5/16"-18 x 1-3/4" Zinc Plated Grade 5 Steel Coarse Thread Hex Cap Screws

These 5/16-18 x 1-3/4 Grade 5 Coarse Hex Cap Screws are manufactured from durable Grade 5 steel, delivering reliable strength and long-lasting performance in demanding applications. Featuring a zinc finish, they offer moderate corrosion resistance, making them suitable for various environments. The hex head design ensures easy installation and removal using standard wrenches or sockets, while the head stamping allows for quick grade identification even after installation. Ideal for industrial, automotive, and construction settings, these bolts provide precise threading for smooth engagement and maximum holding power, ensuring components stay securely connected under stress. Whether used in machinery assembly or structural projects, these hex cap screws offer dependable performance and ease of use for professionals and DIY enthusiasts alike.

Features

• Hex head design allows for easy installation and removal with standard wrenches or sockets
• Manufactured from Grade 5 steel for reliable strength and long‑lasting performance in demanding applications.
• Head stamping provides easy class/grade identification even after installation
• Zinc finish provides moderate corrosion resistance
• Precise threading provides smooth engagement and maximum holding power, ensuring components remain firmly connected under stress

Specifications

• Nominal Size: 5/16 in.-18 x 1-3/4 in.
• Length: 1-3/4"
• Material: Steel
• Thread Type: Coarse
• Product Line: GF
• Scale: Standard
• Finish: Zinc
• Class: BL
• Tariff Code: 7318.15.8066
• Drive Type: Hex
• Retail Selling Unit Piece Count: 100
• Diameter: 5/16"
• Drive Size: 1/2" Wrench/Socket
• Country of Origin: China
• Subclass: H5
• Thread Size: 18