9-15 x 2 1/2 Unslot Ind HI-Hexwasher w/shoulder Pole Grip type S Full Thrd 1,000hr Salt Spray 3/4-10 NTE The screw is 6-19 inches

The screw is 6-19 inches long and has a diameter of 5/16 inches

which is a type of steel that is resistant to corrosion and rust

It has a hex shape and a 9/16" AF (across flats) size

The zinc plating provides excellent corrosion resistance

These 12-14 x 1 1/4 Phillips Wafer Head Full Thread Self Drilling Screws are made of zinc-plated steel and have a Phillips drive

9-15 x 2 1/2 Unslot Ind HI-Hexwasher w/shoulder Pole Grip type S Full Thrd 1,000hr Salt Spray 3/4-10 NTE The screw is 6-19 inches9 15 x 2 1 2 Unslot Ind HI Hexwasher w shoulder Pole Grip type S Full Thrd 1,000hr Salt Spray: This product is a 9 15 x 2 1 2 Unslot Ind HI Hexwasher with shoulder and Pole Grip type S Full Thrd. It has been tested to withstand 1,000 hours of salt spray, making it highly resistant to corrosion. This product is ideal for use in outdoor applications or in areas where it may be exposed to moisture or salt.