In an essential part of the building process, deck screws will dominate. There are so many similar choices. Thus, how is anyone to know about the best fasteners?
Different projects require various types. Therefore, this overview below will sum up several parts of screw decks and other fasteners so you can know the differences.
Table of Contents
What to Know About Deck Screws
Decking screws function to fasten deck flooring or joist system. They set the heads below the surface, so the tops are flush.
Exterior deck screws have a continuous even surface of the upper shank. Many of them are from stainless steel, so they resist corrosion and rust.
Essential Parts of Deck screws
Essential parts of deck screws consist of a head, drive, shank, thread, and tip. The shape and design are depending on the materials. Their common types are trim, bugle, hex, truss, and cap.
Within the head of these screws, there is a drive that determines the bit to install the fasteners. Its types include square, Philips, slotted, star, and Allen.
In the part of this screws, you will find spiral sections around the screw’s body. Some composite deck screws feature reverse threads to pull the material downwards.
Moreover, there is a shank between the head and the unthreaded part. It will mark the thickness and width. Its purposes are to pull two pieces of materials and keep the screw from overheating.
Various Styles of the Deck Screw Head
The most popular type is the bugle head. It can be installed flush with the materials. The next style is trim that offers the same holding power of a common nail.
Then, truss deck screws have a large rounded top to jut out above the surface to be fastened. It provides an outsize area below the head. Installation that needs an extended hole can use this style.
Deck screws for treated lumber, framing, joist, ledger, and other structural wood-to-wood applications use a hexagonal head with a built-in washer. That integrated part offers superior holding power.
Undercut or cap head is the best for composite decking material installation. It comes with various colors and blends into the surface for a clean appearance.
Drive Types of Deck Screws
The drive part is essential since it refers to the type of tool for the correct screw installation. Torx, plus, combo, square, slotted, and hex are the types that you can choose.
Each type of drive relates to the amount of torque during the installation. This twisting force includes how often a screw can be slipped or damaged.
The plus drive is a popular type that can be tightened with many different bits in your toolbox. However, stripping the screws commonly happens with it.
For more precise and detailed types, Torx and hex allow the bit to involve with the drive without stripping. They usually have to be purchased separately.
Other Types of Screws
MDF stands for Medium Density Fiberboard. This material appears in some bookcases, shelving, and interior trim. Since it is harder than solid wood, using regular screws seems to be more difficult.
If you force to pierce MDF with regular screws, it will be splitting. Then, there are two choices for the best solutions.
The first choice is still using regular screws, but it will be tedious since you need to predrill pilot holes in the fiberboard. The second option is choosing self-tapping MDF screws to save your work time.
Both MDF and regular screws are available in similar sizes. They also feature the same star-drive heads. However, MDF fasteners exclude predrilling and splitting.
If you want to attach wood planks to a basement floor, masonry screws are the best option. They are known as anchors that also can fasten metal to concrete.
Different from deck screws and other types, masonry doesn’t have a pointed tip. Thus, it does not pierce its hole.
Before inserting the screw, predrill a hole first. If you use masonry with raised hex-heads, the fasteners require specific matching bits.
Decide the matching types and sizes of the bits to predrill holes. Either regular or hammer drill can you use to insert these screws.
Drywall screws feature bugle heads that can avoid tearing the panel cover while countersinking in the surface. Predrilling the holes are not required for these fasteners.
Similar to deck screws, these fasteners are self-tapping. They dig in right while reaching the wood joist. The lengths range from one to three inches.
Standard fasteners are for installing drywall panels to wood. It can be attached to the metal studs if you choose specific screws.
A standard bit set does not include drywall dimples. Therefore, you need to prepare some of them for installation.
The drywall screw with the “+” head has a small protective ring on the tip of the bit. It is also called “shoulder” that functions to avoid being pierced too deep.
Wood screws are the best for both interior and exterior designs. They often coated with zinc to be rust-resistant.
Alkaline Copper Quaternary-compatible wood screws cannot corrode when they countersink with pressure-treated wood. However, they need predrill holes before applying the fasteners.
For basic construction, the length of screws should allow the tip to pierce 2/3 the thickness of the bottom board. About the subject of sizing, wood screws’ width range from 1,6 mm to 8 mm.
The most common size is 15 mm in diameter. However, the precise length of the screw is based on your woodworking project. For instance, finish wood screws have smaller heads to attach trims.
Therefore, you can insert the screw below the wood surface. It creates a tiny hole to be filled with plastic wood.
Wood screws have a coarse thread that holds the wood to the shank. When they are almost drilled, the smooth part spins freely to avoid the head goes deeply to the board.
Finally, after you can differentiate the types of deck screws and others, the right design will perfectly fit your project. The best fasteners will complete the task without splitting, rusting, or mushrooming the materials.
Hopefully, you have already known those types of fasteners and when to utilize them. Choose your deck screws wisely since they will appear on any building project.