S-95861A114 4-40 x 1/2" Venting Stainless Steel Button Head Hex-Drive Screws
Venting Stainless Steel Button Head Hex-Drive 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 for long-lasting performance in harsh industrial environments
- Exceptional tensile strength of 80,000 psi ensures reliable fastening under high-stress conditions without failure
- Precise Class 3A thread fit guarantees secure mating with nuts and threaded components, reducing assembly issues
- Vented design with 0.044" diameter prevents pressure buildup and allows for easier installation in sealed applications
- Hex drive (1/16") compatibility provides efficient torque transmission and reduces tool slippage during installation
- Fully threaded 1/2" length offers maximum grip and adjustment flexibility across various material thicknesses
- Compliance with RoHS 3 and REACH regulations ensures environmental safety and meets international industry standards
Professional Applications & Engineering Value
Engineered for demanding industrial applications, these 4-40 UNC rounded head screws deliver critical performance advantages. The 18-8 stainless steel material provides excellent corrosion resistance, making them ideal for electronics, machinery, and outdoor equipment where moisture exposure is a concern. The Class 3A thread fit with coarse thread spacing ensures rapid assembly and vibration resistance, while the vented screw design prevents air pressure entrapment in precision instruments and sealed enclosures. With Rockwell B81 hardness and 80,000 psi tensile strength, these fully threaded screws maintain integrity under mechanical stress, offering reliable fastening solutions for OEM manufacturers and maintenance professionals requiring durable, right-hand thread components.
Specification Summary & Compliance
This rounded head screw features precise UNC thread form with Class 3A thread fit for superior dimensional accuracy. Manufacturing adheres to standard inch system specifications including 1/2" length, 4-40 thread size, and coarse thread spacing. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring environmental safety and suitability for global industrial supply chains.
