S-94735A725 4-40 x 1" Plastic Pan Head Phillips Screws
Plastic Pan Head Phillips 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 eliminates rust and chemical degradation in harsh environments
- Excellent electrical insulation properties prevent short circuits in electronic assemblies
- Wide temperature tolerance from -40° to 185°F ensures reliable performance across diverse operating conditions
- Class 2A thread fit provides consistent, reliable fastening with standard UNC coarse threading
- Phillips No. 1 drive design enables efficient installation with common tools while minimizing cam-out
- Lightweight nylon construction reduces overall assembly weight without compromising strength
- Full threading along 1" length offers maximum engagement and adjustment flexibility
Professional Applications & Engineering Value
These 4-40 UNC coarse thread nylon plastic screws with pan head design solve critical challenges in sensitive applications where metal fasteners fail. The nylon material provides inherent corrosion resistance, eliminating galvanic corrosion when mating with dissimilar metals and making them ideal for electronics assembly, automotive components, and industrial equipment exposed to moisture or chemicals. The electrical insulation properties prevent current leakage in circuit boards and electrical enclosures, while the Phillips drive system ensures quick, secure installation. The rounded pan head profile distributes clamping force evenly without damaging softer materials, and the coarse UNC threading maintains holding power in plastic and composite substrates where fine threads might strip.
Specification Summary & Compliance
This 1" length screw features 4-40 UNC coarse threads with Class 2A thread fit for standard industrial applications. The fully threaded design ensures maximum engagement, while the 0.215" head diameter and standard pan head profile provide reliable fastening performance. Manufactured to meet RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) compliance standards, these screws are suitable for regulated industries requiring environmental and safety certifications.
