IMSCREWS 3/8"-16 x 5" Heavy-Duty 304 Stainless Steel Carriage Bolts (5 PCS)

Substantial Support for Deep Structural Connections
The IMSCREWS 3/8" x 5" carriage bolt is designed for heavy-duty projects requiring extended reach and stable structural support. With a 5-inch length, these bolts are well-suited for high-load joints, such as through-bolting thick timber beams or reinforcing deck-to-post connections. Built for framing, they offer the stability necessary for long-term use in gazebos, pergolas, 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 railings, play sets, and benches. The integrated square neck prevents the bolt from spinning, allowing for easy, one-sided installation with a single wrench from the nut side.

Specifications:
- Thread: 3/8"-16 Coarse; Length: 5" (Under Head)
- Material: 304 (18-8) Stainless Steel; Full Thread

FAQ:
Q: Drill bit size? A: A 3/8" 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" bolts to avoid alignment issues across multiple timber layers.
2. Pair with a heavy-duty flat washer on the nut side to distribute load and protect wood fibers.

Key Features

• PREMIUM 304 STAINLESS STEEL Crafted from high-quality 18-8 (304) stainless steel, these carriage bolts offer superior rust and corrosion resistance. Ideal for long-term outdoor use, they ensure structural safety without unsightly rust stains on wood.
• ADJUSTABLE FULL THREAD DESIGN The 5-inch length features a full thread design, providing maximum versatility for various material thicknesses. It ensures secure fastening even when connecting thinner boards to thick beams, avoiding bottoming out issues.
• HEAVY DUTY STRUCTURAL GRADE With a 3/8 inch large diameter, our bolts offer massive shear strength and loading capacity. The precision square neck underneath the mushroom head bites into wood to prevent spinning, allowing for easy one-sided installation.
• IDEAL FOR EXTERIOR PROJECTS Engineered for professional structural construction. Well-suited for securing heavy beams in gazebos, deck ledger boards, dock railings, and playground sets where long-reach and lasting reliability are essential.
• NOTE ON QUANTITY & ACCESSORIES Package includes 5 pieces of 3/8-16 x 5 carriage bolts only. Nuts and washers are NOT included. We recommend using manual wrenches and applying lubricant during installation to prevent thread galling.

Specifications

• ASIN: B0F2F6YBFR
• Internal SKU: IMS0868
• Size: 3/8"-16 x 5"
• Material: Stainless Steel
• Finish: Stainless Steel
• Head Style: Round
• Package Quantity: 5