IMSCREWS 5/16 x 1 Hex Head Lag Screws, 304 Stainless Steel, Fully Threaded Structural Wood Bolts for Heavy Hardware & Hinges, 5 pcs

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

Massive Strength in a Compact Profile
When standard wood screws lack the shear resistance for heavy hardware, these 5/16 diameter bolts deliver. Perfect for mounting heavy-duty casters, steel brackets, or rail supports to lumber where depth is limited (like 1.5 thick 2x4s) without piercing the back side.

Fully Threaded for Maximum Bite
Image of fully threaded vs partially threaded lag screw grip comparison In a short 1-inch fastener, every thread counts. Our fully threaded design provides constant engagement from tip to head. This maximizes surface area contact and pull-out resistance in shallow depths where partially threaded screws would lack sufficient grip.

304 Stainless Exterior Defense
Forged from premium 18-8 (304) Stainless Steel. compatible with ACQ pressure-treated lumber. Resists rust in humid environments and prevents unsightly rust streaks on high-value cedar or redwood projects.

FAQ
• Tools: Fits standard 1/2 hex socket or wrench.
• Pre-drilling: Use 3/16 bit for softwoods or 7/32 for hardwoods to prevent splitting.
• Why 5/16 diameter? Provides a massive upgrade in lateral shear strength over thinner 1/4 screws.
• Marine use? Highly resistant to corrosion in freshwater and humid coastal zones.

Specs:
- Size: 5/16 x 1
- Thread: Fully Threaded (Max Grip)
- Material: 304 Stainless Steel (18-8)
- Drive: 1/2 Hex Head
- Qty: 5 pcs"

Key Features

• HIGH-TORQUE ANCHORING The 5/16-inch diameter provides superior shear strength compared to standard fasteners. Ideal for mounting heavy gate hinges, latches, and industrial brackets.
• MAXIMIZED SHALLOW GRIP Featuring a fully threaded profile to optimize engagement in shallow 1-inch applications. Achieves consistent holding power without over-penetrating the wood.
• 304 STAINLESS STABILITY Forged from premium 304 (18-8) stainless steel to inhibit oxidation. Compatible with ACQ pressure-treated lumber for high-moisture exterior projects.
• HEAVY-DUTY HEX HEAD Built for power tool applications. Use a 1/2 socket to ensure stable torque transfer and prevent drive stripping during structural installations.
• STRUCTURAL GUIDELINE To prevent timber splitting with this robust 5/16 diameter, pre-drilling a pilot hole (7/32 for softwoods, 1/4 for hardwoods) is required before driving.

Specifications

• ASIN: B0F21BFVC6
• Internal SKU: IMS0627
• Size: 5/16" x 1"
• Material: Stainless Steel
• Finish: Stainless Steel
• Head Style: Hex
• Package Quantity: 5