Bulk 3/8"-16 Grade 8 Hex Cap Screws (Zinc Yellow CR+6 Bake, UNC)

Rugged Fasteners for Industrial & Automotive Applications

Upgrade your project’s reliability and strength with our 3/8"-16 Grade 8 Hex Cap Screws, complete with a zinc-yellow CR+6 bake for enhanced corrosion resistance. Boasting coarse-thread (UNC) design, these screws excel in high-load, high-vibration settings, making them a dependable solution for machinery, construction, and more.

Note – PT = Partial Thread

Key Features

• Diameter: 3/8 inch
• Thread Size: 3/8"-16 – UNC (Coarse) Thread
• Length Options: Offered in multiple lengths to suit diverse project needs
• Thread Length: May be fully or partially threaded depending on total screw length
• Wrench Size (Across Flats): 9/16 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: 3/8"-16 Nuts & Washers Available Here

Bulk Ordering Advantages

Buying these Grade 8 hex cap screws in bulk provides cost-effective pricing per piece while ensuring you maintain a consistent supply of high-quality fasteners. This is especially beneficial for industrial manufacturers, contractors, and automotive facilities that rely on a dependable hardware inventory for large-scale or continuous operations.

Material Properties

• High-Strength Alloy Steel: Handles elevated loads and torque demands.
• Corrosion Protection: Zinc-yellow CR+6 plating defends against rust and environmental wear.
• Coarse Thread Efficiency: UNC threads ensure a secure grip in heavy-duty applications.

Ideal Applications

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

Why Monster Bolts?

Since 2012, Monster Bolts has been the go-to source for professionals seeking industrial-grade fasteners. We distinguish ourselves through:

• Reliable Quality: Our screws adhere to ASTM standards for consistent performance.
• Competitive Bulk Pricing: Save on large orders without compromising on quality.
• Ample Inventory & Quick Shipping: Keep your projects on schedule with our prompt fulfillment.
• Expert Assistance: Our team is here to help with technical questions and product selection.

Installation Tips

• Use a correctly sized wrench or impact socket to avoid head or thread damage.
• Clean and lubricate threads before assembly for accurate torque and a secure hold.
• Pair with Grade 8 nuts and washers for maximum joint integrity and load distribution.

Note: Nuts and washers are sold separately.

Secure Your Bulk Supply Today

Get the dependable performance you need with 3/8"-16 Grade 8 Hex Cap Screws from Monster Bolts. Order in bulk to reduce your costs and ensure you have the high-quality fasteners essential to your industrial, construction, or automotive projects.

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

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

✔️ Conforms to ASTM B18.2.1 standards for proven reliability