Socket Head Cap Screw Fine & Full Thread Black Steel 1-1/4-12 * 3" Grade 8 [Cup Point] [Allen Drive] thread_size_3-4-16 The screws have a thread

The screws have a thread of 1-8 and a length of 14

This hexagonal bolt has a length of 6" with a threading of 1-1/2-12 [Partially Threaded]

The bolts have a thread of 3/4-10 and a length of 4-1/2

The screw has a length of 2-1/2" and a thread of 3/8-16

This hexagonal bolt has a length of 10" with a threading of 1-1/8-12 [Partially Threaded]

Socket Head Cap Screw Fine & Full Thread Black Steel 1-1/4-12 * 3" Grade 8 [Cup Point] [Allen Drive] thread_size_3-4-16 The screws have 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.