[1 PC] A307 Grade A Steel Hot Dipped Galvanized Coarse Carriage Bolts 1/2-13 x 20

Mutual ScrewSKU: 50320CAGBB

Price:
Sale price$7.51per 1( $7.51 each)
Pieces 1
Measurement type Inch
Thread size 1/2-13
Diameter 1/2
Length 20
Material A307 Grade A Steel
Finish Hot Dipped Galvanized
Head style Carriage
Threads per inch 13
Weight 1.0 lb

WARNING: This product can expose you to chemicals including lead and lead compounds, which are known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to https://www.P65Warnings.ca.gov.

Description

A307 Grade A Steel Hot Dipped Galvanized Coarse Carriage Bolts 1/2-13 x 20 are heavy-duty fasteners designed for durable wood-to-wood and wood-to-metal connections in outdoor and structural projects. Featuring a hot-dipped galvanized coating, these carriage bolts resist corrosion even in moisture-rich environments.

Key benefits

  • Corrosion resistance: hot-dipped galvanized finish protects against rust in outdoor and humid conditions.
  • Strong material: crafted from A307 Grade A steel for reliable strength and long service life.
  • Easy installation: carriage bolts with a square under-head prevent turning during nut tightening for quick assembly.
  • Versatile size: 1/2 inch diameter, 13 UNC coarse thread, and 20 inches long to suit a wide range of applications.

Specifications

  • Diameter: 1/2 inch
  • Thread: 13 UNC (coarse)
  • Length: 20 inches
  • Material: A307 Grade A steel
  • Coating: Hot-dipped galvanized
  • Head type: Carriage bolt with square under-head to resist turning

Applications

  • Decks, fences, and outdoor wooden structures
  • Wood-to-metal connections in framing and scaffolding
  • Industrial and agricultural equipment assemblies

For projects demanding durable fasteners with superior corrosion resistance, these A307 Grade A carriage bolts deliver reliable performance and long-term value. Ensure proper fit by verifying hole size and using corresponding nuts and washers as needed for secure assemblies.

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If you’re not sure that this product is right for you, give us a call!
800-222-0324

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