S-92198A834 5/8"-11 x 14" ASME B18.2.1 18-8 Stainless Steel Hex Head Screws

18-8 Stainless Steel Hex Head Screws

0244FA00578 18-8 Stainless Steel Hex Head Screws
0244FA00578 18-8 Stainless Steel Hex Head Screws

Image may differ from product. See technical specification for details.

Part No.
Part No. 0244FA00578
Equivalent to mcmaster :
92198A834

Basic Information

System of Measurement Inch

Head Parameters

Head Type Hex
Head Width 15/16"
Head Height 25/64"

Dimensions

Length 14"

Thread Parameters

Thread Type UNC
Thread Size 5/8"-11
Thread Diameter 0.625"
Thread Spacing Coarse
Min Thread Length 1 3/4"
Thread Direction Right Hand
Thread Fit Class 2A
Threading Partially Threaded

Tip & Drive Parameters

Drive Style External Hex

Material & Strength

Material 18-8 Stainless Steel
Hardness Rockwell B70
Tensile Strength 80000 psi

Temperature & Environment

REACH Compliant
RoHS Compliant
Specifications Met ASME B18.2.1
Technical Drawings No drawings available at the moment, will be launched soon
In Stock
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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-strength performance delivering 80,000 PSI tensile strength for demanding heavy-duty applications
  • Superior durability with Rockwell B70 hardness to resist wear and deformation under load
  • Secure fastening through partially threaded design with 1 3/4" minimum thread length for optimal grip
  • Easy installation and removal with external hex drive and 15/16" head width for standard wrench compatibility
  • Reliable thread engagement with Class 2A thread fit and UNC coarse threads preventing cross-threading
  • Industry compliance assurance meeting ASME B18.2.1 standards for dimensional accuracy and performance

Professional Applications & Engineering Value

This heavy-duty hex head screw provides critical engineering solutions for industrial applications where corrosion resistance and structural integrity are paramount. The 18-8 Stainless Steel composition offers superior protection against rust and chemical exposure in marine, chemical processing, and outdoor installations. The partially threaded design with 1 3/4" minimum thread length ensures maximum clamping force while preventing thread damage in through-holes. With UNC coarse threads and Class 2A thread fit, this fastener delivers reliable performance in vibration-prone environments, making it ideal for structural steel connections, heavy machinery assembly, and infrastructure projects requiring 80,000 PSI tensile strength and long-term reliability.

Specification Summary & Compliance

This 5/8"-11 UNC hex head screw features precise Class 2A thread fit tolerances and complies with ASME B18.2.1 dimensional standards. The manufacturing process adheres to strict quality controls ensuring consistent Rockwell B70 hardness and mechanical properties. Environmental compliance includes RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, confirming the absence of restricted substances. The inch system measurement, right-hand thread direction, and external hex drive configuration provide standardized compatibility across industrial applications.

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