S-92505A190 8-32 x 1/4" ASME B18.3, ASTM F912 Set Screws

Key Features & Benefits at a Glance

• Maximum holding power with Class 3A thread fit ensuring tight, secure fastening in demanding applications
• Superior corrosion resistance provided by the black oxide coating on alloy steel, extending service life in industrial environments
• Exceptional durability with Rockwell C45 hardness, maintaining structural integrity under high stress and vibration
• Secure tamper-resistant installation through the headless design with 5/64" hex drive, preventing unauthorized removal
• Enhanced grip and positioning due to the extended tip design, improving component alignment and reducing slippage
• Reliable coarse UNC threading for quick assembly and strong engagement in various materials
• Compliance with major industrial standards including ASME B18.3, ensuring consistent quality and interchangeability

Professional Applications & Engineering Value

This 8-32 UNC set screw is engineered to address critical fastening challenges in industrial machinery, automotive assemblies, and precision equipment. The black oxide alloy steel construction provides excellent resistance to rust and wear, while the Rockwell C45 hardness ensures the screw maintains its clamping force under continuous vibration and heavy loads. The headless design with hex drive allows for flush mounting in confined spaces, preventing interference with moving parts. The extended tip bites securely into shafts and collars, eliminating rotational slippage in power transmission systems. With coarse UNC threads and Class 3A fit, it delivers rapid installation and reliable performance in both soft and hard materials, making it ideal for permanent or semi-permanent fastening applications requiring zero maintenance.

Specification Summary & Compliance

This set screw features precision 8-32 UNC coarse threads with Class 3A thread fit for superior dimensional accuracy and consistent performance. Manufacturing adheres to ASME B18.3 specifications (ASTM F912), ensuring strict compliance with dimensional and mechanical requirements. The product is fully RoHS 3 (2015/863/EU) Compliant and REACH (EC 1907/2006) Compliant, meeting the latest environmental regulations for hazardous substances. Tip dimensions maintain tight tolerances (tip length: 0.043" with -0.005" to 0" tolerance; tip diameter: 0.109" with -0.006" to 0" tolerance) to guarantee reliable engagement and holding strength in critical applications.