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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

  • Diameter 5/16"
  • Length 3"
  • Head diameter 0. 703"
  • Nut diameter 5/16"-18
  • Nut wrench size 1/2"
  • Washer outside diameter 7/8", Kit includes 50 Grade 307A carriage bolts, 50 USS thick washers, 50 Grade 2/A hex nuts, Hot dip galvanized coating for superior corrosion resistance, Suitable for use in ACQ treaded lumber, The flat head provides a semi-flush finish and is perfect for decks, gazebos, pergolas, and other heavy duty applications, Meets or Exceeds ASME B18. 5, ASTM A307, ASME B18. 2. 2, ASTM A563, ASME B18. 21. 1, ASTM F2329.

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