S-93310A144 6-32 x 1/4" 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 nylon patch ensures secure fastening in high-stress environments, preventing loosening under dynamic loads
- Superior corrosion resistance from 18-8 stainless steel construction maintains integrity in harsh industrial conditions
- High-strength performance with 70,000 psi tensile strength and Rockwell B55 hardness for demanding applications
- Precise thread engagement through Class 3A fit UNC coarse threading enables reliable installation and load distribution
- Wide temperature tolerance from -70° to 250°F allows consistent performance across diverse operating environments
- Easy installation and removal with 5/64" hex drive design provides superior torque transmission and tool accessibility
- Full thread coverage along the 1/4" length maximizes grip strength and connection stability
Professional Applications & Engineering Value
Engineered for critical fastening applications, these nylon patch locking screws deliver exceptional vibration resistance where traditional fasteners fail. The 18-8 stainless steel construction provides inherent corrosion protection for industrial equipment, electronic enclosures, and machinery subjected to moisture or chemical exposure. With coarse UNC threading and Class 3A fit, these rounded head screws ensure rapid installation and reliable thread engagement in soft materials and sheet metal assemblies. The hex drive compatibility allows for high-torque applications while the button head profile offers a low-profile finish that minimizes snagging in confined spaces. These characteristics make them ideal for aerospace components, automotive systems, and precision instrumentation requiring secure, long-term fastening solutions.
Specification Summary & Compliance
This 6-32 x 1/4" screw features precision UNC coarse threading with Class 3A fit tolerance for superior thread engagement. Manufacturing complies with ASME B18.3, ASTM F879, and MIL-DTL-18240 specifications, ensuring consistent quality and performance. The product is fully RoHS 3 (2015/863/EU) Compliant and REACH (EC 1907/2006) Compliant, meeting international environmental and safety standards for industrial use.
