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IMSCREWS 5/16 x 4-1/2 Hex Head Lag Screws, 304 Stainless Steel, Partially Threaded Extra-Long Structural Framing Bolts, 10 pcs
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"IMSCREWS 5/16 x 4-1/2 Heavy-Duty Lag Screws - 304 Stainless Steel (10 pcs)
Extreme Structural Penetration
Our 4.5-inch lag bolts are designed for extra-thick timber assemblies and deep-core anchoring. The robust 5/16 diameter provides professional-grade shear resistance, making these the ideal choice for securing heavy beams, landscaping ties, or large structural brackets to 6x6 posts.
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. This creates a gap-free, rock-solid joint, eliminating the bridging effect common in extra-long full-thread screws for a professional-grade finish.
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. Prevents unsightly rust streaks on high-value cedar, redwood, or premium deck framing.
FAQ
¡ñ Tools: Fits a standard 1/2 hex socket or wrench.
¡ñ Pre-drilling: Mandatory for this length. Use a 3/16 bit for softwoods or 7/32 for hardwoods to prevent timber splitting.
¡ñ Why 4-1/2 length? Optimized for passing through 2.5 or 3 timber with a deep 1.5 + thread anchor in the base beam.
Specs:
- Size: 5/16 x 4-1/2
- Thread: Partially Threaded (Max Clamping)
- Material: 304 Stainless Steel
- Drive: 1/2 Hex Head
- Qty: 10 pcs"
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Extreme Structural Penetration
Our 4.5-inch lag bolts are designed for extra-thick timber assemblies and deep-core anchoring. The robust 5/16 diameter provides professional-grade shear resistance, making these the ideal choice for securing heavy beams, landscaping ties, or large structural brackets to 6x6 posts.
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. This creates a gap-free, rock-solid joint, eliminating the bridging effect common in extra-long full-thread screws for a professional-grade finish.
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. Prevents unsightly rust streaks on high-value cedar, redwood, or premium deck framing.
FAQ
¡ñ Tools: Fits a standard 1/2 hex socket or wrench.
¡ñ Pre-drilling: Mandatory for this length. Use a 3/16 bit for softwoods or 7/32 for hardwoods to prevent timber splitting.
¡ñ Why 4-1/2 length? Optimized for passing through 2.5 or 3 timber with a deep 1.5 + thread anchor in the base beam.
Specs:
- Size: 5/16 x 4-1/2
- Thread: Partially Threaded (Max Clamping)
- Material: 304 Stainless Steel
- Drive: 1/2 Hex Head
- Qty: 10 pcs"
Key Features
- ULTIMATE STRUCTURAL CLAMPING] The 4.5 length with partial threading allows the shank to bypass outer layers, pulling thick timbers together for a professional, gap-free joint.
- DEEP ANCHOR STRENGTH Engineered for heavy-load applications, providing elite withdrawal and shear resistance for beams, posts, and framing.
- 304 MARINE-GRADE PROTECTION Forged from premium 304 (18-8) stainless steel to endure humid conditions and prevent rust staining in cedar, redwood, or ACQ lumber.
- STABLE TORQUE INTERFACE Robust hex head fits standard 1/2 socket drives, delivering maximum torque transfer for controlled seating in dense structural timbers.
- TECHNICAL SPECIFICATION To ensure structural safety and prevent splitting, pre-drilling a pilot hole (3/16 for softwoods, 1/4 for hardwoods) is required.
Specifications
- ASIN: B0F21BC3FV
- Internal SKU: IMS0652
- Size: 5/16" x 4-1/2"
- Material: Stainless Steel
- Finish: Stainless Steel
- Head Style: Hex
- Package Quantity: 10
