8 x 1 1/4 Flat Head (no nibs) Square Drive Deep Thread Wood Screw 2/3 Threaded Black Ox LPT188 This 5/16-18 x 5 1/2

This 5/16-18 x 5 1/2 carriage bolt is made of steel and has a zinc finish

It has a zinc coating for corrosion resistance and a hex head for easy installation

while the cutting threads allow for easy installation

It is made of durable zinc-plated steel and has a Phillips pan head for easy driving

4-24 x 1 Phillips Pan Self Tapping Screw Type B Fully Threaded 18-8 Stainless Steel

8 x 1 1/4 Flat Head (no nibs) Square Drive Deep Thread Wood Screw 2/3 Threaded Black Ox LPT188 This 5/16-18 x 5 1/2These 8 x 1 1 4 flat head square drive deep thread wood screws are made of steel with a black oxide finish. They have a flat head with no nibs and a square drive. The deep thread design provides a strong hold in wood. These screws are 2 3 threaded, meaning that the threads extend about two thirds of the length of the screw. They are commonly used in woodworking projects, such as building furniture, decks, and fences.