3/8-16 x 2 3/4 Hex Head Cap Screws, Steel Grade 5, Zinc Plating (Quantity: 400 pcs) - Coarse Thread UNC, Partially Threaded, Length: 2 3/4 Inch, Thread Size: 3/8 Inch

★★★★★ 4.6 33 reviews

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Management number 211257122 Release Date 2026/04/04 List Price $44.80 Model Number 211257122
Category

When selecting a nut to be used for a graded hex cap screw, keep in mind that the nut should have the same grade as the bolt/screw. For instance, a Grade 5 Hex Cap Screw should only utilize a Grade 5 hex nut

  • Hex Cap Screws (also called hex head cap screws, hex bolt, or hex head bolt) Manufactured to ASME B18.2.1 and SAE J429 specifications
  • Features a thick, hexagonal head with chamfered threads
  • Washer face under the head to provide ample bearing surface when tightened with a wrench
  • Made from medium carbon steel. You will notice that it’s hexagon head surface is smooth with no markings
  • Tensile Strength: 120,000 psi 1/4 thru 1 inch diams, all lengths) - 105,000 psi. (1-1/8 thru 1.5 inch diams, all lengths)
Brand Newport Fasteners
Size Name 3/8-16 x 2 3/4 inch
Item Weight 38 Pounds
Part Number 681627-400
Thread Size 3/8-16
Thread Type Unc
Drive System External Hex
Grade Rating Grade 5
Manufacturer Newport Fasteners
Thread Style Right Hand
Fastener Type Hexagon Bolt
Item Hardness Grade 5
Material Type Alloy Steel
Exterior Finish Zinc
Thread Coverage Coarse
Screw Head Style Hex
Manufacturer Grade Grade 5
Set Screw Thread Type Coarse

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