S-98625A427 6-80 x 1 1/4" Set Screws
Set Screws
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Basic Information
Head Parameters
Dimensions
Thread Parameters
Tip & Drive Parameters
Material & Strength
Temperature & Environment
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Key Features & Benefits at a Glance
- Superior corrosion resistance with 303 Stainless Steel construction, ideal for harsh industrial environments
- Precise thread engagement with Class 3A fit and ultra fine 6-80 threads for maximum holding power in delicate assemblies
- Secure tamper-resistant fastening thanks to the headless hex design requiring specialized 5/64" hex tools
- Enhanced component grip from the durable alloy steel ball tip that minimizes surface damage during installation
- Reliable right-hand thread operation following UNS standards for consistent performance across applications
- Extended service life with 1-1/4" length providing ample engagement depth for critical connections
- Environmental compliance assurance meeting RoHS 3 and REACH regulations for global industrial use
Professional Applications & Engineering Value
This headless hex set screw delivers exceptional value in precision engineering applications where space constraints and vibration resistance are critical. The 303 Stainless Steel material provides excellent corrosion resistance for machinery operating in humid or chemical-exposed environments, while the ultra fine 6-80 thread spacing ensures maximum thread contact in thin-walled components. The ball tip design concentrates clamping force while minimizing damage to shaft surfaces, making it ideal for precision positioning of gears, pulleys, and collars. With its Class 3A thread fit and right-hand UNS threads, this fastener maintains consistent clamping force in high-vibration applications across aerospace, medical device manufacturing, and precision instrumentation industries.
Specification Summary & Compliance
This set screw maintains Class 3A thread fit tolerance with 6-80 UNS ultra fine threads measuring 0.138" in diameter. The 1-1/4" length and 5/64" hex drive conform to industrial standards for headless fasteners. Manufacturing complies with RoHS 3 (2015/863/EU) with exemption 6(c) and REACH (EC 1907/2006) regulations, ensuring environmental compliance for industrial applications worldwide.
