"IMSCREWS 3/8 x 3 Heavy-Duty Lag Screws - 304 Stainless Steel (5 pcs)

Structural Titan for Heavy Timber Joints
When 1/4 or 9/32 fasteners aren't enough, these 3/8 diameter bolts provide the industrial strength needed for critical connections. Perfect for securing deck ledger boards, heavy gate hinges, or structural brackets to 4x4 posts. The 2.5-inch length is optimized for joining 2x dimensional lumber with maximum stability.

Vise-Like Clamping Power
Our partially threaded design features a smooth upper shank. This allows the bolt to pull the outer timber tightly against the support beam without the threads biting prematurely in the top board. This clamping effect ensures a gap-free, rock-solid joint that won't loosen under stress.

304 Stainless Exterior Defense
Forged from premium 18-8 (304) Stainless Steel for ultimate weather resistance. compatible with ACQ pressure-treated lumber, preventing structural decay and unsightly rust streaks on cedar, redwood, or deck framing.

FAQ
¡ñ Tools: Fits a standard 9/16 hex socket or wrench.
¡ñ Pre-drilling: Mandatory for this diameter. Use 1/4 bit for softwoods or 9/32 bit for hardwoods.
¡ñ Why 3 length? Ideal for passing through 2.5 timber with a strong 1 deep-core thread anchor in the base post.
¡ñ Resilience: Rated for marine, coastal, and high-humidity environments.

Specifications:
- Size: 3/8 x 3
- Thread: Partially Threaded (Max Clamping)
- Material: 304 Stainless Steel (18-8)
- Drive: 9/16 Hex Head
- Qty: 5 pcs"

Key Features

• ULTIMATE CLAMPING FORCE The partially threaded design ensures the smooth shank stays in the primary board while threads grip the support member, pulling joints together with massive force.
• INDUSTRIAL SHEAR STRENGTH Featuring a robust 3/8-inch diameter, these bolts provide elite lateral load capacity for 4x4 posts, heavy beams, and structural framing.
• CORROSION DEFENSE 304 Forged from premium 304 (18-8) stainless steel to prevent rust-bleeding in outdoor timber. Chemically compatible with ACQ pressure-treated lumber.
• HIGH-TORQUE DRIVE The oversized hex head is built for heavy-duty 9/16 power sockets. Designed to handle the extreme torque required for driving 3-inch bolts into dense timber.
• MANDATORY PRE-DRILLING To ensure structural integrity and prevent timber splitting, pre-drilling a pilot hole (1/4 for softwoods, 9/32 for hardwoods) is mandatory for this 3/8 bolt.

Specifications

• ASIN: B0F216WRZX
• Internal SKU: IMS0673
• Size: 3/8" x 3"
• Material: Stainless Steel
• Finish: Stainless Steel
• Head Style: Hex
• Package Quantity: 5