S-90276A839 10-32 x 2 1/4" ASME B18.6.3 Steel Round Head Slotted Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with zinc-plated steel construction, extending service life in demanding industrial environments
• Reliable high-strength performance with 60,000 psi tensile strength and Rockwell B69 hardness for heavy-duty applications
• Precision thread engagement with Class 2A fit and UNF fine threads ensuring secure, vibration-resistant connections
• Optimized partial threading design allows for controlled clamping force and easier assembly in specific applications
• Industry-standard compliance with ASME B18.6.3 specifications guarantees consistent quality and interchangeability
• Easy installation and removal with standard slotted drive design compatible with common hand tools
• Environmental regulation compliance meeting RoHS 3 and REACH standards for safe, sustainable manufacturing

Professional Applications & Engineering Value

These 10-32 UNF zinc-plated steel screws deliver exceptional engineering value in industrial fastening applications where corrosion resistance and mechanical strength are critical. The rounded head design with slotted drive provides reliable performance in machinery assembly, electrical enclosures, and automotive components where vibration resistance is essential. The fine thread spacing and Class 2A thread fit ensure precise engagement in tapped holes, reducing the risk of cross-threading while maintaining consistent clamping force. The partial threading allows for optimal stress distribution, making these fasteners ideal for applications requiring specific grip lengths. With 60,000 psi tensile strength and Rockwell B69 hardness, these screws withstand significant mechanical loads while the zinc plating provides durable protection against environmental factors in manufacturing facilities, outdoor equipment, and harsh operating conditions.

Specification Summary & Compliance

This 10-32 UNF slotted screw features precise Class 2A thread fit with right-hand threading and fine thread spacing, manufactured to exact dimensional requirements. The fastener complies with ASME B18.6.3 mechanical and dimensional specifications, ensuring industry-standard performance and interchangeability. Environmental compliance includes RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, confirming the absence of restricted hazardous substances. The 2 1/4" length with 1 1/2" minimum thread length provides consistent engagement depth, while the 0.359" head diameter and standard rounded head profile deliver optimal bearing surface for secure fastening applications.