Flat head fasteners are designed to fit flush to the surface when used with countersunk holes. Screw is a hexagon-shaped hole. Great for use with pressure treated wood. It provides corrosion resistance. They're an ideal choice for garden and patio furniture, as well as for general exterior construction. Self-tapping screw tips make for easy driving.
## Product Description
Socket screws are reliable and durable and are used in many applications
Flat head fasteners are designed to fit flush to the surface when used with countersunk holes
Socket screws are sturdier and are easier to thread and unthread compared to fine
Alloy steel is one of the strongest materials used in fasteners, making this an ideal material to use when the primary concern is the application pulling apart
Coarse threads are better for brittle materials, and will assemble and disassemble more quickly than fine threads
Low head is perfect for tight areas
Screwis a hexagon-shaped hole
Material: Alloy Steel
Size:M4 x 20mm(Dia. x L)
It provides corrosion resistance
How to Choose the Right Screw
Using the wrong screw can frustrate you and possibly ruin your project. Choose the right one and save yourself the headache. Here are some guidelines.
Think about the thickness of the materials. About two-thirds of the screw should go into the second piece, but the screw should not extend through the other side.
Use lag screws, which are heavy-duty wood screws, for wood-metal fastening.
Use wood screws to hold wood.
Drive a sheet metal screw into thin metals after making a pilot hole. These screws have threads that cut the hole and are made to fasten metal to metal.
Attach a table leg to a table with a dowel screw, which is threaded on both ends.
Put up Sheetrock with a wallboard or Sheetrock screws. These are long and very hard.
Hold particleboard together with particleboard screws. These have wide, sharp threads.
Look for utility screws for appliances and general around-the-house use.
Find one-way screws for places that need to be permanently secure. These screws are very difficult to unscrew.
Countersink flathead screws.
Leave the tops of roundhead wood screws exposed. They are used for attaching thin wood pieces or metal to thicker pieces of wood.
* 100 x Flat Head Hex Socket Alloy Steel Screws