S-95966A130 4-40 x 3/8" Captive Panel Screws
Captive Panel 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 with 18-8 stainless steel construction, ideal for harsh industrial environments
- Exceptional tensile strength of 70,000 psi ensures reliable, long-lasting fastening under high-stress conditions
- Precision Class 3A thread fit guarantees secure, vibration-resistant connections in critical assemblies
- Knurled socket head with hex drive provides enhanced grip and easy installation with standard tools
- Partially threaded shank design allows for precise panel alignment and captive retention
- Coarse UNC threading enables quick assembly and reduced cross-threading risks
- Full RoHS 3 and REACH compliance meets stringent environmental regulations for global industrial use
Professional Applications & Engineering Value
This 4-40 UNC captive panel screw delivers critical engineering value in electronic enclosures, industrial control panels, and telecommunications equipment where vibration resistance and panel security are paramount. The 18-8 stainless steel material provides excellent corrosion resistance, eliminating fastener degradation in humid or chemically aggressive environments. The Class 3A thread fit ensures precise engagement with mating components, preventing loosening under dynamic loads while the partially threaded design maintains consistent panel gap control. With 70,000 psi tensile strength and coarse thread configuration, it solves common assembly challenges in high-volume production while meeting stringent RoHS 3 and REACH compliance requirements for modern manufacturing.
Specification Summary & Compliance
This captive panel screw maintains Class 3A thread fit tolerance per UNC standards with precise length tolerance of -0.03" to 0". Manufactured to UNC coarse thread specifications with 4-40 thread size and partial threading. Fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, ensuring suitability for global industrial applications requiring restricted substance control.
