S-91970A724 1/2"-13 x 3" Plastic Hex Head Screws
Plastic Hex Head 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
- Superior corrosion resistance from nylon plastic construction, eliminating rust in harsh environments
- Excellent electrical insulation properties for safe use in electrical applications
- Reliable performance across extreme temperatures (-40° to 185°F) without compromising integrity
- Easy installation with standard tools thanks to external hex drive and familiar UNC coarse threading
- Secure fastening with precise Class 2A thread fit ensuring consistent engagement and vibration resistance
- Partial threading design provides optimal grip strength while reducing material stress
- RoHS 3 compliance meets environmental standards for industrial applications
Professional Applications & Engineering Value
These nylon hex head screws deliver critical advantages in demanding industrial and electrical environments where metal fasteners would fail. The black nylon plastic construction provides inherent corrosion resistance, making them ideal for chemical processing, marine applications, and outdoor installations. Their electrical insulation properties prevent short circuits in electrical enclosures, control panels, and power distribution systems. The UNC coarse thread with Class 2A fit ensures quick installation and reliable performance in vibration-prone applications, while the partial threading design concentrates clamping force where needed most. Operating reliably from -40° to 185°F, these screws maintain dimensional stability across extreme temperature cycles that would compromise other plastic fasteners.
Specification Summary & Compliance
This 1/2"-13 x 3" nylon hex head screw features UNC coarse threading with precise Class 2A thread fit per ASME B1.1 standards, ensuring consistent engagement and reliable performance. The partially threaded design provides 1-1/4" minimum thread length with external hex drive for standard tool compatibility. Manufactured from high-grade nylon plastic with RoHS 3 (2015/863/EU) compliance, these screws meet environmental regulations while delivering mechanical performance suitable for industrial fastening applications requiring corrosion resistance and electrical insulation.
