S-95966A644 4-40 x 3/4" 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 holding power with 70,000 psi tensile strength for secure panel retention under vibration
- Precise thread engagement with Class 3A fit ensuring reliable, consistent fastening in high-tolerance applications
- Enhanced grip and tool engagement from knurled socket head design, preventing slippage during installation
- Optimized for quick assembly with coarse UNC threading and right-hand direction for rapid installation cycles
- Secure partial threading design prevents over-tightening and maintains proper panel alignment
- Full regulatory compliance with RoHS 3 and REACH standards for global market acceptance
Professional Applications & Engineering Value
Engineered for demanding panel applications where vibration resistance and corrosion protection are critical, this 4-40 UNC captive panel screw delivers exceptional performance in electronics enclosures, industrial control panels, and telecommunications equipment. The 18-8 stainless steel composition provides excellent durability against environmental factors, while the Class 3A thread fit ensures precise mating with threaded inserts and captive hardware. The knurled socket head with 3/32" hex drive offers superior torque transmission, reducing installation time and preventing tool slippage in confined spaces. These partially threaded fasteners maintain consistent panel gap control, making them ideal for applications requiring repeated access while ensuring reliable captive panel security.
Specification Summary & Compliance
This captive panel screw features precision 4-40 UNC coarse threading with Class 3A thread fit for superior dimensional accuracy. Manufacturing specifications include a length tolerance of -0.03" to 0" and partial threading design. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, ensuring safe use in electronic and industrial applications worldwide.
