S-93310A105 M4 x 10 mm MIL-DTL-18240 Thread-Locking Stainless Steel Button Head Hex-Drive Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with 18-8 Stainless Steel construction, ideal for harsh environments and long-term durability.
• High tensile strength of 80,000 psi ensures reliable performance under significant load and stress in demanding applications.
• Secure vibration-resistant locking provided by the nylon patch thread locker, maintaining clamp load integrity from -70° to 250° F.
• Easy installation and high torque capability with the 2.5mm hex drive and rounded button head design, reducing assembly time and tool slippage.
• Precise thread fit (Class 6g) and coarse pitch (0.7mm) for quick engagement and reduced cross-threading risks in metric assemblies.
• Full threading along the 10mm length allows for maximum adjustability and holding power in various material thicknesses.
• Compliance with MIL-DTL-18240, RoHS 3, and REACH ensures adherence to strict industrial and environmental standards for global supply chain compatibility.

Professional Applications & Engineering Value

This M4 metric rounded head screw is engineered to address critical challenges in industrial assembly, such as vibration loosening and corrosion-induced failure. The 18-8 Stainless Steel material offers excellent resistance to rust and oxidation, making it suitable for outdoor, marine, and chemical-exposed environments. The integrated nylon patch thread locker secures the fastener against shocks and thermal cycling, eliminating the need for separate locking washers and reducing maintenance costs. With a coarse thread pitch and Class 6g thread fit, it ensures rapid installation and reliable performance in metal, plastic, and composite materials, commonly used in machinery, electronics enclosures, and automotive components. The combination of hex drive design and fully threaded shank provides superior torque transmission and clamping force, enhancing overall assembly integrity and lifespan.

Specification Summary & Compliance

This fastener features precise metric threading (M4 x 0.7mm) with a Class 6g thread fit per ISO standards, ensuring dimensional accuracy and interchangeability. It is manufactured in compliance with MIL-DTL-18240 specifications for quality and performance. The product is RoHS 3 (2015/863/EU) Compliant and REACH (EC 1907/2006) Compliant, confirming it is free from hazardous substances and suitable for use in regulated industries worldwide.