S-90251A252 10-32 x 1/4" ASME B18.3 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
- Permanent vibration resistance with nylon patch thread locking that maintains secure fastening under dynamic loads
- Superior corrosion protection through 18-8 stainless steel construction for long-term reliability in harsh environments
- Precision thread engagement with Class 3A fit ensuring consistent clamping force and reduced assembly variation
- Wide temperature compatibility from -50° to 250°F for diverse industrial applications without performance degradation
- Optimized torque transmission via 3/32" hex drive design preventing tool slippage and ensuring proper installation
- Enhanced grip surface with cup tip configuration providing superior biting action on shaft components
- Consistent mechanical properties with Rockwell B80 hardness balancing durability and machinability
Professional Applications & Engineering Value
This 10-32 UNF set screw delivers critical vibration resistance in precision assemblies where loosening can cause equipment failure. The nylon patch locking technology creates permanent friction against Class 3A threads, eliminating the need for secondary locking devices in automated manufacturing. Engineered from 18-8 stainless steel, it withstands corrosive environments while maintaining Rockwell B80 hardness for repeated adjustments. The cup tip design concentrates pressure on shafts and collars, preventing rotational slip in power transmission systems. Ideal for securing bearings, pulleys, and gears in machinery, this headless set screw provides reliable fastening where space constraints and vibration are primary concerns.
Specification Summary & Compliance
Manufactured to ASME B18.3 specifications with Class 3A thread fit ensuring precision tolerance for critical assemblies. Features 10-32 UNF fine threads with right-hand orientation and 0.19" thread diameter. Compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations for environmental safety. The nylon patch thread locker maintains performance across the specified temperature range while meeting industrial fastener standards for reliability and consistency.
