New Arrivals/Restock

5/16"-18 x 4 Carriage Bolts Grade 5 COARSE ZINC CR+3, Full Thread, Size: 5/16"-18, Length: 4", Head: Round, Drive: External Square, Steel, Zinc, Thread Type: UNC (Inch) (Quantity: 25)

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New  $90.00
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Product details

Management number 211257356 Release Date 2026/04/04 List Price $36.00 Model Number 211257356
Category

Jet Fitting & Supply Corporation has been selling CARRIAGE BOLTS since 1946. Trust in Jet to deliver you high quality fasteners!

  • Jet Fitting & Supply Corporation has been providing fasteners since 1946. Feel safe when buying from Jet!
  • Carriage Bolts, also called Coach Bolts or Round Head Square Neck Bolts, from Jet Fitting have a dome shaped head and square neck.
  • Carriage Bolts are typically used for wood construction like docks, swing sets, outdoor decks along with other surfaces where a smooth surface is needed
  • The square shoulder under a round head allows the bolt to resist turning when the nut is tightened.
  • All carriage bolts under 6 inches are fully threaded, lengths over 6" always have 6 inches of thread.
Brand Jet Fitting & Supply Corp
Color zinc
Size Name 4 inches
Part Number JB492024C
Thread Type Unc
Drive System Square
Grade Rating Grade 5
Manufacturer Jet Fitting & Supply Corp.
Fastener Type Carriage Bolt
Item Hardness Grade 5
Material Type Alloy Steel
Thread Coverage Fully Threaded
Screw Head Style Round
Manufacturer Grade Grade 5

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