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

High-Strength Fasteners for Industrial & Manufacturing Applications

Elevate your large-scale projects with our 1-8 Grade 8 Hex Cap Screws featuring zinc-yellow CR+6 bake. Built to endure intensive torque and extreme loads, these coarse-thread UNC fasteners are ideal for heavy-duty machinery, structural applications, and more.

Note – PT = Partial Thread

Key Features

• Diameter: 1 inch
• Thread Size: 1-8 (8 Threads Per Inch) – UNC (Coarse) Thread
• Length Options: Available in various lengths to meet your specific needs
• Thread Length: May be fully or partially threaded based on overall screw length
• Wrench Size (Across Flats): Approximately 1-1/2 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: 1-8 Nuts & Washers Available Here

Bulk Ordering Benefits

Purchasing these Grade 8 hex cap screws in bulk significantly lowers your per-piece cost and ensures you always have the fasteners you need for demanding jobs. Ideal for large-scale operations, bulk buying keeps overhead in check while guaranteeing a reliable supply of top-quality parts.

Material Properties

• High Tensile Strength: Grade 8 steel delivers superior load-bearing capacity.
• Corrosion Resistance: Zinc-yellow finish with CR+6 bake helps prevent rust.
• Longevity Under Stress: Engineered to withstand vibration, torque, and harsh environments.

Ideal Applications

• Heavy Machinery & Equipment
• Construction & Structural Projects
• Industrial Manufacturing & Assembly
• Agricultural & Off-Road Vehicles
• Any High-Torque, High-Load Requirements

Why Monster Bolts?

Since 2012, Monster Bolts has been the go-to source for industrial-grade fasteners, delivering exceptional quality and value. Our commitment includes:

• Reliability: Adherence to ASTM standards ensures consistent performance.
• Competitive Pricing: Bulk rates keep your project costs down.
• Extensive Inventory & Fast Shipping: We maintain robust stock levels to prevent project delays.
• Expert Support: Our knowledgeable team can assist with technical questions and product recommendations.

Installation Tips

• Select the correct size wrench or impact socket to avoid head or thread damage.
• Clean and lubricate threads before installation for accurate torque readings and a secure hold.
• Use Grade 8 nuts and washers to achieve maximum clamping force and reliability.

Note: Nuts and washers are sold separately.

Secure Your Bulk Supply Today

Don’t compromise on strength or durability. Choose 1-8 Grade 8 Hex Cap Screws from Monster Bolts to handle your toughest applications. Stock up in bulk and enjoy the cost savings, fast shipping, and dedicated customer support that have made us a trusted partner since 2012.

✔️ Trusted by professionals in industrial, construction, and manufacturing sectors

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

✔️ Meets ASTM B18.2.1 standards for proven reliability