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5/8"-11 x 2-1/2" (25 Pack) Zinc Carriage Bolt for Exterior Use, Commercial Grade 307A, Full Thread - by Fastener Depot

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Product details

Management number 220320277 Release Date 2026/05/03 List Price US$19.72 Model Number 220320277
Category

Zinc carriage bolts are used for securely fastening wood and metal in projects like decks, fences, docks, and playground equipment, especially where a smooth, snag-free finish is desired. The zinc plating provides a moderate level of corrosion resistance for outdoor use, while the bolt's square neck locks into the wood to prevent spinning and allows for one-person installation from one side. Key uses Woodworking: Commonly used to join wood beams and panels in projects such as building decks, docks, fences, and outdoor furniture. Play equipment: Ideal for playground equipment because the smooth, rounded head prevents snagging. Trailer and vehicle applications: Used for wood floors, stake sides, and tie-downs on trailers and other automotive projects. General construction: Employed in a variety of construction and repair jobs, especially where security and a clean appearance are important. Benefits of zinc plating Corrosion resistance: Zinc plating offers moderate protection against rust and corrosion, making the bolts suitable for many outdoor applications. Durability: The zinc coating adds a layer of durability to the bolt. Benefits of the carriage bolt design Self-locking: The square neck under the head of the bolt bites into the wood when tightened, preventing the bolt from turning and making installation easier for a single person. Security: The smooth, domed head has no drive slots, meaning the bolt can only be tightened or loosened from the nut side. Snag-free finish: The flush, rounded head reduces the risk of catching on other materials.

  • Coarse Thread
  • Self-Locking Head Design
  • Zinc Plating Finish For Superior Corrosion Resistance
  • Commercial Grade 307A
  • Threaded Length: Fully Threaded
  • Minimum Tensile Strength: 60,000 PSI / Hardness: 69 to 100 HRB
  • Minimum Coating Thickness: 0.0002” (5 Microns)
  • Specifications Met/Exceeded: Coating Specifications: ASTM F1941/F1941M Fe/Zn 3AN or Fe/Zn 5AN; Steel Mechanical Specifications: ASTM A307 Grade A ; Dimensional Specifications: ASME B18.5
  • RoHS Compliant
UPC 680699498151
Brand Fastener Depot
Color Silver
Model FD489141
Head Type Self Locking
Size Name 5/8"-11 x 2-1/2"
Metal Type Low Carbon Steel
Unit Count 25.0 Count
Item Weight 9 Pounds
Part Number FD489141
Thread Size 5/8"-11
Thread Type Unc
Grade Rating Grade A
Manufacturer Fastener Depot, LLC
Thread Style Right Hand
Fastener Type Carriage Bolt
Item Diameter 5/8" Inches
Material Type Alloy Steel
Exterior Finish Zinc
Item Dimensions 2.5 x 0.5 x 1.06 inches
Number Of Items 25
Thread Coverage Fully Threaded
Number of Pieces 25
Screw Head Style Round
Manufacturer Grade 307A
Maximum Shear Strength 60,000 PSI

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