"Professional-Grade Structural Fastening with IMSCREWS
When your project demands a balance of heavy-duty strength and long-lasting rust protection, IMSCREWS 3/8-16 x 2-1/4 carriage bolts deliver. Crafted from high-quality 304 (18-8) stainless steel, these fasteners are engineered to withstand humidity, rain, and the elements, ensuring your outdoor deck, gazebo, or playground set remains structurally sound for years to come.

Versatile Full-Thread Engineering
Unlike standard bolts that may have an unthreaded shank, our 2-1/4 bolts are fully threaded. This provides maximum clamping range, making them the Designed for solution for joining 2x4 timbers (actual 1.5 thickness) to various brackets, plates, or additional boards. The 3/8 diameter provides massive shear strength, making it the go-to size for heavy timber framing.

Safe and Secure Installation
The smooth, domed mushroom head offers a clean, professional finish that is child-safe and snag-free—ideal for benches, garden furniture, and play sets. The precision-designed square neck seats firmly into pre-drilled holes, locking the bolt in place so you can tighten the nut from the other side without the bolt spinning.

Specifications & Usage:
- Size: 3/8-16 x 2-1/4 (Full Thread)
- Material: Premium 304 (18-8) Stainless Steel
- Quantity: 10 Bolts per Pack (Nuts and washers sold separately)
- Best for: Outdoor decking, gate hinges, playground sets, and heavy-duty furniture repair.

Pro Installation Tip: For a flush finish, pre-drill a 3/8 hole and use a rubber mallet to seat the square neck into the wood before tightening. Using 304 stainless steel nuts and washers is recommended to ensure matching corrosion resistance across your entire assembly."

Key Features

• HEAVY-DUTY 304 STAINLESS STEEL Made from high-grade 18-8 (304) stainless steel, providing superior rust and corrosion resistance. Well-suited for outdoor projects where lasting structural safety and aesthetic finish are required.
• ADJUSTABLE FULL THREAD DESIGN The 2-1/4 length features a full thread, allowing maximum versatility for various material thicknesses. Ensures a tight, secure fit without the limitations of a smooth shank.
• SMOOTH SAFETY FINISH The domed round head provides a professional, low-profile look with no sharp edges, making it ideal for play sets, benches, and high-traffic areas where safety is a priority.
• SELF-LOCKING INSTALLATION The precision-engineered square neck bits into wood to prevent spinning, enabling easy one-sided tightening with a single wrench.
• NOTE: BOLTS ONLY This package includes 10 pieces of 3/8-16 x 2-1/4 carriage bolts. Nuts and washers are NOT included. Please pair with 3/8-16 stainless steel accessories for a complete set.

Specifications

• ASIN: B0F2F61324
• Internal SKU: IMS0847
• Size: 3/8"-16 x 2-1/4"
• Material: Stainless Steel
• Finish: Stainless Steel
• Head Style: Round
• Package Quantity: 10