S-93310A238 10-24 x 1/4" ASME B18.3, ASTM F879, MIL-DTL-18240 Thread-Locking Stainless Steel Button Head Hex-Drive Screws

Key Features & Benefits at a Glance

• Vibration-resistant locking with permanent nylon patch ensures reliable fastening in high-stress environments, eliminating the need for secondary locking devices.
• Superior corrosion resistance from 18-8 stainless steel construction maintains integrity in harsh or humid conditions, reducing maintenance and replacement costs.
• High tensile strength of 70,000 psi provides exceptional load-bearing capacity for demanding mechanical assemblies.
• Wide temperature tolerance (-70° to 250°F) allows consistent performance across diverse industrial and outdoor applications.
• Precise Class 3A thread fit ensures smooth installation and secure engagement with mating components, minimizing cross-threading risks.
• Hex drive design offers superior torque transmission and tool access in confined spaces, speeding up assembly processes.
• Full threading along the 1/4" length maximizes grip and adjustment flexibility across varied material thicknesses.

Professional Applications & Engineering Value

This 10-24 UNC nylon patch locking rounded head screw is engineered to address critical challenges in industrial fastening, such as vibration-induced loosening and environmental degradation. The 18-8 stainless steel material provides excellent resistance to oxidation and chemical exposure, making it ideal for machinery, automotive, and outdoor equipment where durability is paramount. The integrated nylon patch locking element creates a permanent friction fit that secures assemblies without requiring additional washers or adhesives, streamlining production. With its coarse thread and Class 3A fit, it ensures quick, reliable installation in metals and plastics, reducing assembly time and improving operational safety in high-vibration settings like motors, enclosures, and structural frameworks.

Specification Summary & Compliance

This screw features a 10-24 UNC coarse thread with Class 3A precision fit for consistent engagement. It is manufactured in compliance with ASME B18.3, ASTM F879, and MIL-DTL-18240 standards, ensuring dimensional accuracy and performance reliability. The product is fully RoHS 3 (2015/863/EU) Compliant and REACH (EC 1907/2006) Compliant, meeting environmental and safety regulations for global industrial use.