Bulk 1/2"-20 Grade 8 Hex Cap Screws (Zinc Yellow CR+6 Bake, UNF)

High-Performance Fasteners for Industrial & Automotive Applications

Bolster your high-torque assemblies with our 1/2"-20 Grade 8 Hex Cap Screws, complete with a zinc-yellow CR+6 bake for exceptional corrosion resistance. Featuring fine-thread (UNF) design, these screws provide superior clamping force, making them an ideal choice for automotive, machinery, and demanding industrial projects.

Note – PT = Partial Thread

Key Features

• Diameter: 1/2 inch
• Thread Size: 1/2"-20 – UNF (Fine) Thread
• Length Options: Multiple lengths to suit 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"-20 Nuts & Washers Available Here

Bulk Ordering Advantages

When you purchase these Grade 8 hex cap screws in bulk, you save on per-piece costs while ensuring a consistent supply of top-tier fasteners. This is particularly beneficial for large-scale manufacturers, automotive repair shops, and industrial facilities requiring significant quantities of reliable hardware.

Material Properties

• Grade 8 Strength: Engineered to handle intense loads and torque demands.
• Corrosion Resistance: Zinc-yellow CR+6 finish defends against rust and environmental wear.
• Fine Thread Precision: UNF threading delivers enhanced clamping force and vibration resistance.

Ideal Applications

• Automotive & Engine Assembly
• Industrial Machinery & Equipment
• Construction & Structural Reinforcement
• Agricultural & Heavy Equipment
• Maintenance, Repair & Overhaul (MRO)

Why Monster Bolts?

Since 2012, Monster Bolts has been a trusted supplier for professionals who demand high-quality, industrial-grade fasteners. We excel in:

• Reliability: Every fastener adheres to ASTM standards for consistent, proven performance.
• Competitive Bulk Pricing: Reduce overall project expenses without sacrificing quality.
• Large Inventory & Fast Shipping: Maintain productivity with ready-to-ship products.
• Expert Support: Our knowledgeable team can assist with product selection and technical inquiries.

Installation Tips

• Use a proper wrench or impact socket to avoid damaging the screw head or threads.
• Clean and lubricate threads prior to installation for accurate torque and a secure hold.
• Combine with Grade 8 nuts and washers to achieve optimal joint integrity and reliability.

Note: Nuts and washers are sold separately.

Secure Your Bulk Supply Today

Don’t compromise on strength or durability. Order 1/2"-20 Grade 8 Hex Cap Screws in bulk and benefit from cost savings, quick shipping, and the expertise that has made Monster Bolts a go-to source for industrial and automotive fasteners.

✔️ Trusted by professionals across automotive, industrial, and construction sectors

✔️ Zinc-yellow CR+6 finish for enhanced corrosion protection

✔️ Meets ASTM B18.2.1 standards for guaranteed reliability