5/16"-18 x 4" Zinc Plated Grade 2 / A307 Steel Coarse Thread Carriage Bolts
These 5/16-18 x 4 Carriage Bolts from Midwest are crafted from low-carbon steel for exceptional durability and strength. Featuring a zinc finish, they offer moderate corrosion resistance, making them suitable for various indoor and outdoor applications. The square neck design prevents the bolt from turning during installation, ensuring a secure fit with the nut and washer. Ideal for woodworking and construction projects, these carriage bolts provide a clean, finished appearance thanks to their large, domed heads, while delivering maximum holding power in wood. Precise threading ensures smooth engagement with nuts, maintaining a strong and reliable connection under stress. Midwest carriage bolts are a dependable choice for professionals and DIY enthusiasts seeking quality fastening solutions.
Features
- Large, domed head provides a clean finished appearance and maximum holding power in wood
- Manufactured from low-carbon steel for durability and strength
- Zinc finish provides moderate corrosion resistance
- Precise threading provides smooth engagement with nuts to provide maximum holding power, ensuring components remain firmly connected under stress
- Square neck prevents bolt from turning with nut and washer during installation
Specifications
- Drive Size: N/A
- Tariff Code: 7318.15.2055
- Nominal Size: 5/16 in.-18 x 4 in.
- Product Line: GF
- Subclass: CS
- Drive Type: None
- Thread Size: 18
- Scale: Standard
- Retail Selling Unit Piece Count: 50
- Finish: Zinc
- Length: 4"
- Class: BL
- Diameter: 5/16"
- Thread Type: Coarse
- Material: Steel
- Country of Origin: China

















































