IMSCREWS 5/16 x 2-1/2 Hex Head Lag Screws, 304 Stainless Steel, Partially Threaded Heavy Duty Wood Bolts for Post Framing, 20 pcs

"IMSCREWS 5/16 x 2-1/2 Heavy-Duty Lag Screws - 304 Stainless Steel (20 pcs)

Heavy-Duty Structural Pro-Pack
The 5/16 diameter offers industrial-grade shear strength for critical load-bearing joints. This 20-piece contractor pack is the professional choice for larger projects like joining standard 2x lumber (1.5 thick) to 4x posts, providing deep penetration and a rock-solid connection for deck railings, gate frames, and pergolas.

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 beam. This clamping effect ensures a gap-free joint, eliminating the bridging effect where boards remain loose—a common issue with long full-thread screws.

304 Stainless Weather Protection
Forged from premium 18-8 (304) stainless steel for superior rust resistance in outdoor or humid environments. compatible with ACQ pressure-treated lumber. Prevents unsightly rust streaks on high-value cedar, redwood, or premium deck framing.

FAQ
• Tools: Fits a standard 1/2 hex socket or wrench.
• Pre-drilling: Recommended. Use a 3/16 bit for softwoods or 7/32 bit for hardwoods to prevent timber splitting.
• Why 20 pcs? Best value for consistent, multi-point structural installations such as full deck railing systems.

Specs:
- Size: 5/16 x 2-1/2
- Thread: Partially Threaded (Max Clamping)
- Material: 304 Stainless Steel
- Drive: 1/2 Hex Head
- Qty: 20 pcs"

Key Features

• ENGINEERED CLAMPING FORCE Features a partial thread that allows the smooth shank to bypass the outer board, pulling lumber together for a gap-free, rock-solid structural joint.
• IDEAL FOR 2x LUMBER The 2.5-inch length is perfectly sized to pass through standard 1.5 thick timber (2x4s/2x6s) and anchor deep into structural posts with elite holding power.
• INDUSTRIAL 304 PROTECTION Forged from premium 304 (18-8) stainless steel to resist oxidation and staining in cedar, redwood, or ACQ pressure-treated lumber.
• HIGH-TORQUE DRIVE Precision hex head ensures a secure 1/2 socket fit, delivering steady torque for controlled seating in dense hardwoods without the stripping of Phillips screws.
• TECHNICAL SPECIFICATION To prevent splitting and protect the 5/16 shaft, pre-drilling a pilot hole (7/32 for softwoods, 1/4 for hardwoods) is required for structural integrity.

Specifications

• ASIN: B0F219QFKZ
• Internal SKU: IMS0641
• Size: 5/16" x 2-1/2"
• Material: Stainless Steel
• Finish: Stainless Steel
• Head Style: Hex
• Package Quantity: 20