S-91205A245 10-24 x 3/4" ASME B18.3, ASTM A574 Alloy Steel Thread-Locking Socket Head Screws

Key Features & Benefits at a Glance

• Exceptional tensile strength of 170,000 psi ensures reliable performance in high-stress applications, reducing the risk of fastener failure.
• Permanent Nylon Patch thread locker provides consistent vibration resistance from -70° to 250°F, maintaining joint integrity without requiring additional adhesives.
• Class 3A thread fit delivers superior precision and tighter tolerances for secure fastening in critical assemblies.
• Black-oxide coating on alloy steel enhances corrosion resistance and durability, extending service life in harsh industrial environments.
• Hex socket drive design allows for high torque application and easy installation in confined spaces, improving assembly efficiency.
• Coarse UNC threads enable quicker installation and better performance in materials prone to stripping or cross-threading.
• Full threading along the 3/4" length offers versatile positioning and uniform clamping force across the entire fastener.

Professional Applications & Engineering Value

This Black-Oxide Alloy Steel Socket Head Cap Screw is engineered to address common industrial challenges such as vibration-induced loosening and material fatigue. The 10-24 UNC coarse thread design ensures rapid, secure engagement in metals and engineered plastics, reducing installation time while minimizing thread damage. The integrated Nylon Patch thread locker eliminates the need for separate locking washers or liquid adhesives, providing reliable resistance to dynamic loads and thermal cycling from -70° to 250°F. With its 170,000 psi tensile strength and Rockwell C37 hardness, this fastener maintains clamp load under extreme conditions, making it ideal for heavy machinery, automotive assemblies, and precision equipment where joint integrity is critical. The hex socket drive accommodates high torque requirements while preventing cam-out, ensuring consistent performance in space-constrained applications.

Specification Summary & Compliance

This socket head cap screw features Class 3A thread fit for precise engagement and 10-24 UNC coarse threads with right-hand direction. Manufactured to ASME B18.3 specifications using ASTM A574 alloy steel, it ensures dimensional accuracy and mechanical consistency. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, meeting environmental and safety standards for industrial use worldwide.