IMSCREWS 5/16"-18 x 3/4" Heavy-Duty 304 Stainless Steel Carriage Bolts (25 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 wood panels or reinforcing furniture hardware. Built for durability, they offer the stability necessary for long-term use in demanding residential and industrial 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 public seating. 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

• Reinforced 5/16 Strength: The thicker 5/16-inch shank provides superior shear resistance and load-bearing capacity compared to standard 1/4 bolts, ideal for heavy-duty applications.
• Compact Flush Fastening: The 3/4 length is precision-engineered for attaching metal plates, heavy hinges, or base brackets to wood without the bolt tail protruding through the surface.
• Marine-Grade 304 Stainless: Forged from premium 18-8 (304) stainless steel, ensuring maximum rust protection in coastal environments and corrosive pressure-treated lumber (ACQ).
• Tamper-Resistant Safety Head: The smooth round head features no drive socket, providing a clean professional finish while preventing unauthorized removal¡ªessential for gate security and public furniture.
• Self-Locking Square Neck: The precision square shoulder bites firmly into pre-drilled holes, locking the bolt so you can easily tighten the nut with one wrench from the back.

Specifications

• ASIN: B0F2F6PHPY
• Internal SKU: IMS0778
• Size: 5/16"-18 x 3/4"
• Material: Stainless Steel
• Finish: Stainless Steel
• Head Style: Round
• Package Quantity: 25