IMSCREWS 5/16"-18 x 1-1/2" Heavy-Duty 304 Stainless Steel Carriage Bolts (5 PCS)

Substantial Strength for Outdoor Decking and Play Sets
The IMSCREWS 5/16" x 1-1/2" carriage bolt is engineered for structural outdoor projects requiring superior shear resistance and a professional finish. With a robust 5/16-inch diameter and a practical 1.5-inch length, these bolts are the ideal choice for securing deck railings, fencing panels, and garden play equipment. The full thread design ensures maximum versatility, providing a snug and secure connection across various material combinations. Built for durability, they offer the stability required for both residential and light commercial outdoor construction.

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, low-profile appearance that reduces snagging hazards, making them a safe choice for children's playground sets and high-traffic deck areas. 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: 1-1/2" (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 load and protect wood fibers.

Key Features

• High-Load 5/16 Shank: With a robust 5/16-inch diameter, these bolts offer significantly higher shear strength than 1/4 versions, making them ideal for load-bearing joints in decks and swings.
• Versatile 1.5-inch Length: The Designed for size for joining two standard 3/4 boards or fastening metal brackets to 2x4 timber without excessive protruding threads.
• Premium 304 Stainless Steel: Engineered from high-grade 18-8 (304) stainless steel for maximum rust resistance in coastal, humid, or harsh outdoor environments.
• Safety-First Round Head: The smooth, low-profile domed head prevents snags on clothing or skin, providing a safe, clean finish for playground equipment and benches.
• Anti-Spin Square Neck: The precision square shoulder locks firmly into wood fibers during installation, allowing for easy, one-sided tightening with a single wrench.

Specifications

• ASIN: B0F2F6R27W
• Internal SKU: IMS0789
• Size: 5/16"-18 x 1-1/2"
• Material: Stainless Steel
• Finish: Stainless Steel
• Head Style: Round
• Package Quantity: 5