S-93310A328 6-32 x 5/16" ASME B18.3, ASTM F879, 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
- Vibration-resistant locking with permanent Nylon Patch to prevent loosening in high-stress environments
- Superior corrosion resistance from 18-8 Stainless Steel construction for long-term reliability in harsh conditions
- High-strength performance with 70,000 psi tensile strength to withstand heavy mechanical loads
- Precise thread engagement through UNC coarse threads with Class 3A fit for secure fastening and reduced cross-threading risk
- Wide temperature tolerance from -70° to 250°F for stable performance across diverse operating environments
- Easy installation and removal with 5/64" hex drive and rounded button head design for accessible tool engagement
- Industry compliance assurance meeting multiple standards for quality and regulatory requirements
Professional Applications & Engineering Value
These nylon patch locking screws provide critical vibration resistance in demanding applications where secure fastening is paramount. The 18-8 stainless steel construction offers excellent corrosion resistance, making them ideal for industrial equipment, electronic enclosures, and outdoor machinery exposed to moisture and chemicals. The UNC coarse threads with Class 3A fit ensure rapid assembly with minimal cross-threading risk, while the rounded button head design provides a low-profile finish that won't snag on components. The permanent nylon patch thread locker maintains clamping force without requiring additional locking components, streamlining your assembly process while ensuring long-term joint integrity in vibrating systems.
Specification Summary & Compliance
This fastener features precision 6-32 UNC coarse threads with Class 3A fit for superior thread engagement and meets ASME B18.3, ASTM F879, and MIL-DTL-18240 specifications. The manufacturing process ensures dimensional accuracy with fully threaded design and Rockwell B55 hardness. Compliance with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations confirms environmental safety and restricted substance adherence for global market acceptance.
