1/4" x 5" (100 Pack) Galvanized Carriage Bolt Kit Grade 307A Includes 1/4" USS Flat Washers (100 pcs) and 1/4"-20 Hex Nuts (100 pcs), Hot Dip Galvanized for Exterior Use by Makers Bolt
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- Diameter: 1/4" | Length: 5" | Head diameter: 0.578" | Nut diameter: 1/4"-20 | Nut wrench size: 7/16" | Washer outside diameter: 47/64"
- Kit includes 100 Grade 307A carriage bolts, 100 USS thick washers, 100 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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Select a product to estimate shipping.This kit provides a robust and reliable solution for a variety of outdoor projects. Featuring hot-dip galvanized carriage bolts, washers, and nuts, these fasteners are built to withstand the elements and deliver lasting performance. Perfect for DIY enthusiasts and professional builders alike, this set offers exceptional value and durability.
Key Highlights
- Corrosion Resistance: Hot-dip galvanized coating protects against rust and corrosion, extending the lifespan of your projects.
- Heavy-Duty Construction: Grade 307A steel provides superior strength and reliability for demanding applications.
- Complete Kit: Includes bolts, washers, and nuts, simplifying your project and reducing the need for multiple purchases.
- Versatile Use: Ideal for decks, gazebos, pergolas, and other outdoor structures.
- Easy Installation: 1/4"-20 thread size ensures compatibility with a wide range of tools and materials.
Useful Facts
- Diameter: 1/4" (6.35 millimeters)
- Length: 5" (127 millimeters)
- Head Diameter: 0.578" (14.7 millimeters)
- Nut Diameter: 1/4"-20
- Nut Wrench Size: 7/16"
- Washer Outside Diameter: 47/64" (1.19 millimeters)
- Kit Contents: 100 Grade 307A carriage bolts, 100 USS flat washers, 100 Grade 2/A hex nuts
Good Fit For
- Deck Building
- Gazebo Construction
- Pergola Projects
- Outdoor Furniture Assembly
- General DIY Repairs and Projects
Product details





| Main Specification | |
|---|---|
| Manufacturer | Makers Bolt |
| Unit Count | 100 Count |
| Exterior Finish | Hot-Dipped Galvanized |
| Head Style | Dome |
| Manufacturer Grade | Grade 307a |
| Thread Coverage | Fully Threaded |
| Outside Diameter | 0.73 inches |
| Brand | Makers Bolt |
| Head Type | Carriage |
| UPC | 810074744492 |
| Fastener Type | Carriage Bolt |
| Item Diameter | 6.35 Millimeters |
| Number of Pieces | 100 |
| Fastener Size | 1/4" x 5" |
| Thread Size | 1/4"-20 |
| Colour | Grey |
| Thread Type | Unc |
| Product information | |
| Set Name | 1/4" x 5" Galvanized Carriage Bolt Kit (100 Pack) |
| Technical Details | |
| Part Number | CBK2580GV100 |
| Number Of Items | 100 |
| Thread Style | Right Hand |
| Item Hardness | Grade 307A |
| Style | |
| Finish Types | Matte |
| Others | |
| Product Type | Carriage Bolts |
| Size Name | 1/4" x 5" |
| Screw Head Style | Dome |












