Imperial 20144 USS Hex Head Cap Screw, Grade 5, 3/8x1/2, Pkg/100

★★★★★ 4.5 41 reviews

US$0.07
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US$0.07
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Free shipping Free 30-day returns

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Product details

Management number 244259162 Release Date 2026/07/20 List Price US$0.07 Model Number 244259162
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Highlights:

  • Size: 3/8X1/2
  • Thread pitch: 3/8-16 UNC
  • Conforms to SAE Grade 5 physical and mechanical specifications
  • Zinc plated for corrosion resistance
  • Pack of 100

Technical Data:

  • Material and Mechanical Properties of SAE J429
  • Dimensions: ANSI/ASME B18.2.1 Hex Head Cap Screws
  • Threads: Radius Root Class 2A to ANSI/ASME B1.1
  • Proof Load: 1/4" - 1" Nominal Diameter 85,000 psi; over 1" Nominal Diameter 74,000 psi
  • Hardness: 1/4" - 1" Nominal Diameter Rockwell C25-C34; over 1" Nominal Diameter C19-C30
  • Tensile: 1/4" - 1" Nominal Diameter 120,000 psi (minimum) over 1" Nominal Diameter 105,000 psi (minimum)
  • Decarburation: SAE J121
  • Discontinuities: SAE J1061

 Rule of thumb to figure bolt thread length:

  • For bolts under 6": Twice the bolt diameter plus a 1/4"
  • For bolts over 6": Twice the bolt diameter plus a 1/2"
  • This gives you the approximate bolt thread length available

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