S-93310A806 M4 x 8 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
- Secure Vibration Resistance – Permanent nylon patch locking ensures reliable fastening in high-vibration environments, maintaining integrity from -70° to 250°F.
- Superior Corrosion Resistance – Crafted from 18-8 stainless steel for excellent durability in harsh or humid conditions, reducing maintenance needs.
- High Tensile Strength – Withstands up to 80,000 psi tensile loads, providing dependable performance in demanding mechanical assemblies.
- Easy Installation with Hex Drive – 2.5 mm hex drive allows for quick, tool-friendly tightening without cam-out, saving assembly time.
- Precision Thread Fit – Class 6g coarse threads ensure smooth engagement and consistent clamping force in metric applications.
- Low-Profile, Rounded Button Head – Offers a sleek finish that minimizes snagging while distributing load evenly.
- Broad Regulatory Compliance – Meets MIL-DTL-18240, RoHS 3, and REACH standards, ensuring safety and suitability for global industrial use.
Professional Applications & Engineering Value
This M4 nylon patch locking screw addresses critical challenges in industrial settings where vibration loosening and environmental exposure compromise fastener reliability. The 18-8 stainless steel construction provides inherent resistance to rust and chemical degradation, ideal for machinery, electronics enclosures, and outdoor equipment. The coarse metric thread with Class 6g tolerance ensures rapid installation and secure fit in metals and composites, while the hex drive design enables high-torque application without stripping. Combined with the nylon patch thread locker, it delivers permanent locking without the need for additional adhesives, reducing assembly steps and enhancing long-term performance in automotive, aerospace, and heavy equipment applications.
Specification Summary & Compliance
This fully threaded M4 x 0.7 mm pitch screw features a Class 6g thread fit per metric standards, with a rounded button head profile and 8 mm length. It complies with MIL-DTL-18240 specifications for quality assurance, and is certified RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) compliant, ensuring adherence to environmental and safety regulations.
