Midwest Fasteners Grade 5 Zinc-Plated Steel Coarse Thread Hex Bolt

Midwest Fasteners Grade 5 Zinc-Plated Steel Coarse Thread Hex Bolt

The Midwest Fasteners Grade 5 hex cap screw family covers steel, zinc-plated hex bolts in coarse thread, built for structural, equipment and general mechanical connections where a basic hex bolt won't cut it. This listing spans diameters and lengths from 1/4"-20 up through 5/8"-11, with common sizes including 1/4"-20, 5/16"-18, 3/8"-16, 1/2"-13 and 5/8"-11, each offered in multiple lengths ranging from 1/2" up to 6". Every option in the family shares the same Grade 5 steel construction, zinc-plated finish, coarse thread pattern and hex drive head, so you can match the diameter and length you need without changing material or grade.

Key Features

• Size Range: Available in 1/4"-20, 5/16"-18, 3/8"-16, 1/2"-13 and 5/8"-11 thread sizes, with lengths spanning 1/2" through 6" depending on the selected option, for standard tapped holes and nuts.
• Material & Finish: Steel construction with a zinc-plated coating for improved corrosion resistance over bare steel in indoor and mildly exposed environments.
• Drive Type: Hex head drive accepts standard wrenches and sockets for fast, high-torque installation and removal.
• Grade: Grade 5 steel offers a solid strength upgrade over Grade 2 hardware, suitable for general structural and equipment fastening.
• Thread: Coarse thread profile for quick engagement and resistance to cross-threading on the jobsite.
• Head Style: Hex cap screw head provides a flat bearing surface and full wrench engagement for high-torque applications.

Technical Specifications

• Drive Type: Hex
• Product Diameter: 5/8 inches
• Connection Type: Hex
• Product Size: 1/4" - 5/8"

Typical Applications

• General machinery and equipment assembly requiring a Grade 5 hex cap screw.
• Structural framing and bracket connections in fabrication and repair work.
• Maintenance and MRO replacement fastening where a coarse thread bolt of a specific diameter and length is specified.
• Jobsite and shop assembly tasks needing a zinc-plated steel hex bolt for moderate corrosion resistance.

Why Midwest Fasteners?

Midwest Fasteners supplies steel hex cap screws with consistent sizing, grade and finish so contractors, fabricators and maintenance techs can specify with confidence. This Grade 5 zinc-plated hex bolt family delivers dependable strength and a corrosion-resistant finish across a wide range of diameters and lengths, from 1/4"-20 up to 5/8"-11 and lengths from 1/2" to 6", for everyday structural and equipment fastening needs.