IMSCREWS 5/16"-18 x 2" Heavy-Duty 304 Stainless Steel Carriage Bolts (20 PCS)

Substantial Strength for Decking and Structural Outdoor Projects
The IMSCREWS 5/16" x 2" carriage bolt is engineered for structural projects requiring significant shear resistance and a professional finish. With a robust 5/16-inch diameter and a standard 2-inch length, these bolts are the ideal choice for securing deck railings, fencing main-posts, and heavy-duty outdoor furniture. The full thread design ensures maximum versatility, providing a snug and secure connection across different material combinations. Built for durability, they offer the stability required for long-term use in demanding residential and DIY applications.

High Durability and Safety-Focused Design
Forged from premium 18-8 (304) stainless steel, these fasteners are highly resistant to rust and corrosion in coastal or humid environments. The smooth round head offers a clean appearance that reduces snagging hazards, making them a safe choice for playground equipment, park benches, and home decks. The integrated square neck prevents the bolt from spinning during installation, allowing for easy, one-sided fastening with a single wrench from the nut side.

Specifications:
- Thread Size: 5/16"-18 Coarse (UNC); Length: 2" (Measured from Under Head)
- Material: 304 (18-8) Stainless Steel; Full Thread

Pro-Tips:
1. Use a 5/16" drill bit to ensure a snug, structural fit for the square neck.
2. Pair with stainless steel flat washers and hex nuts on the nut side to distribute structural load and protect wood fibers.

Key Features

• Reinforced 5/16 Diameter: The robust 5/16-inch shank offers significantly higher shear strength and load-bearing capacity than standard 1/4 bolts, ideal for structural wood joints.
• The 2-Inch Standard: Designed forly sized for joining two pieces of 2x lumber (1.5 total thickness) with precision, leaving ample room for a flat washer and hex nut.
• Marine-Grade 304 Stainless: Forged from premium 18-8 (304) stainless steel, ensuring maximum rust protection in coastal air, humid gardens, and corrosive pressure-treated wood.
• Safety-First Smooth Head: The low-profile, domed round head eliminates sharp protrusions, providing a snag-free finish that is safe for public walkways, playgrounds, and residential decks.
• Self-Locking Square Neck: The precision square shoulder bites deep into the wood, locking the bolt firmly in place for easy, one-sided installation from the nut side alone.

Specifications

• ASIN: B0F2F7L78W
• Internal SKU: IMS0797
• Size: 5/16"-18 x 2"
• Material: Stainless Steel
• Finish: Stainless Steel
• Head Style: Round
• Package Quantity: 20