S-93310A808 M4 x 16 mm MIL-DTL-18240 Thread-Locking Stainless Steel Button Head Hex-Drive Screws
Thread-Locking Stainless Steel Button Head Hex-Drive Screws
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Basic Information
Head Parameters
Dimensions
Thread Parameters
Tip & Drive Parameters
Material & Strength
Temperature & Environment
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Key Features & Benefits at a Glance
- Permanent vibration resistance with nylon patch thread locker that maintains secure fastening in demanding applications
- Superior corrosion protection through 18-8 stainless steel construction for extended service life in harsh environments
- High-strength performance with 80,000 psi tensile strength and Rockwell B96 hardness for reliable load-bearing capability
- Wide temperature tolerance from -70° to 250° F (-57° to 121° C) ensuring consistent locking performance across extreme conditions
- Easy installation and removal with 2.5mm hex drive providing positive torque transmission and reduced tool slippage
- Precision threading with Class 6g tolerance and coarse M4 x 0.7mm pitch for quick assembly and secure engagement
- Low-profile rounded head design offering flush mounting while maintaining high torque capability
Professional Applications & Engineering Value
These nylon patch locking rounded head screws deliver critical vibration resistance in industrial applications where secure fastening is paramount. The 18-8 stainless steel construction provides excellent corrosion resistance for machinery, electrical enclosures, and outdoor equipment exposed to moisture and chemicals. The fully threaded M4 metric screws with coarse 0.7mm pitch enable rapid assembly while maintaining strong holding power. The combination of hex drive and button head profile allows for high torque application in confined spaces, making these fasteners ideal for automotive assemblies, electronic chassis, and precision manufacturing equipment where vibration-induced loosening can compromise system integrity.
Specification Summary & Compliance
Manufactured to precise Class 6g thread fit tolerance with M4 x 0.7mm coarse threading and 16mm length. These screws meet MIL-DTL-18240 specifications for quality assurance and are fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental standards. The nylon patch thread locker provides permanent locking capability without compromising disassembly when required.
