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5/16 x 3 in Galvanized Carriage Bolt Kit (50 pcs) with 50 washers & 50 hex nuts

Makers Bolt ★ 3.8/5 · ItemOracle Score Budget

$35 USD
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5/16" x 3" (50 Pack) Galvanized Carriage Bolt Kit Grade 307A Includes 5/16" USS Flat Washers (50 pcs) and 5/16"-18 Hex Nuts (50 pcs), Hot Dip Galvanized for Exterior Use by Makers Bolt

Includes 50 Grade 307A carriage bolts, 50 USS washers, and 50 hex nuts with hot-dip galvanized coating for exterior use. Flat head provides semi-flush finish for decks, gazebos, and heavy-duty projects. customer insight unavailable

Highlights

  • complete hardware kit
  • hot-dip galvanized exterior use
  • semi-flush flat head design

Pros

  • hot-dip galvanized coating for corrosion resistance
  • includes complete hardware kit (bolts, washers, nuts)
  • flat head for semi-flush finish
  • suitable for exterior use
  • meets multiple industry standards

Cons

  • customer insights unavailable
  • limited to 5/16 inch diameter and 3 inch length
  • rating and reviews limited in data

Best For

  • deck construction
  • gazebo framing
  • pergola assembly
  • outdoor furniture projects
  • heavy-duty exterior fastenings
  • ACQ lumber applications

Features

  • 5/16 inch diameter carriage bolts with 3 inch length
  • Includes 50 grade 307A carriage bolts, 50 USS washers, 50 grade 2A hex nuts
  • Hot dip galvanized coating for exterior corrosion resistance
  • Flat head provides a semi-flush finish for decks and similar structures
  • Meets or exceeds ASME B18.5, ASTM A307, ASME B18.2.2 specifications

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