S-98625A680 1/4"-80 x 3/4" Set Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with 303 Stainless Steel construction for long-lasting performance in demanding environments
• Exceptional vibration resistance provided by the ultra fine 1/4"-80 thread pitch and Class 3A fit for secure, permanent fastening
• Enhanced installation convenience with hex drive design allowing for easy access in confined spaces and consistent torque application
• Reduced surface damage to mating components thanks to the alloy steel ball tip that distributes pressure evenly
• Reliable headless design ensures flush mounting where protruding fastener heads are not permissible
• Precision manufacturing guarantees consistent 0.25" thread diameter and 3/4" length for uniform performance across applications
• Environmental compliance assurance with RoHS 3 and REACH regulations met for global industrial use

Professional Applications & Engineering Value

This 1/4"-80 ultra fine thread set screw delivers exceptional engineering value through its 303 stainless steel composition and precision Class 3A thread fit. The combination of hex drive configuration and ball tip design addresses critical industrial challenges by providing secure fastening in vibration-prone applications while minimizing damage to precision-machined components. The headless construction enables seamless integration in assemblies where space constraints prohibit protruding fastener heads. Particularly valuable in precision machinery, optical equipment, and electronic enclosures, this set screw maintains consistent clamping force through its ultra fine threading, preventing loosening under dynamic loads. The alloy steel ball tip ensures positive engagement with mating surfaces without marring critical components, making it ideal for repeated adjustments in manufacturing fixtures and precision alignment systems.

Specification Summary & Compliance

This precision fastener features 1/4"-80 UNS ultra fine threads with Class 3A thread fit for exceptional dimensional accuracy and tight tolerances. The 3/4" length and 0.25" thread diameter maintain consistent specifications across production lots. Manufacturing complies with industry standards for set screw applications, while environmental compliance includes RoHS 3 (2015/863/EU) with exemption 6(c) and full REACH (EC 1907/2006) adherence, ensuring suitability for global industrial markets and regulated environments.