S-92240A558 1/4"-20 x 4" ASME B18.2.1 18-8 Stainless Steel Hex Head Screws
18-8 Stainless Steel 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 from 18-8 stainless steel material, ideal for harsh environments and outdoor applications.
- High tensile strength of 80,000 PSI ensures reliable performance under heavy loads and mechanical stress.
- Rockwell B70 hardness provides excellent durability and resistance to wear and deformation.
- Coarse UNC threading with Class 2A fit allows for quick assembly and secure fastening in various materials.
- Fully threaded design offers maximum grip and holding power along the entire 4" length.
- External hex drive and hex head enable easy installation with standard tools and high torque application.
- Compliance with ASME B18.2.1, RoHS 3, and REACH guarantees quality, safety, and environmental standards for industrial use.
Professional Applications & Engineering Value
Engineered for demanding industrial settings, this 1/4"-20 x 4" 18-8 stainless steel hex head screw delivers robust performance where reliability is critical. The corrosion-resistant 18-8 stainless steel composition prevents rust and degradation in humid or chemical-exposed environments, reducing maintenance costs and downtime. With a coarse UNC thread and Class 2A fit, it ensures rapid installation and vibration resistance in machinery, construction, and automotive assemblies. The fully threaded design and 80,000 PSI tensile strength provide uniform load distribution and structural integrity, making it ideal for heavy-duty fastening in frames, equipment, and infrastructure projects where long-term stability is essential.
Specification Summary & Compliance
This screw adheres to precise dimensional standards with UNC coarse thread, 1/4"-20 thread size, and Class 2A thread fit for consistent accuracy. It meets ASME B18.2.1 manufacturing specifications, ensuring interchangeability and reliability. Additionally, it is RoHS 3 (2015/863/EU) Compliant and REACH (EC 1907/2006) Compliant, confirming adherence to environmental and safety regulations for industrial components.
