10-9 x 3 1/2 Square Drive Round Washer Head Deep Thread Type 17 Wood Screw 2/3 Thrd Black Ox 10-32-.080 which means that it has

which means that it has a raised thread pattern that helps to prevent the screw from loosening

These 4-24 x 3/4" Phillips Full Contour Truss Self Tapping Screw Type AB Fully Threaded Zinc screws are designed for use in truss applications

and a Phillips oval head

This lock nut is suitable for a wide range of applications

Its compact size and precise threading ensure secure and reliable connections

10-9 x 3 1/2 Square Drive Round Washer Head Deep Thread Type 17 Wood Screw 2/3 Thrd Black Ox 10-32-.080 which means that it hasThis 10 9 x 3 1 2" Square Drive Round Washer Head Deep Thread Type 17 Wood Screw 2 3 Thrd Black Ox is made of steel and has a black oxide finish. It has a square drive, a round washer head, and a deep thread. It is 10 9" long and has a 3 1 2" diameter. It is a Type 17 wood screw and has a 2 3 thread.