S-95966A140 4-40 x 1/2" 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
- Precise Class 3A thread fit ensures reliable engagement and vibration resistance in panel assemblies
- High tensile strength of 70,000 psi provides exceptional load-bearing capacity for demanding applications
- Knurled socket head with 3/32" hex drive offers secure tool grip and prevents slipping during installation
- Partially threaded design allows for controlled clamping force and consistent panel alignment
- UNC coarse threading enables quick assembly and reduced cross-threading risks
- Full regulatory compliance with RoHS 3 and REACH standards for global industrial use
Professional Applications & Engineering Value
This 18-8 stainless steel captive panel screw delivers exceptional performance in electronic enclosures, machinery panels, and industrial equipment where vibration resistance and corrosion protection are critical. The Class 3A thread fit maintains precise tolerances under dynamic loads, while the knurled socket head prevents tool slippage during repeated maintenance cycles. Engineered with 4-40 UNC coarse threading, it enables rapid installation in high-volume production environments while the partial threading design ensures consistent panel spacing and eliminates over-tightening issues. The combination of 70,000 psi tensile strength and right-hand thread direction makes it ideal for securing access panels in transportation, telecommunications, and industrial control systems.
Specification Summary & Compliance
This captive panel screw features precision 4-40 UNC coarse threading with Class 3A thread fit for superior engagement. Manufacturing tolerances include length tolerance of -0.03" to 0" and thread diameter of 0.112". The fastener is manufactured in compliance with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring environmental safety and chemical substance restrictions are met for industrial applications worldwide.
