Substantial Strength for Heavy Structural and Marine Projects The IMSCREWS 3/8" x 2-3/4" carriage bolt is engineered for structural projects requiring significant load-bearing capacity and professional durability. With a robust 3/8-inch diameter and a precise 2.75-inch length, these bolts are the ideal choice for securing industrial brackets, dock hardware, and heavy timber-to-metal connections. The length is perfectly suited for passing through 1.5-inch actual thickness lumber while leaving sufficient thread for heavy-duty washers and nuts to ensure a snug, permanent connection. Built for longevity, they offer the structural stability required for outdoor pergolas, heavy fencing, and commercial-grade timber framing.
Superior Durability and Safety-Focused Design Forged from premium 18-8 (304) stainless steel, these fasteners offer superior resistance to rust and corrosion in coastal or humid environments. The smooth round head creates a clean, tamper-resistant look that reduces snagging hazards, making them a safe choice for high-traffic areas like boardwalks, playground sets, and residential decks. The integrated square neck locks the bolt into place during installation, preventing spinning and allowing for easy, one-sided tightening from the nut side with a single wrench.
Pro-Tips: 1. Use a 3/8" drill bit to ensure a snug, structural fit for the square neck. 2. Pair with 304 SS flat washers and hex nuts to distribute heavy structural loads and protect wood fibers.
Key Features
Reinforced 3/8 Strength: Heavy-duty 3/8-inch diameter for maximum shear resistance in structural timber joints.
Precision 2.75 Length: Ideal for securing thick metal brackets to 2x lumber or through-bolting 4x posts with countersinking.
