Corrosion-resistant stainless steel screws, nails and bolts in grades 304 and 305 can be used for copper-treated wood in most areas, while grade 316 should be used in coastal areas. But stainless steel fasteners can cost five to 10 times more than similar galvanized fasteners.

Hereof, What kind of screws are best for wood?

Conventional wisdom has always been that screws with fine threads are best for hardwoods β€” oak, cherry, maple, birch, etc. β€” while coarse-threaded screws drive and hold better in softwoods, plywood and composite sheet goods (particleboard, MDF, etc.).

Is it better to nail or screw deck boards? Deck screws are the best, hands down. Nails will rise up and create a hazard and they tend to corrode more quickly. Screws are more expensive but hold better and won’t corrode if you use the correct type.


22 Related Questions Answers Found

 

What are the best deck screws for treated lumber?

Best Deck Screws for Pressure Treated Wood
  • #10 x 2-1/2″ Stainless Steel Deck Screws, (350 Pack, 4.2 lb) Star Drive T25, Type 17 Wood Cutting Point, 18-8 (304) Grade Stainless Steel, by Eagle Claw Tools and Fasteners.
  • The Hillman Group 47694 6-Inch x 2-Inch Galvanized Deck Screw.
  • Galvanized Dual Torq Deck Screw #8 x 1-1/4″

Can you use regular nails in pressure treated wood?

Regular steel will rust quickly and loose strength. Also, the C in the ACQ is for copper, which reacts with steel (dissimilar metals) to cause regular nails to corrode quickly and loose shear strength. Harold, ACQ treated lumber uses copper as one of it’s preservatives, causing a galvanic reaction with steel fasteners.

Can you use composite deck screws on pressure treated wood?

Not really. For wood decks (pressure treated and cedar) it depends on whether or not you choose to screw or nail the decking down. The head of these screws are coated to match the most popular tones of composite – including grey, sand, red and dark brown.

Can you use regular nails in pressure treated wood?

Nail manufacturers recommend that you go with aluminum or stainless steel fasteners when you‘re using either of these woodsβ€”and whenever you‘re using pressuretreated wood. (The preservatives incorporate salts that react with the zinc.) Also, never use galvanized nails with copper flashing.

Can you use aluminum nails in pressure treated wood?

Nail manufacturers recommend that you go with aluminum or stainless steel fasteners when you‘re using either of these woodsβ€”and whenever you‘re using pressuretreated wood. (The preservatives incorporate salts that react with the zinc.) Also, never use galvanized nails with copper flashing.

Is it better to nail or screw deck boards?

Deck screws are the best, hands down. Nails will rise up and create a hazard and they tend to corrode more quickly. Screws are more expensive but hold better and won’t corrode if you use the correct type.

Can I use normal screws for decking?

Decking screws are made of coated steel or copper, which makes them corrosion-resistant. This makes them ideal for decking as they can withstand all manner of weather conditions. You can use the decking screws for soft and hard wood applications.

Are zinc plated screws rust proof?

Can drywall screws be used in pressure treated lumber?

It is a very bad idea to use dry wall screws with treated lumber. They should also come back and remove the drywall screws and replace them with an ACQ compatible screw.

What kind of screws are best for wood?

Conventional wisdom has always been that screws with fine threads are best for hardwoods β€” oak, cherry, maple, birch, etc. β€” while coarse-threaded screws drive and hold better in softwoods, plywood and composite sheet goods (particleboard, MDF, etc.).

Do drywall screws rust?

Although the coating does help prevent rusting, it doesn’t stop rusting altogether, which is why black drywall screws are recommended only for indoor projects, due to their tendency to sometimes rust. Basically, they’re meant to attach drywall to a wooden frame and not to be misused for other purposes.

Does aluminum react with pressure treated wood?

One such interaction is when aluminum is in contact with pressure treated wood. The pressure treated wood contains copper, along with other metals, that interacts with aluminum and causes the corrosion.

Should you pre drill deck boards?

PreDrilling Holes: The main benefit of predrilling holes for deck screws, or any screws, is simply preventing the wood from splitting. Often this is the only way to prevent splitting when driving screws (or nails) close to the end of a board.

What length deck screws should I use?

Most decking screws are 8-gauge and, while 2 1/2 inches is the minimum length needed to hold decking boards to the joists, 3-inch screws are commonly used to provide extra holding power against the upward pressure of shrinking or warping boards. Specialty decking materials have different requirements.

How far should screw decking be from edge?

Using pressuretreated wood for projects like wooden decks and fences will keep your outdoor structures beautiful for years by resisting termites, rot and fungal decay.

How far should screw decking be from edge?

Zinc Plating

Fasteners that have been zinc plated have a shiny, silvery or golden appearance, referred to as clear or yellow zinc respectively. They are fairly corrosion resistant but will rust if the coating is destroyed or if exposed to a marine environment.

How many screws should I put in decking?

Each deck board should be fastened with two screws at each point where the board crosses a joist to ensure the stability and durability of your deck’s surface. Boards should be fastened to rim joists with three screws.

What are the best screws for decking?

Galvanized screws work well with pressure-treated decking, while Redwood or Western Red Cedar decks are usually built with stainless steel screws to prevent staining around the screw heads.

Can you wrap treated wood with aluminum?

You can‘t wrap treated wood on your porch or screen room in aluminum. If so, count on replacing it in a few years after the chemicals from the treated wood cause a chemical reaction with the aluminum and it starts to corrode and flake away. If you have any bubbling spots on the aluminum, that’s an early sign.

Can you drill into pressure treated wood?

Touching Up Holes in PressureTreated Lumber. When building a deck, you often have to drill holes in pressuretreated wood for bolts or wires. The best practice is to apply a wood preservative to the inside of the holes to prevent rot, the same way you apply preservative to end grain after making a cut.

Can you use galvanized screws pressure treated wood?

Mechanically galvanized screws are generally suitable for decks and other outdoor projects made of pressure-treated lumber. Nevertheless, you should not use them with PT lumber in contact with the soil, in high-moisture areas, or in areas with salt content in the air.

Will pressure treated wood corrode metal?

In Contact with Treated Wood. The change in chemical formulations increased the corrosivity of the wood when in contact with metal parts. The two most popular chemicals for wood pressure treatment are alkaline copper quaternary (ACQ) and copper azole (CA), which are both active corrosion materials.

Can I use Galvanised screws in treated pine?

When a galvanised fastener is used in treated pine, its zinc content is targeted by the copper oxide; it is then depleted of its electrons, and then accelerates into corrosion. Screws for treated pine, on the other hand, feature a coating that is especially-formulated to resist the copper in CCA and ACQ treatments.

Can I use Galvanised screws in treated pine?

Professional builders using standard 5 1/2-inch-wide deck boards attach them at each joist with screws set one to two inches from each edge of the board. The exact measurement doesn’t matter as much as uniformity of spacing for appearance’s sake.

Will deck screws rust?

Stainless steel screws are rust-resistant throughout the entire screw, not just on the surface. (1) Stainless steel is slightly softer than the hard steel used in deck screws or other similar screws. You can‘t just “go crazy” with the power tools and slam the screws into place.

Should you countersink deck screws?

If you are face-driving deck screws, it is acceptable to β€œself-countersink” them. Some deck screws even have a little cutter head built into the screw, to facilitate countersinking.

What screws are best for outdoor use?

Stainless steel decking screws are another great option when it comes to outdoors screws and nails, as well as stainless steel screws. Both have properties that make them weather resistant, and are especially hardy against rain.

Can I use normal screws for decking?

Decking screws are made of coated steel or copper, which makes them corrosion-resistant. This makes them ideal for decking as they can withstand all manner of weather conditions. You can use the decking screws for soft and hard wood applications.

Can I use galvanized screws in treated lumber?

If you are face-driving deck screws, it is acceptable to β€œself-countersink” them. Some deck screws even have a little cutter head built into the screw, to facilitate countersinking.

Do deck screws rust?

Stainless steel screws are rust-resistant throughout the entire screw, not just on the surface. (1) Stainless steel is slightly softer than the hard steel used in deck screws or other similar screws. You can‘t just “go crazy” with the power tools and slam the screws into place.

What is ACQ screw?

Mechanically galvanized screws are generally suitable for decks and other outdoor projects made of pressure-treated lumber. Nevertheless, you should not use them with PT lumber in contact with the soil, in high-moisture areas, or in areas with salt content in the air.