S-98625A740 1/4"-80 x 1 1/4" Set Screws

Key Features & Benefits at a Glance

• Superior torque transmission with 3/32" hex drive design for reliable installation and removal in confined spaces
• Exceptional thread engagement precision through Class 3A ultra-fine threading for vibration-resistant fastening in precision assemblies
• Corrosion-resistant performance with 303 stainless steel construction for extended service life in demanding environments
• Enhanced positioning accuracy with alloy steel ball tip that minimizes component damage during adjustment
• Space-saving headless design allowing flush mounting where protruding fastener heads are not feasible
• Regulatory compliance assurance meeting RoHS 3 and REACH standards for global industrial applications
• Right-hand thread configuration providing standard directional engagement for simplified installation procedures

Professional Applications & Engineering Value

This 1/4"-80 ultra fine thread set screw delivers critical engineering solutions where standard fasteners fall short. The 303 stainless steel construction provides excellent corrosion resistance while maintaining machinability, ideal for precision instruments, optical equipment, and aerospace components requiring fine adjustments. The headless hex drive design combined with Class 3A thread fit ensures maximum thread contact and vibration resistance in applications where minimal clearance and precise positioning are paramount. The alloy steel ball tip offers superior point contact that reduces marring on shaft surfaces while maintaining secure positioning. These ultra fine thread set screws are particularly valuable in calibration equipment, medical devices, and precision machinery where minute adjustments and reliable locking are essential for operational accuracy.

Specification Summary & Compliance

Manufactured to exacting standards with UNS thread form and Class 3A thread fit for superior dimensional accuracy and engagement. The 1/4"-80 ultra fine thread spacing provides exceptional holding power in precision applications. Full compliance with RoHS 3 (2015/863/EU) with exemption 6(c) and REACH (EC 1907/2006) regulations ensures environmental responsibility and global market acceptance. The right-hand thread direction and 1-1/4" length provide standardized installation across industrial applications requiring reliable set screw performance.