S-92240A559 1/4"-20 x 4 1/4" 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
- Superior corrosion resistance with 18-8 Stainless Steel construction, ideal for harsh environments and reducing maintenance costs.
- High tensile strength of 80,000 psi ensures reliable, long-lasting fastening under significant mechanical stress.
- Coarse UNC threading with Class 2A fit provides quick assembly and excellent vibration resistance in industrial applications.
- External hex drive and hex head design allows for easy installation and high torque application with standard tools.
- Full threading along the 4 1/4" length offers maximum grip and adjustability in a wide range of material thicknesses.
- Compliance with ASME B18.2.1 guarantees dimensional accuracy and interchangeability for professional engineering projects.
- Rockwell B70 hardness provides excellent durability and resistance to wear and deformation.
Professional Applications & Engineering Value
This 1/4"-20 x 4 1/4" 18-8 Stainless Steel Hex Head Screw is engineered to solve critical fastening challenges in demanding sectors like machinery assembly, construction, and marine equipment. Its coarse UNC thread and Class 2A fit ensure rapid installation and superior holding power, minimizing the risk of loosening under vibration. The external hex drive facilitates high-torque tightening, making it suitable for heavy-duty applications where reliability is paramount. Made from corrosion-resistant 18-8 stainless steel, it withstands exposure to moisture, chemicals, and extreme temperatures, reducing downtime and replacement costs. Fully threaded for versatile use, this screw delivers consistent performance in structural frameworks, industrial fixtures, and OEM equipment, ensuring long-term operational integrity.
Specification Summary & Compliance
This hex head screw features a 1/4"-20 UNC coarse thread with Class 2A dimensional tolerance for precise fit and ease of assembly. It is manufactured in compliance with ASME B18.2.1 standards, ensuring consistent quality and performance. The product is also RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) compliant, meeting environmental and safety regulations for industrial use.
