Socket Head Cap Screw Fine & Full Thread Black Steel 9/16-18 * 3" Grade 8 [Cup Point] [Allen Drive] swivels The rod has a thread

The rod has a thread of 1/2-13 and a length of 36"

The screws have a thread of 5/8-11 and a length of 12

Cadmium-Plated Steel washers are corrosion resistant in wet environments

The screws have a thread of 1-3/4-5 and a length of 20

This rod has a length of 36 and a thread of 3/4-16

Socket Head Cap Screw Fine & Full Thread Black Steel 9/16-18 * 3" Grade 8 [Cup Point] [Allen Drive] swivels The rod has a threadWith a tensile strength of 170,000 psi, these alloy steel screws are stronger than Grade 8 steel screws. Length is measured from under the head. Black oxide steel screws are mildly corrosion resistant in dry environments. Fine and extra fine threads are closely spaced to prevent loosening from vibration: the finer the thread, the better the resistance. They are not compatible with coarse threads.