5/16"-18 x 4" Hot Dip Galvanized Steel Coarse Thread Hex Cap Screws
These 5/16-18 x 4 Coarse Hex Bolts are crafted from Grade 8 steel, offering exceptional strength and durability for demanding applications. Featuring a hot-dip galvanized finish, they are well-suited for exterior use and treated wood projects, providing reliable corrosion resistance. The hex head with an integrated washer ensures easy installation and removal using standard wrenches or sockets, while the precise threading guarantees smooth engagement with nuts for maximum holding power. Ideal for construction, structural, and outdoor applications, these bolts deliver dependable performance where secure fastening is critical. Whether used in commercial building projects or residential outdoor structures, their robust design and corrosion-resistant coating make them a versatile choice for professionals and DIY enthusiasts alike. Manufactured by Midwest, these bolts combine quality materials and thoughtful design to meet the highest standards of strength and reliability.
Features
- Hex head with integrated washer allows for easy installation and removal with standard wrenches or sockets and improved holding power
- Precise threading provides smooth engagement with nuts to provide maximum holding power, ensuring components remain firmly connected under stress
- Hot-dip galvanized coating is suitable for exterior and treated wood applications
- Manufactured from Grade 8 steel for reliable strength and long‑lasting performance in demanding applications.
- Head stamping provides easy class/grade identification even after installation
Specifications
- Length: 4"
- Thread Type: Coarse
- Thread Size: 18
- Tariff Code: 7318.15.8000
- Diameter: 5/16"
- Nominal Size: 5/16 in.-18 x 4 in.
- Finish: Hot Dipped Galvanized
- Product Line: GF
- Drive Type: Hex
- Material: Steel
- Country of Origin: Thailand
- Drive Size: 1/2" Wrench/Socket
- Scale: Standard
- Subclass: HC
- Class: BG
- Retail Selling Unit Piece Count: 50