsh industrial environments and electrical applications
• Precise component alignment with 4mm shoulder diameter and tight tolerances for reduced assembly vibration and wear
• High-strength performance delivering 40,000 psi tensile strength and Rockwell B55 hardness for demanding mechanical loads
• Secure hex drive engagement with 2mm socket head preventing cam-out and ensuring reliable torque transmission
• Accurate thread fit with Class 6g metric threads providing consistent fastening in coarse-pitch applications
• Environmental compliance meeting RoHS 3 and REACH standards for safe use in regulated industries
• Smooth head finish minimizing surface friction and preventing damage to mating components

Professional Applications & Engineering Value

This M3 shoulder screw delivers exceptional engineering value in precision assemblies where alignment and durability are critical. The 360 Brass construction offers excellent electrical conductivity and corrosion resistance, making it ideal for electronics, marine, and chemical processing equipment. The 10mm shoulder length acts as a precise pivot or spacer, eliminating the need for additional bushings in machinery, conveyor systems, and robotic arms. With its Class 6g thread fit and 2mm hex drive, installers achieve consistent clamping force without thread galling common in brass fasteners. The smooth socket head profile ensures flush mounting in tight spaces, while the coarse M3x0.5 thread provides rapid assembly in automated production lines.

Specification Summary & Compliance

Manufactured to metric standards with Class 6g thread fit and precise shoulder diameter tolerance of -0.025 to 0 mm. Shoulder length maintains 0 to 0.05 mm tolerance for accurate positioning. Fully compliant with RoHS 3 (2015/863/EU) under exemption 6(c) for lead in copper alloys and REACH (EC 1907/2006) regulations (SVHC compliance as of 06/14/2023).