S-92200A106 4-40 x 1/4" MS16995-9, NAS1352C04-4, NASM16995, FF-S-86 Mil. Spec. 18-8 Stainless Steel Socket Head Screws
Mil. Spec. 18-8 Stainless Steel Socket Head 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
- Exceptional corrosion resistance with 18-8 stainless steel construction and passivated finish for long-term reliability in harsh environments
- Superior thread engagement with Class 3A fit ensuring precise, vibration-resistant connections in critical assemblies
- High load-bearing capability delivering 80,000 psi tensile strength for demanding mechanical applications
- Optimized drive efficiency through hex socket design with 3/32" drive size for secure tool engagement and reduced stripping risk
- Full-threaded design providing maximum grip length and uniform stress distribution along the entire fastener
- Right-hand coarse threads enabling quick installation and removal while maintaining structural integrity
- Comprehensive regulatory compliance meeting RoHS 3 and REACH requirements for global manufacturing applications
Professional Applications & Engineering Value
This 4-40 thread socket head cap screw delivers exceptional engineering value across industrial applications where corrosion resistance, precision threading, and high tensile strength are critical. The 18-8 stainless steel construction with passivated finish provides superior protection against oxidation and chemical exposure, making it ideal for machinery, electronic enclosures, and automotive components exposed to moisture or aggressive environments. The UNRC coarse thread configuration with Class 3A fit ensures reliable engagement in both metallic and composite materials, while the hex drive design allows for high-torque installation without cam-out. These fully threaded fasteners maintain consistent clamping force in high-vibration settings, solving common loosening issues in dynamic assemblies.
Specification Summary & Compliance
This socket head cap screw features precision 4-40 UNRC threads with Class 3A thread fit for superior dimensional accuracy. Manufacturing complies with MS16995-9, NAS1352C04-4, NASM16995, and Fed. Spec. FF-S-86 standards. The fastener is fully RoHS 3 (2015/863/EU) Compliant and REACH (EC 1907/2006) Compliant, meeting current environmental regulations for industrial use.
