IMSCREWS 1/4 x 3 Heavy-Duty Lag Screws - 304 Stainless Steel (5 pcs)
Deep Reach Structural Anchoring
When projects require deep penetration and unyielding holding power, IMSCREWS 1/4 x 3 Lag Bolts are the professional standard. Ideal for securing 2x4 framing, fence rails, or mounting heavy brackets to structural posts. The 3-inch length ensures a deep-reach anchor into the core of the timber for maximum stability.

The Power of Partial Threading
Designed for structural clamping, our partially threaded shank allows the screw to spin freely in the outer board. This draws the two components together with a vise-like grip, eliminating gaps and ensuring a rock-solid connection. This design is superior to full-thread screws for joining thick lumber without bridging issues.

304 Stainless Exterior Defense
Forged from premium 18-8 (304) Stainless Steel, these screws are built to endure the elements. They are compatible with ACQ pressure-treated lumber, preventing chemical corrosion and ensuring no unsightly rust streaks will ruin your cedar, redwood, or deck framing.

Technical FAQ
¡ñ Tools Required: Fits a standard 7/16 hex socket or wrench.
¡ñ Pre-drilling: Use a 3/32 bit for softwoods or 5/32 bit for hardwoods to prevent splitting at this depth.
¡ñ Why 3 length? Perfect for passing through 1.5 timber with a strong 1.5 thread engagement in the support post.
¡ñ Durability: Engineered for marine, coastal, and high-humidity outdoor environments.

Specifications:
- Size: 1/4 x 3
- Thread: Partially Threaded (Max Clamping)
- Material: 304 Stainless Steel (18-8)
- Drive: 7/16 Hex Head
- Qty: 5 pcs

Key Features

• ELITE CLAMPING POWER The partially threaded design ensures the smooth shank stays in the primary board while threads grip the support post, drawing joints together with extreme force.
• DEEP TIMBER ANCHORING The 3-inch length is optimized for securing 2x lumber to 4x posts or beams, reaching deep into the structural core for maximum load-bearing stability.
• 304 CORROSION STABILITY Forged from 304 (18-8) stainless steel to prevent deep-seated rust in outdoor projects. Chemically compatible with ACQ pressure-treated timber.
• HIGH-TORQUE ENDURANCE Built with a robust hex head to handle the massive torque required for 3-inch drives. Use a 7/16 socket to ensure a secure, slip-free installation in dense framing.
• STRUCTURAL GUIDELINE To ensure thread integrity in heavy load-bearing joints, pre-drilling a pilot hole (3/16 for softwoods, 7/32 for hardwoods) is mandatory before driving.

Specifications

• ASIN: B0F219XYYL
• Internal SKU: IMS0618
• Size: 1/4" x 3"
• Material: Stainless Steel
• Finish: Stainless Steel
• Head Style: Hex
• Package Quantity: 5