Socket Head Cap Screw Fine Thread Black Steel 1-12 * 6" Grade 8 [Cup Point] [Allen Drive] thread_size_2-1-4-12 is the distance a nut

is the distance a nut or handle moves with one revolution of the lead screw

This hexagonal bolt has a length of 9" with a threading of 7/8-9 [Partially Threaded]

The screw has a length of 6" and a thread of 5/8-11

The screws have a thread of 1-3/4-5 and a length of 6

Socket Head Cap Screw Fine Thread Black Steel 1-12 * 6" Grade 8 [Cup Point] [Allen Drive] thread_size_2-1-4-12 is the distance a nutWith 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. The screw has a length of 6 and a thread of 1 12. Alloy 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.