S-93075A249 10-24 x 1 1/4" ASME B18.6.3 Low-Strength Steel Hex Head Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with zinc plating that protects against rust and extends service life in demanding environments
• High tensile strength of 60,000 PSI ensures reliable, durable fastening under heavy loads and vibration
• Rockwell B69 hardness provides excellent wear resistance and maintains thread integrity during repeated use
• Coarse UNC threads with Class 2A fit allow for quick installation and easy alignment in various materials
• External hex drive design offers secure tool engagement and high torque capability without stripping
• Fully threaded 1 1/4" length maximizes grip range and provides consistent holding power across the entire fastener
• Compliance with ASME B18.6.3 and environmental regulations guarantees quality, safety, and regulatory acceptance

Professional Applications & Engineering Value

These 10-24 UNC hex head screws are engineered to solve critical fastening challenges in industrial and mechanical assemblies. The steel construction with zinc plating combats corrosion in humid or outdoor settings, while the coarse thread design prevents cross-threading and ensures secure engagement in soft metals or plastics. With a 60,000 PSI tensile strength and Rockwell B69 hardness, they withstand high-stress applications like machinery frames, automotive components, and structural supports. The external hex drive facilitates efficient installation with standard tools, reducing assembly time and improving productivity in maintenance and production lines.

Specification Summary & Compliance

This hex head screw features precise Class 2A thread fit per UNC standards, ensuring consistent performance and interchangeability. It meets ASME B18.6.3 specifications for dimensional accuracy and mechanical properties. The product is RoHS 3 (2015/863/EU) Compliant and REACH (EC 1907/2006) Compliant, confirming adherence to environmental and safety regulations for hazardous substances.