5/16"-18 x 3-1/2" Hot Dip Galvanized Steel Coarse Thread Hex Cap Screws
These 5/16-18 x 3-1/2 Coarse Hex Bolts from Midwest are crafted from durable Grade 8 steel, delivering exceptional strength and long-lasting performance for demanding projects. Featuring a hot-dip galvanized finish, these bolts are well-suited for exterior and treated wood applications, providing excellent corrosion resistance. The hex head design with an integrated washer ensures easy installation and removal using standard wrenches or sockets, while also enhancing holding power. Designed with precise threading, these bolts offer smooth engagement with nuts to maintain a secure, firm connection under stress. The head stamping allows for quick class and grade identification even after installation, making them a reliable choice for construction, woodworking, and industrial applications. Midwest’s 5/16-18 x 3-1/2 Coarse Hex Bolts combine strength, durability, and ease of use, making them ideal for professionals and DIY enthusiasts alike.
Features
- Head stamping provides easy class/grade identification even after installation
- Hot-dip galvanized coating is suitable for exterior and treated wood applications
- Precise threading provides smooth engagement with nuts to provide maximum holding power, ensuring components remain firmly connected under stress
- Manufactured from Grade 8 steel for reliable strength and long‑lasting performance in demanding applications.
- Hex head with integrated washer allows for easy installation and removal with standard wrenches or sockets and improved holding power
Specifications
- Drive Type: Hex
- Subclass: HC
- Country of Origin: China
- Length: 3-1/2"
- Retail Selling Unit Piece Count: 50
- Class: BG
- Drive Size: 1/2" Wrench/Socket
- Tariff Code: 7318.15.8000
- Nominal Size: 5/16 in.-18 x 3-1/2 in.
- Diameter: 5/16"
- Thread Type: Coarse
- Finish: Hot Dipped Galvanized
- Thread Size: 18
- Product Line: GF
- Scale: Standard
- Material: Steel