1/4-20 x 1 1/2 Six Lobe Flat Floor Board Screw Type F Black Phosphate BPFB It is made from A2

It is made from A2 stainless steel

5/8-11 x 2 Hex Tap Bolt Low Carbon Fully Threaded Zinc is a type of bolt that is used to fasten materials together

The screw is 1/2 inch in diameter and 3/4 inch in length

They have a square pan head and a Type A point

7 x 14 ISO7380 Metric 6-Lobe Button Head Cap Screw is a type of screw that is used in a variety of applications

1/4-20 x 1 1/2 Six Lobe Flat Floor Board Screw Type F Black Phosphate BPFB It is made from A21 4 20 x 1 1 2 Six Lobe Flat Floor Board Screw Type F Black Phosphate is a screw designed for use in floorboards. It is made of steel and has a black phosphate finish. The screw has a 1 4 20 thread size and is 1 1 2 inches long. It has a six lobe flat head and a Type F thread. The screw is designed to be driven into the floorboard with a power screwdriver. It is commonly used in commercial and residential construction.