S-98625A364 1/4"-100 x 3 1/2" Set Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with 303 Stainless Steel construction, ideal for harsh industrial environments
• Exceptional holding power provided by Class 3A thread fit, ensuring precise engagement and vibration resistance
• Enhanced torque transmission through 3/32" hex drive design, preventing tool slippage during installation
• Reduced surface damage with ball tip design using alloy steel, minimizing marring on contacted components
• Fine adjustment capability with ultra fine 1/4"-100 thread spacing for precise positioning applications
• Space-saving installation through headless design, perfect for confined spaces and flush mounting requirements
• Regulatory compliance assurance meeting RoHS 3 and REACH standards for global industrial applications

Professional Applications & Engineering Value

This ultra fine thread set screw delivers exceptional engineering value in applications requiring precise component positioning and reliable fastening. The 303 Stainless Steel construction provides excellent corrosion resistance, making it suitable for machinery, automotive, and electronic assemblies exposed to moisture or chemicals. The Class 3A thread fit ensures tight tolerances and secure fastening in high-vibration environments, while the ball tip design with alloy steel core distributes pressure evenly, preventing damage to shafts and collars. The headless configuration and 3/32" hex drive allow for compact installations where space is limited, offering engineers a versatile solution for permanent or semi-permanent fastening requirements in precision equipment and industrial machinery.

Specification Summary & Compliance

This precision fastener features 1/4"-100 ultra fine thread with Class 3A thread fit according to UNS standards, ensuring exact dimensional accuracy and reliable performance. The 3-1/2" length and 0.25" thread diameter provide consistent engagement across applications. Manufacturing complies with RoHS 3 (2015/863/EU) with exemption 6(c) and REACH (EC 1907/2006) regulations, confirming environmental compliance for industrial use. The right-hand thread direction and alloy steel ball tip (0.156" diameter) complete the specification profile for this high-performance set screw.