8-11 x 1 1/4 Square Phil Drive Flat w/Nibs Deep Thread Wood Screw 2/3 Thread Type 17 Black Ox 5/16-18 NTE 8 grade indicates a tensile

8 grade indicates a tensile strength of 800 MPa

Their large size provides ample surface area for secure fastening

while the 1/2-inch length ensures that the screw will penetrate deep into the material

These 8-18 x 3/4 Phillips flat self-drilling screws are made of steel with a black oxide and oil finish

It is also commonly used in automotive and construction applications

8-11 x 1 1/4 Square Phil Drive Flat w/Nibs Deep Thread Wood Screw 2/3 Thread Type 17 Black Ox 5/16-18 NTE 8 grade indicates a tensileThese 8 11 x 1 1 4" Square Phil Drive Flat w Nibs Deep Thread Wood Screws are designed for superior holding power in wood applications. Made from durable steel, they feature a black oxide finish for corrosion resistance. The square Phil drive head provides a secure grip for driving, while the nibs under the head help prevent the screw from splitting the wood. The deep thread design ensures a strong hold, even in softwoods. These screws are ideal for a