S-92185A119 4-40 x 1 1/4" Super-Corrosion-Resistant 316 Stainless Steel Socket Head Screws
Super-Corrosion-Resistant 316 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
- Superior corrosion resistance with 316 stainless steel construction and passivated finish for extended service life in harsh environments
- Precise thread engagement with Class 3A fit ensuring reliable fastening and vibration resistance in critical assemblies
- High mechanical strength offering 70,000 psi tensile strength and Rockwell B70 hardness for demanding applications
- Optimized drive performance with standard hex socket and 3/32" drive size providing secure torque transmission
- Full thread coverage along the 1 1/4" length for maximum grip and load distribution
- Regulatory compliance with RoHS 3 and REACH standards for safe use in regulated industries
- Coarse UNC threading enabling quick installation and reduced cross-threading risks
Professional Applications & Engineering Value
These 316 stainless steel socket head cap screws deliver exceptional performance in corrosive and high-stress environments where fastener reliability is critical. The combination of passivated finish and marine-grade stainless steel provides outstanding protection against chemical exposure and atmospheric corrosion, making them ideal for marine equipment, chemical processing, and food-grade applications. The Class 3A thread fit ensures precise mating with tapped holes, eliminating play and maintaining clamp force under vibration. With 70,000 psi tensile strength and full threading, these 4-40 UNC coarse thread fasteners distribute loads evenly while the hex socket drive prevents cam-out during high-torque installation, making them essential for precision machinery, instrumentation, and aerospace assemblies where dimensional stability and corrosion resistance are paramount.
Specification Summary & Compliance
This socket head cap screw features precision 4-40 UNC coarse threads with Class 3A fit tolerance for superior thread engagement. Manufacturing complies with industry standards for dimensional accuracy, including proper head diameter (0.183"), head height (0.112"), and drive size (3/32"). The fastener meets RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) compliance requirements, ensuring environmental safety and regulatory acceptance for industrial applications worldwide.
