S-92800A258 1/2"-20 x 6 1/2" 18-8 Stainless Steel Hex Head Screws

18-8 Stainless Steel Hex Head Screws

0244FA01046 18-8 Stainless Steel Hex Head Screws
0244FA01046 18-8 Stainless Steel Hex Head Screws

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

Part No.
Part No. 0244FA01046
Equivalent to mcmaster :
92800A258

Basic Information

System of Measurement Inch

Head Parameters

Head Type Hex
Head Width 3/4"
Head Height 5/16"

Dimensions

Length 6 1/2"

Thread Parameters

Thread Type UNF
Thread Size 1/2"-20
Thread Diameter 0.5"
Thread Spacing Fine
Min Thread Length 1 1/2"
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
Technical Drawings No drawings available at the moment, will be launched soon
In Stock
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Key Features & Benefits at a Glance

  • Superior corrosion resistance with 18-8 stainless steel construction, ideal for harsh environments and long-term reliability.
  • High tensile strength of 80,000 psi ensures dependable load-bearing capacity for demanding industrial applications.
  • Rockwell B70 hardness provides excellent durability and resistance to wear and deformation.
  • External hex drive and hex head design allows for easy installation and high torque application with standard tools.
  • Class 2A thread fit offers consistent, precise engagement for secure fastening and vibration resistance.
  • Partial threading provides optimal grip and clamping force where full threading isn't required, enhancing assembly efficiency.
  • Compliance with RoHS 3 and REACH ensures environmental safety and regulatory acceptance in global markets.

Professional Applications & Engineering Value

This 1/2"-20 UNF hex head screw is engineered to address critical challenges in heavy machinery, structural assemblies, and equipment manufacturing. The 18-8 stainless steel material delivers exceptional corrosion resistance, reducing maintenance costs and extending service life in moist or chemically aggressive settings. With a fine UNF thread and Class 2A fit, it ensures tight, reliable fastening that minimizes loosening under dynamic loads. The external hex drive facilitates quick installation and removal, boosting productivity in assembly lines. Its partial threading design is ideal for applications requiring controlled clamp load, such as securing brackets or mounting heavy components, providing engineers with a versatile, high-strength industrial fastener solution.

Specification Summary & Compliance

This screw adheres to inch system dimensions with a 1/2"-20 UNF fine thread and Class 2A thread fit for precise dimensional accuracy. It meets manufacturing standards for external hex drive and right-hand thread configurations. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006), ensuring it is free from hazardous substances and suitable for use in regulated industries.

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