8 x 3 1/2 Square Drive Round Washer Head Deep Thread Wood Screw 2/3 Thread Black Oxide NF316 while the Phillips pan head

while the Phillips pan head provides a flush

Carriage bolts are commonly used in woodworking applications to secure joints between two pieces of wood

The screw has a hex head for easy driving and a 3/8-24 thread size

They are also ideal for use in tight spaces or where a low profile is desired

8 x 3 1/2 Square Drive Round Washer Head Deep Thread Wood Screw 2/3 Thread Black Oxide NF316 while the Phillips pan headThese 8 x 3 1 2" Square Drive Round Washer Head Deep Thread Wood Screws with 2 3 Thread and Black Oxide finish are designed for heavy duty wood applications. The square drive head provides a secure grip for driving, while the washer head helps to distribute the load and prevent the screw from sinking into the wood. The deep thread design provides superior holding power, and the black oxide finish offers corrosion resistance. These screws are ideal for