S-90291A826 10-32 ASME B18.3 Set Screws

Key Features & Benefits at a Glance

• Superior vibration resistance with nylon 6/6 plastic tip that prevents loosening under dynamic loads
• Exceptional temperature stability maintaining performance from -50°F to 250°F in demanding environments
• Precise Class 3A thread fit ensures tight tolerances and reliable fastening in critical applications
• Corrosion-resistant 18-8 stainless steel construction provides long-lasting durability in harsh conditions
• Headless hex drive design allows for flush mounting and easy installation in confined spaces
• Rockwell B80 hardness delivers excellent mechanical strength and wear resistance
• Soft nylon tip protection prevents damage to mating surfaces while maintaining secure grip

Professional Applications & Engineering Value

This 10-32 UNF Class 3A nylon tip set screw delivers exceptional engineering value in applications where vibration resistance and surface protection are critical. The 18-8 stainless steel body provides excellent corrosion resistance, while the fine UNF threads with Class 3A fit ensure precise engagement in machinery, automotive components, and precision instruments. The nylon 6/6 plastic tip eliminates metal-to-metal contact, preventing surface damage on shafts, collars, and pulleys while maintaining secure positioning. The headless hex drive design with 3/32" drive size enables installation in space-constrained assemblies, making it ideal for aerospace, medical equipment, and industrial automation where reliability and component protection are paramount.

Specification Summary & Compliance

This set screw features 10-32 UNF fine threads with Class 3A precision tolerance for superior fit and performance. Manufactured to ASME B18.3 specifications, it ensures dimensional accuracy and interchangeability. The product is fully RoHS 3 (2015/863/EU) Compliant and meets REACH (EC 1907/2006) requirements, confirming environmental and safety standards compliance for global industrial applications.