S-90780A546 1/4"-20 x 1 1/2" ASTM F468, MIL-S-1222 Nickel Alloy Hex Head Screws
Nickel Alloy Hex 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 400 Nickel material, ideal for harsh industrial environments and marine applications.
- High tensile strength of 80,000 psi ensures reliable performance under heavy loads and mechanical stress.
- Class 2A thread fit provides consistent, precise engagement for secure fastening and vibration resistance.
- Coarse UNC threading allows for quick assembly and disassembly, reducing installation time in maintenance and production.
- Partially threaded design offers optimal clamp force distribution, minimizing material stress and improving joint integrity.
- External hex drive and hex head enable easy tightening with standard tools, enhancing efficiency in confined spaces.
- Compliance with ASTM F468 and MIL-S-1222 guarantees adherence to rigorous industrial and military specifications for quality assurance.
Professional Applications & Engineering Value
This 1/4"-20 UNC hex head screw is engineered to address critical challenges in demanding sectors such as aerospace, marine, and heavy machinery. The 400 Nickel composition provides superior resistance to corrosion and oxidation, extending service life in humid or chemically aggressive settings. With a coarse thread and Class 2A fit, it ensures rapid, secure installation while maintaining alignment under dynamic loads. The partial threading design reduces the risk of thread stripping and distributes clamping force evenly, making it ideal for applications requiring high-strength, durable fasteners that withstand vibration and thermal cycling. Its compliance with ASTM F468 and MIL-S-1222 standards underscores its reliability for critical assemblies.
Specification Summary & Compliance
This screw features a 1/4"-20 UNC coarse thread with Class 2A thread fit for precise dimensional accuracy, ensuring consistent performance in inch-based systems. It meets ASTM F468 and MIL-S-1222 specifications for material and manufacturing quality. Additionally, it is RoHS 3 (2015/863/EU) Compliant and REACH (EC 1907/2006) Compliant, confirming adherence to environmental and safety regulations for hazardous substance restrictions.
