10-9 x 2 1/2 Square Phillips Drive Round Washer Deep Thread Type17 2/3 Thread Black Oxide MSF188 and it has a wax

and it has a wax coating for improved lubrication and ease of installation

they provide a secure and reliable hold in various applications

These 8-15 x 7/16 Phillips Pan Self Tapping Screw Type A Fully Threaded Zinc are designed for use in a variety of applications

The screw is 12-11 in diameter and 2 1/2 inches in length

10-9 x 2 1/2 Square Phillips Drive Round Washer Deep Thread Type17 2/3 Thread Black Oxide MSF188 and it has a wax10 9 x 2 1 2 Square Phillips Drive Round Washer Deep Thread Type 17 2 3 Thread Black Oxide is a type of screw that is commonly used in construction and manufacturing. It has a square Phillips drive, which means that it can be tightened or loosened using a Phillips head screwdriver. The screw has a round washer head, which helps to distribute the load of the screw and prevent it from pulling through the material. The deep thread type 17 2 3 thread