S-94128A155 10-32 Shoulder Screws

Key Features & Benefits at a Glance

• Exceptional Alignment Precision - Class 3A thread fit ensures tight tolerances for vibration-resistant assemblies requiring exact component positioning
• Superior Load Distribution - Precise 1/4" shoulder diameter with minimal tolerance provides stable bearing surface for rotating components and pivoting applications
• Enhanced Durability - Alloy steel construction with Rockwell C32 hardness maintains structural integrity under repeated stress and mechanical wear
• Streamlined Installation - Headless slotted design allows for flush mounting in space-constrained applications while maintaining easy accessibility
• Reliable Thread Engagement - 10-32 UNF fine thread spacing delivers superior holding power and resistance to loosening in high-vibration environments
• Environmental Compliance Assurance - RoHS 3 and REACH compliance eliminates regulatory concerns for international industrial applications
• Optimized Mechanical Performance - Right-hand thread direction with fine spacing ensures smooth assembly and disassembly in precision machinery

Professional Applications & Engineering Value

This precision shoulder screw addresses critical alignment challenges in industrial machinery and mechanical assemblies where component positioning accuracy directly impacts operational performance. The alloy steel construction with Rockwell C32 hardness provides exceptional resistance to deformation under load, while the Class 3A thread fit and precise shoulder diameter tolerance eliminate play in rotating assemblies. The headless slotted design enables flush mounting in compact spaces while maintaining serviceability. Ideal for precision instruments, robotic linkages, and manufacturing equipment requiring exact alignment and minimal tolerance buildup. The 10-32 UNF fine thread configuration ensures secure fastening in high-vibration applications common in industrial automation and mechanical drive systems.

Specification Summary & Compliance

Manufactured to exacting standards with Class 3A thread fit per UNF specifications, ensuring precise engagement and optimal load distribution. The shoulder features a 1/4" diameter with -0.001" to 0" tolerance and 1/4" length with 0" to 0.005" tolerance for consistent alignment performance. Compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, meeting international standards for industrial fastener applications. The right-hand thread direction with fine thread spacing follows established UNF threading standards for reliable performance in precision mechanical assemblies.