S-92929A126 4-40 x 1/4" ASME B18.6.3 Plastic Slotted Flat Head Screws
Plastic Slotted Flat 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 ensures long-lasting performance in harsh environments without rust or degradation
- Excellent electrical insulation properties prevent current leakage and short circuits in sensitive electronic applications
- Precision Class 2A thread fit guarantees consistent engagement and reliable fastening in assembly operations
- Wide temperature tolerance (-40° to 185°F) maintains structural integrity across diverse operating conditions
- Standard 82° countersink angle provides flush mounting for clean, professional finishes in visible applications
- RoHS 3 compliance meets international environmental standards for hazardous substance restrictions
- Fully threaded coarse UNC design delivers maximum holding power and rapid installation efficiency
Professional Applications & Engineering Value
Engineered for precision assemblies requiring non-conductive properties and chemical resistance, these nylon plastic flat head screws solve critical challenges in electrical enclosures, marine equipment, and food processing machinery. The 4-40 UNC coarse thread configuration combined with Class 2A thread fit ensures vibration-resistant fastening while the slotted drive accommodates standard installation tools. The fully threaded design provides consistent clamping force along the entire 1/4" length, making these plastic fasteners ideal for applications where metal screws would cause galvanic corrosion or interfere with sensitive electronics. The standard 82° countersink enables seamless surface integration in panels and components.
Specification Summary & Compliance
Manufactured to ASME B18.6.3 specifications with Class 2A thread fit tolerance for consistent threading performance. These inch system fasteners feature 4-40 UNC coarse threads with right-hand direction and comply with RoHS 3 (2015/863/EU) environmental regulations. The flat head profile with standard 82° countersink angle ensures proper seating in prepared holes while the slotted drive style provides universal tool compatibility.
