S-98625A223 1/4"-100 x 1 1/4" Set Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with 303 stainless steel construction for extended service life in demanding environments
• Exceptional holding power provided by alloy steel ball tip that creates secure, permanent fastening connections
• Precise thread engagement with Class 3A fit ensuring tight tolerances and reliable performance in critical applications
• Maximum torque transmission through 3/32" hex drive design that prevents tool slippage and damage during installation
• Ultra-fine thread spacing (1/4"-100) enabling fine adjustments and secure fastening in thin materials
• Headless design allowing for flush mounting where space constraints or rotating components are concerns
• Environmental compliance meeting RoHS 3 and REACH regulations for safe use in regulated industries

Professional Applications & Engineering Value

This 303 stainless steel set screw with ultra fine thread configuration addresses critical engineering challenges in precision assemblies. The headless hex design combined with Class 3A thread fit provides exceptional dimensional accuracy for applications requiring minimal clearance and reliable positioning. The corrosion-resistant 303 stainless steel material ensures long-term performance in harsh environments, while the alloy steel ball tip creates permanent seating in shafts, collars, and gears without damaging components. Ideal for precision machinery, optical equipment, and aerospace applications where ultra fine threading enables micro-adjustments and secure fastening in thin-walled materials. The right-hand UNS thread standard ensures compatibility with existing industrial components and tooling systems.

Specification Summary & Compliance

This precision fastener features 1/4"-100 ultra fine thread spacing with Class 3A thread fit per UNS standards, ensuring tight dimensional tolerances for critical applications. The 1 1/4" length provides optimal engagement depth while the 3/32" hex drive accommodates standard industrial tooling. Manufacturing complies with RoHS 3 (2015/863/EU) with exemption 6(c) and REACH (EC 1907/2006) regulations, meeting current environmental standards for industrial use. The combination of 303 stainless steel body and alloy steel ball tip (0.156" diameter) delivers both corrosion resistance and superior holding capability.