3/8" x 2-1/2" (50 Pack) Zinc Carriage Bolt Kit, Grade 307A by Makers Bolt
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- Diameter: 3/8" | Length: 2-1/2" | Head diameter: 0.813" | Nut diameter: 3/8" | Nut wrench size: 9/16" | Washer outside diameter: 1"
- Kit includes 50 carriage bolts, 50 USS thick washers, 50 hex nuts
- Zinc plated for moderate corrosion resistance
- Grade 307A carriage bolts, grade 2 hex nuts, and USS flat washers
- The flat head provides a semi-flush finish and is perfect for decks, gazebos, pergolas, and other heavy duty applications
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Select a product to estimate shipping.These zinc-plated carriage bolts are a durable and reliable fastening solution for a variety of outdoor and heavy-duty projects. Crafted from Grade 307A steel and finished with zinc plating, they offer excellent corrosion resistance, ensuring long-lasting performance.
Key Highlights
- Corrosion Resistant: Zinc plating provides protection against rust and weathering.
- Heavy-Duty Strength: Grade 307A steel offers reliable holding power for demanding applications.
- Versatile Head Style: The round head design creates a semi-flush finish, suitable for various projects.
- Complete Kit: Includes bolts, washers, and nuts for a convenient, all-in-one solution.
- Easy Installation: Nut wrench size of 9/16” allows for straightforward tightening.
Useful Facts
- Diameter: 3/8 inch
- Length: 2-1/2 inches
- Material: Zinc Plated Steel (Grade 307A)
- Thread Size: 3/8 - 16
- Hardware Included: 50 Bolts, 50 Washers, 50 Nuts
Good Fit For
- Deck Building
- Gazebo Construction
- Pergola Projects
- Heavy-Duty Outdoor Furniture
- General Workshop Applications
Product details





| Main Specification | |
|---|---|
| Manufacturer | Makers Bolt |
| Unit Count | 50 Count |
| Exterior Finish | Zinc |
| Metal Type | Zinc |
| Head Style | Round |
| Manufacturer Grade | Grade 307a |
| Thread Coverage | Fully Threaded |
| Outside Diameter | 1 Inches |
| Brand | Makers Bolt |
| Head Type | Carriage |
| UPC | 810074743884 |
| Fastener Type | Carriage Bolt |
| Item Diameter | 0.38 Inches |
| Number of Pieces | 50 |
| Fastener Size | 3/8 x 2-1/2 |
| Thread Size | 3/8"-16 |
| Material | Zinc |
| Colour | Silver |
| Thread Type | Right Hand |
| Product information | |
| Set Name | Zinc Carriage Bolt Kit (50 Piece) |
| Technical Details | |
| Part Number | CBK3840Z50 |
| Material Type | Zinc |
| Number Of Items | 50 |
| Thread Style | Right Hand |
| Thread Class | 1A |
| Compatible groove diameter | 0.38 inches |
| Item Hardness | Grade 2 |
| Style | |
| Finish Types | Zinc Plated |
| Others | |
| Product Type | Carriage Bolts |
| Grade Rating | Grade A307 |
| Size Name | 3/8 x 2-1/2 |
| Screw Head Style | Round |










