IMSCREWS 1/2"-13 x 5-1/2" Heavy-Duty 304 Stainless Steel Carriage Bolts (2 PCS)

Substantial Support for Extra-Thick Timber Connections
The IMSCREWS 1/2" x 5-1/2" carriage bolt is engineered for heavy-duty projects requiring deep penetration and reliable structural support. With a robust 1/2-inch diameter and an extended 5.5-inch length, these bolts are well-suited for high-load joints, such as joining triple-layered 2x lumber or reinforcing large-scale deck beams. Built for heavy framing, they offer the stability necessary for long-term use in docks, retaining walls, and industrial garden structures.

High Durability and Safety-Focused Design
Forged from 18-8 (304) stainless steel, these fasteners are highly resistant to corrosion in outdoor environments and are compatible with pressure-treated lumber. The smooth round head offers a clean appearance that reduces snagging hazards, making them an ideal choice for high-traffic areas like benches, play sets, and railings. The integrated square neck prevents rotation, allowing for easy, one-sided installation with a single wrench.

Specifications:
- Thread: 1/2"-13 Coarse; Length: 5-1/2" (Under Head)
- Material: 304 (18-8) Stainless Steel; Full Thread

FAQ:
Q: Drill bit size? A: A 1/2" bit provides a snug, structural fit.
Q: Coastal safe? A: Yes, 304 SS offers high resistance to salt air corrosion.

Pro-Tips:
1. Ensure the pilot hole is perfectly perpendicular for 5.5" bolts to avoid alignment issues across multiple timber layers.
2. Pair with a heavy-duty flat washer on the nut side to distribute structural load and protect wood fibers.

Key Features

• MARINE GRADE 304 STAINLESS STEEL Crafted from high-quality 18-8 (304) stainless steel, these bolts offer superior rust and corrosion protection. Ideal for outdoor structures, marine environments, and heavy-duty garden projects.
• EXTRA LONG FULL THREAD DESIGN The 5.5-inch length combined with a full thread design offers maximum versatility. It allows for secure fastening across various material thicknesses, ensuring the nut can be tightened even on slightly thinner timber stacks.
• HEAVY-DUTY 1/2 DIAMETER With a robust 1/2-inch large diameter, these bolts provide massive shear strength and loading capacity. The precision square neck bites into wood to prevent spinning, allowing for easy one-sided installation.
• Well-suited for LARGE TIMBER PROJECTS Specifically engineered for securing heavy beams, deck posts, gazebos, and playground equipment where long-reach fastening and lasting reliability are essential.
• NOTE ON ACCESSORIES This package includes 2 pieces of 1/2-13 x 5-1/2 carriage bolts only. Nuts and washers are NOT included. We recommend using manual tools for installation to prevent thread galling.

Specifications

• ASIN: B0F2F42BZ1
• Internal SKU: IMS0913
• Size: 1/2"-13 x 5-1/2"
• Material: Stainless Steel
• Finish: Stainless Steel
• Head Style: Round
• Package Quantity: 2