IMSCREWS 1/2" x 6" Heavy-Duty Lag Screws - 304 Stainless Steel

Extreme Reach for Massive Structural Timber
At a full 6 inches in length, these 1/2" diameter lag bolts are engineered for the most demanding structural connections. They provide the maximum shear resistance and anchoring depth required for large-scale timber framing, securing heavy 6x6 posts to structural headers, or building robust retaining walls that must withstand intense lateral pressure.

Vise-Like Clamping Power
Our partially threaded shank features a smooth upper section that allows the bolt to pull the thick outer timber tightly against the support structure. This eliminates "thread-jacking," ensuring a high-tension, gap-free joint that fully threaded screws simply cannot achieve at this length.

304 Stainless Exterior Defense
Forged from premium 18-8 (304) stainless steel for elite rust protection in outdoor, humid, or coastal environments. 100% compatible with ACQ pressure-treated lumber. These screws prevent structural failure due to corrosion and eliminate unsightly rust streaks on high-value cedar, redwood, or premium structural beams.

FAQ
¡ñ Tools: Fits a standard 3/4" hex socket or wrench.
¡ñ Pre-drilling: Mandatory for this extreme length. Use a 5/16" bit for softwoods or 3/8" bit for hardwoods to prevent timber splitting while ensuring maximum thread bite.
¡ñ Why 6" length? Optimized for passing through 3.5" (4x) lumber with a massive 2.5" thread anchor in the base post for ultimate pull-out resistance.

Specs:
- Size: 1/2" x 6"
- Thread: Partially Threaded (Max Clamping)
- Material: 304 Stainless Steel
- Drive: 3/4" Hex Head

Key Features

• [PRECISION REPLACEMENT & SAMPLING] Ideal for critical structural repairs requiring a single 6-inch bolt, or for professional contractors wishing to verify our 304 stainless steel quality before a bulk project order. This 1-pack ensures an exact solution with zero waste.
• [STRUCTURAL DRAW-DOWN POWER] Engineered with a precise 3.703" thread and 2.3" smooth upper shank. This ratio allows the shank to clear outer lumber, enabling the deep threads to bite into the support post for a gap-free, structural bond.
• [LIFETIME 304 PROTECTION] Forged from 304 (18-8) stainless steel to withstand moisture in deep 6" joints. Safe for ACQ pressure-treated lumber, preventing rust-streaking on your timber projects.
• [FOUNDATION VERSATILITY] Suitable for timber framing or anchoring sill plates to concrete when paired with a 1/2" lag expansion shield (not included). Provides a reliable anchoring point for heavy-duty hardware.
• [INSTALLATION SPECIFICATIONS] Drive with a 3/4" hex socket. IMPORTANT: To prevent timber splitting and head snapping, pre-drilling a pilot hole (11/32" for softwoods, 3/8" for hardwoods) to the full depth is required.

Specifications

• ASIN: B0F21DNF6K
• Internal SKU: IMS0711
• Size: 1/2" x 6"
• Material: Stainless Steel
• Finish: Stainless Steel
• Head Style: Hex
• Package Quantity: 1