S-90291A238 10-24 ASME B18.3 Set Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with 18-8 stainless steel construction for long-lasting performance in harsh environments
• Exceptional vibration resistance provided by the green nylon 6/6 plastic tip that prevents loosening under dynamic loads
• Precise thread engagement with Class 3A thread fit ensuring reliable, secure fastening in critical applications
• Wide temperature tolerance from -50° to 250°F (-45° to 121°C) for stable performance across diverse operating conditions
• Easy installation and removal with 3/32" hex drive design that accommodates standard tools while maintaining headless profile
• Reduced surface damage to mating components thanks to the soft nylon tip that protects finished surfaces
• Industry-standard compliance meeting ASME B18.3 specifications for consistent quality and interchangeability

Professional Applications & Engineering Value

This 10-24 UNC set screw delivers exceptional engineering value in applications requiring secure positioning of components on shafts, axles, and within assemblies. The 18-8 stainless steel construction provides excellent corrosion resistance, making it ideal for machinery exposed to moisture, chemicals, or outdoor elements. The coarse UNC thread design ensures rapid installation and superior holding power in various materials, while the nylon 6/6 plastic tip offers vibration damping that prevents unintended loosening in dynamic systems. With its headless configuration and 3/32" hex drive, this fastener maintains clean profiles in tight spaces while allowing sufficient torque application. These features make it particularly valuable in precision machinery, automotive components, and industrial equipment where reliable, long-term fastening solutions are critical to operational safety and performance.

Specification Summary & Compliance

This set screw features precision 10-24 UNC coarse threads with Class 3A thread fit for superior dimensional accuracy and engagement. The fastener measures 1/4" in length with a 0.19" thread diameter and incorporates a 0.094" diameter nylon tip that extends 0.047" beyond the screw end. Manufactured to ASME B18.3 standards and heat treated to Rockwell B80 hardness, this component ensures consistent performance and interchangeability. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, making it suitable for global industrial applications with strict material restrictions.