S-92929A124 4-40 x 3/16" 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
- Corrosion-resistant nylon construction eliminates rust and galvanic corrosion in harsh environments
- Full threading with Class 2A fit ensures maximum engagement and reliable fastening performance
- 82° countersink angle with standard flat head profile provides flush mounting for clean, professional finishes
- Wide temperature tolerance (-40° to 185°F) maintains performance across diverse operating conditions
- Electrical insulation properties prevent current conduction and short circuits in electronic applications
- ASME B18.6.3 compliance guarantees dimensional accuracy and interchangeability with standard components
- RoHS 3 compliance ensures environmental safety and regulatory acceptance for global markets
Professional Applications & Engineering Value
These nylon plastic flat head screws with 4-40 UNC coarse threading solve critical engineering challenges where metal fasteners fail. The non-conductive material prevents electrical shorts in control panels, electronic enclosures, and instrumentation while providing excellent chemical resistance against oils, solvents, and moisture. The standard 82° countersink angle and slotted drive allow for flush installation in plastic assemblies, automotive components, and food processing equipment where protruding fasteners could cause interference or contamination. With full threading and Class 2A thread fit, these screws deliver secure fastening in plastic and soft material applications where stripping and vibration loosening are common concerns.
Specification Summary & Compliance
Manufactured to precise inch system dimensions including 0.225" head diameter and 3/16" length with Class 2A thread fit tolerances. Features right-hand UNC coarse threads (4-40) and meets ASME B18.6.3 specifications for dimensional standards. Compliant with RoHS 3 (2015/863/EU) environmental directives and designed for industrial applications requiring reliable plastic fastening solutions.
