The Ultimate Ledgerlok Screw Size Guide

LedgerLOK screws are used to fasten deck ledger boards to the rim joists of a house. They are the first wood screws that can do this with no pre-drilling required. They are available in flat head and hex head designs, with the flat head screws installing flush to the ledger, saving time and money. LedgerLOK Flat Head Deck Ledger screws are offered in a 3-5/8 inch length for single ledger attachment and a 5-inch length for double ledger applications.

LedgerLOK Flat Head Screw is a structural wood screw

The LedgerLOK Flat Head Screw is a structural wood screw that is engineered to securely attach a deck ledger board to the rim joist of a house. Unlike traditional bolts and lag bolts, the LedgerLOK Flat Head Screw requires no pre-drilling, reducing the time, effort, and cost of installation. The screw is designed to be driven flush into the ledger surface, resulting in a clean, finished look.

The LedgerLOK Flat Head Screw features a TORX® ttap® drive system, which provides superior bit engagement and a wobble-free installation experience. The drive system also includes a patented stability button, ensuring stability during installation. The screw's wide, washer head eliminates the need for an additional washer, further streamlining the installation process and reducing costs.

Crafted from epoxy-coated steel, the LedgerLOK Flat Head Screw is guaranteed not to rust or corrode, even in pressure-treated wood. It is ACQ-approved for use in treated lumber but is not recommended for saltwater applications. The screw has been tested and supported by engineering data that conforms to current ICC standards.

The LedgerLOK Flat Head Screw is available in two lengths: 3-5/8 inch for single ledger attachment and 5 inch for double ledger applications. It comes in packs of 50 and 250, providing flexibility for projects of varying scales.

No pre-drilling is required

Traditionally, a hole with two widths needed to be drilled for ledger-to-rim connections. First, a hole for the narrowest part of the screw, and then the front of the hole needed to be bored out to create room for the shank and make it wider, preventing outward pressure that could lead to splits. The LedgerLOK screw, however, can simply be aligned and driven into place with a standard drill until the washer comes firm against the ledger.

The TORX® ttap® Drive System of the LedgerLOK screw provides a wobble-free installation experience and a flush finish. The large hex-head allows for greater bit engagement, reducing cam-out and eliminating the need for a separate washer. The built-in washer head also saves time and money during installation.

The LedgerLOK screw is available in two sizes: #14 x 3 5/8 inches and #14 x 5 inches. It is ACQ-approved, code-compliant, and crafted from heat-treated steel with excellent corrosion resistance.

Available in both flat and hex head designs

The LedgerLOK is a type of wood screw designed to fasten a deck ledger board to the rim joist of a house without pre-drilling. It is available in both flat head and hex head designs.

Flat head screws are a standard countersunk design that allows for a flat, smooth surface after installation. They are available in 82-degree, 100-degree, and metric designs. The 82-degree flat head is the standard option, while the 100-degree flat head is used for thinner materials that require a flat head. The metric flat head screws have a 90-degree head angle. Flat head LedgerLOKs also feature the TORX ttap drive system, which provides a wobble-free installation experience and a flush finish.

Hex head screws have a hexagonal head and are designed to be inserted into a pre-tapped hole. They are commonly used in bolts and driven with the driver's force against the outside of the head. Hex heads allow for greater torque and are often used in automotive and heavy machinery applications. The LedgerLOK hex head design includes a built-in washer, which provides greater bit engagement and eliminates the need for a separate washer.

Both the flat head and hex head LedgerLOK screws offer unique advantages. The flat head design provides a flush finish and is ideal for achieving a smooth surface after installation. On the other hand, the hex head design allows for greater torque and bit engagement. Ultimately, the choice between the two designs depends on the specific requirements of your project.

The TORX ttap drive system provides wobble-free installation

The TORX ttap drive system is an improved and patented version of the original TORX drive system. It combines the patented ttap button with the Genuine Torx drive to provide Stable Drive and Frixion Fit, making screw driving faster, easier and enabling single-hand installations. The unique Frixion Fit technology allows the driver bit to fit perfectly into the screw recess while you drive in the screw with one hand. The ttap stability button provides unmatched Frixion Fit, wobble-free installations and eliminates fastener strip-out. It keeps the fastener straight through installation, allowing for easier and faster operations.

The TORX ttap drive system is widely distributed in many countries and is used by leading manufacturers of stainless steel screws in Europe. It is also available in both flat head and hex head designs for LedgerLOK screws. The flat head design installs flush to the ledger, saving additional time and money. The large hex-head design allows for greater bit engagement, reducing cam-out and eliminating the need for a washer.

The TORX ttap drive system is a premium system that provides a superior, wobble-free installation experience and a flush finished look. It eliminates cam-out and enables easier operations because there is no need to end-load or apply pressure to the driver. The drive angle is perpendicular to the axis of the fastener, eliminating wobbling and enabling Stable Drive.

The TORX ttap drive system is also compatible with TORX bits. However, to benefit from the advantages of the patented and improved ttap pilot feature, an authentic TORX ttap bit must be used. Authentic TORX ttap is produced under license by CAMCAR Innovations and manufactured to very critical, proprietary tolerances. The licensing network ensures that each authentic fastener and driver are made with proprietary tooling that has undergone precise dimensional inspection and is engineered to function properly together.

LedgerLOK Flat Head Screws are not recommended for saltwater applications

LedgerLOK Flat Head Screws are heavy-duty structural wood screws designed to fasten a deck ledger board to the rim joist of a house. They are engineered to install in a fraction of the time versus traditional bolts with fewer steps and less effort. They are also guaranteed to last for the life of the project.

However, despite their anti-corrosive coating, LedgerLOK Flat Head Screws are not recommended for saltwater applications. This is likely due to the highly corrosive nature of saltwater, which could potentially damage the screws over time.

While LedgerLOK Flat Head Screws are not suitable for saltwater exposure, they are approved for use in ACQ-treated lumber and conform to current ICC standards. This means they can be used for outdoor projects, as long as they are not exposed to saltwater.

If you are seeking a similar product for saltwater applications, it is recommended to look for fasteners specifically designed and approved for use in saltwater environments. These fasteners will be made from materials that can withstand the corrosive effects of saltwater, ensuring the durability and longevity of your project.

In summary, while LedgerLOK Flat Head Screws offer a convenient and reliable fastening solution for wood structures, they are not the best choice for saltwater applications. For such projects, it is essential to select fasteners with the appropriate corrosion resistance to maintain the integrity of your structure.

Frequently asked questions