S-91381A337 10-32 x 3/16" ASME B18.3 Set Screws

Key Features & Benefits at a Glance

• Superior Grip with Minimal Damage: Brass soft tip provides excellent holding power while preventing marring and surface damage to components
• Precision Thread Fit: Class 3A thread tolerance ensures tight, reliable fastening with consistent performance in critical applications
• Enhanced Corrosion Resistance: Black-oxide coating on alloy steel offers improved protection against rust and environmental degradation
• High-Strength Construction: Rockwell C28 hardness provides optimal balance of strength and durability for demanding industrial environments
• Space-Saving Design: Headless configuration with 3/32" hex drive allows installation in confined spaces while maintaining tool accessibility
• Fine Thread Advantage: 10-32 UNF fine threading delivers superior vibration resistance and precise adjustment capabilities
• Regulatory Compliance: Meets ASME B18.3 standards and environmental regulations for worry-free industrial deployment

Professional Applications & Engineering Value

This black-oxide alloy steel set screw with 10-32 UNF fine threading and Class 3A fit addresses critical engineering challenges in precision assembly applications. The innovative brass soft tip design prevents component damage while maintaining superior clamping force, making it ideal for securing gears, pulleys, and collars on shafts without compromising surface integrity. The headless configuration with 3/32" hex drive enables installation in space-constrained environments common in machinery, automotive, and aerospace applications. The Rockwell C28 hardness ensures the screw maintains its structural integrity under vibration and load stress, while the black-oxide surface treatment provides essential corrosion protection in industrial environments. These features combine to deliver reliable, long-term performance in precision positioning and securing applications where movement prevention is critical.

Specification Summary & Compliance

This set screw features precision 10-32 UNF fine threads with Class 3A fit for exceptional dimensional accuracy and tight tolerances. Manufactured to ASME B18.3 specifications, the screw ensures consistent performance and interchangeability. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, meeting the latest industry standards for hazardous substance restrictions. The black-oxide alloy steel construction combined with Rockwell C28 hardness provides the optimal balance of strength and corrosion resistance required for industrial applications.