New Arrivals/Restock

Grade 8 Hex Cap Screws Plain Finish 5/16"-18 x 3-3/4", 50 -Pieces, Coarse Thread Partially Threaded 0.875 inches of Thread by Newport Fasteners

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Product details

Management number 215636713 Release Date 2026/04/12 List Price $19.20 Model Number 215636713
Category

A cap screw made from medium carbon alloy stel and heat treated. Deisgned for use in high stress applications.

  • A grade 8 bolt is stronger than the more commonly used grade 5.
  • Grade 8 Steel
  • Coarse Thread / Partially Threaded 0.875 inches of Thread
  • Manufactured to ASME B18.2.1 & SAE J429 specifications
  • Tensile Strength: 150,000 psi. min, 1/4 – 1.5 inch diams)
Brand Newport Fasteners
Size Name 5/16-18 x 3 3/4 inch
Item Weight 5 Pounds
Part Number N451378-50
Thread Size 5/16-18
Thread Type Unc
Drive System External Hex
Grade Rating Grade 8
Manufacturer Newport Fasteners
Thread Style Right Hand
Fastener Type Hexagon Bolt
Item Hardness Grade 8
Material Type Alloy Steel
Exterior Finish Plain
Thread Coverage Coarse
Screw Head Style Hex
Set Screw Thread Type Coarse

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