Bulk 1/2"-13 Grade 8 Hex Cap Screws (Zinc Yellow CR+6 Bake, UNC)

Rugged Fasteners for Industrial & Construction Applications

Reinforce your high-load assemblies with our 1/2"-13 Grade 8 Hex Cap Screws, complete with a zinc-yellow CR+6 bake for exceptional corrosion resistance. Boasting coarse-thread (UNC) design, these screws are engineered to deliver reliable clamping power, making them ideal for heavy machinery, structural projects, and more.

Note – PT = Partial Thread

Key Features

• Diameter: 1/2 inch
• Thread Size: 1/2"-13 – UNC (Coarse) Thread
• Length Options: Multiple lengths to accommodate various project requirements
• Thread Length: May be fully or partially threaded depending on overall screw length
• Wrench Size (Across Flats): 3/4 inch (standard hex head)
• Material & Finish: Grade 8 alloy steel with zinc-yellow CR+6 bake
• Type: Hex Cap Screw
• System of Measurement: Inch (Imperial / US)
• Specifications: Conforms to ASTM B18.2.1
• Matching Nuts & Washers: 1/2"-13 Nuts & Washers Available Here

Bulk Ordering Advantages

By purchasing these Grade 8 hex cap screws in bulk, you effectively lower your per-piece cost and ensure you have a dependable inventory of high-quality fasteners. This is especially beneficial for industrial facilities, OEMs, and contractors who need to maintain consistent production and quick turnaround times.

Material Properties

• Grade 8 Strength: Built to endure heavy loads and high torque applications.
• Corrosion Resistance: Zinc-yellow CR+6 plating provides a durable shield against rust.
• Coarse Thread Efficiency: UNC threads offer a secure grip and easier alignment.

Ideal Applications

• Industrial Machinery & Equipment
• Construction & Structural Projects
• Automotive & Heavy Vehicle Assembly
• Agricultural & Off-Road Machinery
• Maintenance, Repair & Overhaul (MRO)

Why Monster Bolts?

Since 2012, Monster Bolts has been a trusted partner for professionals seeking high-grade fasteners for their projects. We pride ourselves on:

• Reliability: Every item adheres to ASTM standards for consistent performance.
• Cost-Effective Bulk Rates: Save on large orders while upholding quality.
• Extensive Stock & Quick Shipping: Reduce downtime with fast order fulfillment.
• Expert Support: Our knowledgeable staff is on hand to assist with product selection and technical questions.

Installation Tips

• Use the correct wrench or impact socket to prevent damage to the hex head and threads.
• Clean and lubricate threads before assembly to ensure accurate torque settings.
• Combine with Grade 8 nuts and washers for maximum joint integrity and load distribution.

Note: Nuts and washers are sold separately.

Secure Your Bulk Supply

For robust fastening solutions you can trust, choose 1/2"-13 Grade 8 Hex Cap Screws from Monster Bolts. Order in bulk to reduce overall costs and enjoy fast, reliable service—perfect for tackling your most demanding industrial and construction projects.

✔️ Preferred by professionals in automotive, industrial, and construction fields

✔️ Zinc-yellow CR+6 plating for superior corrosion resistance

✔️ Conforms to ASTM B18.2.1 standards for proven reliability