S-92198A560 1/4"-20 x 4 1/2" 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 with 18-8 stainless steel construction, ideal for harsh industrial environments
- High tensile strength of 80,000 psi ensures reliable performance in demanding applications
- Rockwell B70 hardness provides superior durability and resistance to wear
- External hex drive design allows for easy installation and removal with standard tools
- UNC coarse threading with Class 2A fit enables quick assembly and secure fastening
- Partial threading configuration offers optimal grip strength for various material thicknesses
- Compliance with major regulations including RoHS 3 and REACH for environmental safety
Professional Applications & Engineering Value
This 18-8 stainless steel hex head screw delivers outstanding engineering value through its robust material composition and precise UNC coarse thread design. The combination of 80,000 psi tensile strength and Rockwell B70 hardness makes it particularly suitable for heavy machinery, structural assemblies, and industrial equipment where vibration resistance and long-term reliability are critical. The external hex drive ensures straightforward installation in confined spaces, while the partial threading provides enhanced clamping force distribution. As a corrosion resistant fastener meeting ASME B18.2.1 standards, it effectively addresses common industrial challenges including environmental exposure, mechanical stress, and regulatory compliance requirements across manufacturing, construction, and maintenance applications.
Specification Summary & Compliance
This 1/4"-20 hex head screw features precise Class 2A thread fit tolerance and UNC coarse thread spacing manufactured to ASME B18.2.1 specifications. The fastener maintains dimensional accuracy with a 4 1/2" length and 3/4" minimum thread length. Compliance includes RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, ensuring safe use across various industrial sectors while meeting international quality standards for inch system fasteners.
