TPOHH Wood Screws, #4

For fastening wood in a damp area or keeping matching hardware on hand for a small project, these TPOHH screws offer a black finish and a Phillips drive. Each screw is #4 by 0.87 inches long, with a flat head and full threading. The pack contains 100 screws, which can be useful when you want spares for repeat repairs. One detail to keep in mind: the listing gives the material and coating but no rating for a particular outdoor exposure, so the setting matters.

Technical details

These are #4 wood screws made from 18-8 (A2) stainless steel with a black oxide coating. They measure 0.87 inches (22 mm) long, and the listed thread diameter is 0.112 inch. The threads are coarse, the head is flat, and the drive is Phillips #2. They are full threaded, so threads run along the screw rather than leaving an unthreaded section at the top of the shank. The package includes 100 pieces.

That combination makes the screws a more specific choice than a basic uncoated wood screw: the black finish may suit projects where visible hardware needs to blend into a darker surface, while the stainless steel is intended for corrosion resistance. The listing does not provide a coating thickness or an exposure rating, though, so the description alone cannot establish how the finish will hold up in every wet or outdoor setting.

Everyday compatibility

The stated uses are wood and wet environments. For a small repair, such as fastening a dark-stained wooden panel, the flat head can sit flush when the wood and hole are prepared appropriately. A black screw can also look less conspicuous than bright hardware on a dark surface. For a project where a specific appearance or outdoor rating matters, a screw with clearly documented finish or exposure specifications may be a better fit.

It suits you if you need #4 screws for wood, want a black-coated finish, and can use a Phillips #2 driver. Not the best choice if your project calls for a different head or drive, or if you need a stated rating for prolonged exposure to the elements, neither is listed here.

Usage tips

The product information recommends pre-drilling. That is worth following when the wood is prone to splitting or the screw is being placed near an edge, while choosing the pilot hole for the particular wood and fastener. Keep the driver aligned with the Phillips recess as you work, a poor fit or angled pressure can damage the drive. Because these screws are fully threaded, check that the length and placement suit the pieces being joined before fastening. The 0.87-inch length is the key dimension to compare with your project.

Practical doubts

What driver do these screws use? The listed drive is Phillips #2.

Are they fully threaded? Yes. The product description identifies them as full threaded, with coarse threads.

What are they made of? They are 18-8 (A2) stainless steel with a black oxide coating. The listing does not specify a separate outdoor-use rating.

Should you buy it?

Choose this pack when the #4 size, 0.87-inch length, flat head, and black finish match a wood project and you want 100 screws on hand. The stainless steel and coating make the stated damp-environment use relevant, but they are not a substitute for a documented exposure rating when the fastener will face demanding conditions. If appearance and the listed dimensions fit, this is a practical alternative to buying generic bright screws, if you need a different drive, head style, or clearer environmental specifications, look for those details before choosing.