S-91381A191 8-32 x 1/8" ASME B18.3 Set Screws

Key Features & Benefits at a Glance

• Superior surface protection with black-oxide coating that resists corrosion and extends service life in demanding industrial environments
• Precision Class 3A thread fit ensures tight tolerances and reliable, vibration-resistant fastening in critical applications
• Non-marring brass soft tip prevents damage to delicate surfaces while maintaining secure component positioning
• High-strength alloy steel construction with Rockwell C28 hardness provides excellent durability and resistance to wear
• Compact headless design with 5/64" hex drive allows for installation in confined spaces while maintaining tool accessibility
• Industry-standard UNC coarse threading enables quick installation and reliable performance in various materials
• Full regulatory compliance meets ASME B18.3 specifications and environmental standards including RoHS 3 and REACH

Professional Applications & Engineering Value

This 8-32 UNC set screw delivers exceptional engineering value in precision assembly applications where surface protection and reliable positioning are critical. The black-oxide alloy steel construction provides superior corrosion resistance while maintaining the Rockwell C28 hardness needed for long-term performance in high-vibration environments. The innovative brass soft tip design addresses common industry challenges by preventing surface damage to expensive components during installation and adjustment. As a headless set screw with 5/64" hex drive, it offers space-saving advantages in compact assemblies while maintaining easy access for maintenance. The Class 3A thread fit ensures precise engagement and holding power in applications ranging from precision machinery to electronic enclosures, making it an ideal solution for manufacturers requiring both performance and component protection.

Specification Summary & Compliance

This set screw features precision 8-32 UNC coarse threading with Class 3A thread fit for exacting dimensional accuracy. Manufacturing complies with ASME B18.3 specifications, ensuring consistent quality and performance. The product meets stringent environmental regulations including RoHS 3 (2015/863/EU) compliance and REACH (EC 1907/2006) compliance, making it suitable for global industrial applications with environmental responsibility requirements.