"IMSCREWS 1/2 x 2-1/2 Heavy-Duty Lag Screws - 304 Stainless Steel (5 pcs)

Professional Grade Structural Strength
The 1/2 diameter is the heavy-hitter of wood fasteners, providing the highest level of shear resistance for safety-critical joints. These 2.5-inch bolts are the industrial choice for anchoring standard 2x lumber (1.5 thick) into structural 4x4 or 6x6 posts, creating a foundation that can handle significant weight and lateral force.

Vise-Like Clamping Power
Our partially threaded shank features a smooth upper section that allows the bolt to pull the outer timber tightly against the support structure. By eliminating thread-jacking or bridging, this design ensures the two wood surfaces are clamped together with maximum tension for a rock-solid, gap-free connection.

304 Stainless Weather Protection
Forged from premium 18-8 (304) stainless steel for elite rust protection in outdoor and humid environments. compatible with ACQ pressure-treated lumber. These screws are designed to prevent structural failure due to corrosion and eliminate unsightly rust streaks on cedar, redwood, or premium deck framing.

FAQ
¡ñ Tools: Fits a standard 3/4 hex socket or wrench.
¡ñ Pre-drilling: Mandatory for 1/2 bolts. Use a 5/16 bit for softwoods or 3/8 bit for hardwoods to prevent timber splitting while ensuring maximum thread bite.
¡ñ Why 2-1/2 length? Perfect for passing through 1.5 thick timber with a deep 1 thread anchor in the base post for maximum stability.

Specs:
- Size: 1/2 x 2-1/2
- Thread: Partially Threaded (Max Clamping)
- Material: 304 Stainless Steel
- Drive: 3/4 Hex Head
- Qty: 5 pcs"

Key Features

• ULTIMATE SHEAR RESISTANCE The massive 1/2 industrial diameter offers superior lateral strength, designed for high-stress nodes where safety is non-negotiable.
• PRO-GRADE CLAMPING FORCE Engineered partial thread allows the smooth shank to bypass the outer member, pulling components together for a gap-free, rock-solid joint.
• 304 EXTERIOR SHIELD Forged from premium 304 (18-8) stainless steel to resist rust and corrosion in marine environments or ACQ pressure-treated lumber.
• MAX-TORQUE INTERFACE Robust hex head fits standard 3/4 socket drives, allowing for maximum torque transfer in dense hardwoods without slipping.
• TECHNICAL SPECIFICATION To ensure structural safety and prevent splitting, pre-drilling a pilot hole (5/16 for softwoods, 11/32 for hardwoods) is mandatory.

Specifications

• ASIN: B0F21B93NB
• Internal SKU: IMS0697
• Size: 1/2" x 2-1/2"
• Material: Stainless Steel
• Finish: Stainless Steel
• Head Style: Hex
• Package Quantity: 5