IMSCREWS 5/16"-18 x 3/4" Heavy-Duty 304 Stainless Steel Carriage Bolts (10 PCS)

Substantial Strength for Compact Structural Connections
The IMSCREWS 5/16" x 3/4" carriage bolt is engineered for structural projects requiring significant shear resistance in a compact, low-profile size. With a robust 5/16-inch diameter and a 0.75-inch length, these bolts are well-suited for joints where stability is critical but clearance is limited, such as mounting heavy-duty metal brackets to thin wood panels or reinforcing structural hardware. Built for durability, they offer the stability necessary 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 an ideal choice for visible furniture joints, playground equipment, and railings. 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 Size: 5/16"-18 Coarse (UNC); Length: 3/4" (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 nuts on the nut side to distribute structural load and protect material surfaces.

Key Features

• High-Torque 5/16 Diameter: The reinforced 5/16-inch shank offers superior shear strength compared to standard 1/4 bolts, making it ideal for high-stress compact joints.
• Compact Low-Profile Fastening: The 3/4 short length is precision-engineered for attaching metal plates, heavy hinges, or brackets to wood without the bolt protruding through the back.
• Marine-Grade 304 Stainless: Forged from premium 18-8 (304) stainless steel, ensuring maximum rust protection in humid outdoor, coastal, or kitchen environments.
• One-Way Security Design: The smooth round head features no drive socket, providing a clean professional finish while preventing unauthorized removal from the exterior.
• Self-Locking Square Shoulder: The precision square neck bites into pre-drilled holes, locking the bolt so you can tighten the nut from the inside with a single wrench.

Specifications

• ASIN: B0F2FGKNYR
• Internal SKU: IMS0777
• Size: 5/16"-18 x 3/4"
• Material: Stainless Steel
• Finish: Stainless Steel
• Head Style: Round
• Package Quantity: 10