IMSCREWS 5/16" x 3" Heavy-Duty Hex Head Lag Screws - 304 Stainless Steel (5 PCS)

Reliable Structural Anchoring
The 5/16" diameter provides a balance of strength and versatility for medium-duty wood construction. At 3 inches in length, these fasteners are suitable for securing deck railings, mounting structural brackets, and connecting 2x lumber to support posts where dependable stability is required.

304 Stainless Corrosion Protection
Manufactured from 18-8 (304) stainless steel, providing effective resistance against rust in outdoor or humid environments. Compatible with ACQ pressure-treated lumber, helping to maintain structural integrity and prevent rust staining on premium wood surfaces like cedar and redwood.

Partial Thread Clamping Design
The partially threaded shank allows the bolt to pull the outer board tightly against the support structure. This design facilitates a firm joint by ensuring the threads only engage the base material, helping to eliminate gaps between the connected timber surfaces.

FAQ
¡ñ Installation Tool: Use with a standard 1/2" hex socket or wrench.
¡ñ Pre-drilling Guide: To prevent timber splitting and ensure a secure fit, pre-drilling a pilot hole is required. Use a 3/16" bit for softwoods or a 7/32" bit for hardwoods.
¡ñ Installation Tip: For smoother installation in dense wood, applying a small amount of lubricant to the threads is recommended. Use low-speed settings to avoid thread galling during high-torque application.

Specs:
- Size: 5/16" x 3"
- Thread: Partially Threaded
- Material: 304 Stainless Steel (18-8)
- Drive: 1/2" Hex Head
- Qty: 5 PCS

Key Features

• PREMIUM 304 STAINLESS STEEL DURABILITY - Forged from high-grade 18-8 (304) stainless steel, these 3-inch lag screws provide essential rust protection for outdoor structures and offer superior longevity compared to zinc-coated fasteners.
• PARTIAL THREAD FOR MAXIMUM CLAMPING - The partially threaded shank is specifically designed to pull two pieces of wood tightly together without gaps, ensuring a rock-solid structural connection for heavy-duty timber framing.
• EXTERNAL HEX DRIVE FOR HIGH TORQUE - Features a robust 1/2 hex head that accommodates high torque installation via a socket or wrench. This design prevents stripping and ensures a deep, secure drive into thick wooden studs.
• IDEAL FOR HEAVY MOUNTING PROJECTS - At 3 inches in length, these bolts are perfect for securing TV wall mounts to studs, installing deck railings, or reinforcing heavy furniture and garden structures.
• STRUCTURAL INSTALLATION ADVICE - To prevent snapping in dense wood, a 3/16 or 7/32 pilot hole is required. Pre-drilling ensures the 3-inch shank drives straight and maintains the integrity of the lumber.

Specifications

• ASIN: B0F21BW43F
• Internal SKU: IMS0642
• Size: 5/16" x 3"
• Material: Stainless Steel
• Finish: Stainless Steel
• Head Style: Hex
• Package Quantity: 5