Carriage Bolt, Square Neck, 5/16"-18, 4 in L, Steel, Grade 2, Hot Dipped Galvanized, 50 PK MPN:U08307.031.0400
Carriage Bolt, Square Neck, 5/16"-18, 4 in L, Steel, Grade 2, Hot Dipped Galvanized, 50 PK
This 5/16in-18 carriage bolt is a versatile fastening solution for a variety of applications. With a square neck and hot dipped galvanized finish, it provides excellent corrosion resistance and can withstand harsh environments. The bolt's UNC (coarse) thread type ensures a secure hold in Grade 2 galvanized nuts, making it ideal for use in construction, manufacturing, and DIY projects. Its 4-inch length and 74,000 psi tensile strength provide added durability and stability. The 50-pack quantity makes it a convenient choice for projects requiring multiple fasteners, reducing labor and material costs.
Top product features:
- Square Neck Design
- Right Hand Thread Direction
- Hot Dipped Galvanized Finish for Corrosion Resistance
Top product applications:
- Deck Building
- Furniture Assembly
- Industrial Equipment Assembly
Carriage Bolt, Inch, Neck Type Square, Basic Material Steel, Material Grade Grade A, Fastener Finish Hot Dipped Galvanized, Dia./Thread Size 5/16 In.-18, Fastener Length 4 in, Fastener Thread Direction Right Hand, Fastener Thread Type UNC (Coarse), ASME B18.5, Drill Size 21/64 in, Head Dia. 0.688 in, Head Height 11/64 in, Head Type Round, Square Height 0.156 in, Square Width 0.307 in, Tensile Strength 74,000 psi, For Use With Grade 2 Galvanized Nuts, Package Quantity 50
Additional Information
- Country of Origin: ZZ
- Drop Ship Item: No
- Blind Ship Eligible: No
- LTL Freight Required: No
- Lead Time: Ships in 1 days
- Minimum Order Quantity: 1
- Unit of Measure: PK
- Package Length: 12.99
- Package Width: 6.77
- Package Height: 1.00
- Package Weight: 4.06
Product info last updated on March 1, 2026 12:13am UTC
Category: Screws and Bolts