Bulk 5/16"-18 Carriage Bolt A307 Grade A Zinc Yellow CR+6

Durable, Corrosion-Resistant Fasteners for Secure and Reliable Connections

Enhance your woodworking, construction, and outdoor projects with our premium 5/16"-18 Carriage Bolts, crafted from A307 Grade A steel and coated with Zinc Yellow CR+6. These bolts offer dependable strength and corrosion resistance, making them perfect for a variety of applications where durability and reliability are essential.

Carriage bolts feature a smooth, domed head with a square neck beneath. This design allows the bolt to self-lock into a pre-drilled hole, preventing rotation as you tighten the nut from the opposite side. Ideal for wood-to-wood, wood-to-metal, and even some metal-to-metal applications, carriage bolts are commonly used in carpentry, fencing, decking, furniture assembly, and projects requiring tamper-resistant connections.

Key Benefits of Our Zinc Yellow CR+6 Carriage Bolts

• Enhanced Corrosion Resistance: Zinc Yellow CR+6 coating provides superior protection against rust, pitting, and corrosion in outdoor and industrial environments.
• Self-Locking Square Neck: The square neck design ensures the bolt remains stationary as the nut is tightened, providing a secure and stable connection.
• Flush, Clean Appearance: The domed head sits flush with the surface, reducing snagging and offering a professional, polished look.
• Easy Installation: Simply tap the bolt into place and tighten the nut from the opposite side—no twisting of the bolt head required.
• Tamper-Resistant: The smooth head design allows removal only from the nut side, enhancing security and preventing unauthorized adjustments.

Why Choose Our Bulk Carriage Bolts?

• Bulk Discounts: Save significantly with volume pricing, ideal for contractors, industrial professionals, and large-scale projects.
• Wholesale Availability: Perfect for B2B customers needing substantial quantities for ongoing projects.
• High-Quality Material: Made from robust A307 Grade A steel and coated with Zinc Yellow CR+6 for unmatched durability and corrosion resistance.
• Versatile Use: Suitable for woodworking, construction, fencing, decking, furniture assembly, and more.

Product Specifications

• Diameter: 5/16"
• Thread Pitch: 18 TPI (Coarse Thread)
• Threaded Length (THD): 6 inches
• Length: Measured from under the head to the end of the shank
• Head Style: Domed (Round) Head with Square Neck
• Material: A307 Grade A Steel
• Coating: Zinc Yellow CR+6 for enhanced corrosion resistance
• Standards Compliance: Conforms to standard carriage bolt dimensions (ASME B18.5 or equivalent)

Ideal Applications

• Woodworking Projects: Perfect for cabinetry, furniture assembly, and wooden walkways.
• Construction: Ideal for fencing, decking, and structural wood connections.
• Outdoor Installations: Suitable for playground equipment, garden structures, and other exterior projects.
• General Assembly: Great for DIY and professional builds needing dependable, tamper-resistant hardware.
• Industrial Applications: Suitable for environments exposed to moisture and corrosive agents.

Complementary Products

• Matching Nuts: 5/16"-18 A307 Grade A Zinc Yellow Hex Nuts - Available here
• Matching Washers: 5/16"-18 A307 Grade A Zinc Yellow Flat Washers - Available here

Buy in Bulk and Build with Confidence

Trust our 5/16"-18 Carriage Bolts to provide secure, long-lasting connections in demanding environments. With bulk and wholesale pricing, Monster Bolts delivers top-quality fasteners to meet your project needs, backed by exceptional customer service.

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