Socket Head Cap Screw Fine Thread Black Steel 7/16-20 * 3-3/4" Grade 8 [Cup Point] [Allen Drive] id_1-1-4 They are at least 25%

They are at least 25% stronger than medium-strength steel screws

The screw has a length of 6-1/2 and a thread of 1/2-20

The screws have a thread of 1-8 and a length of 4-3/4

This hexagonal bolt has a length of 5" with a threading of 1-14 [Partially Threaded]

This hexagonal bolt has a length of 11-1/2" with a threading of 3/4-10 [Partially Threaded]

Socket Head Cap Screw Fine Thread Black Steel 7/16-20 * 3-3/4" Grade 8 [Cup Point] [Allen Drive] id_1-1-4 They are at least 25%With 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 3 3 4 and a thread of 7 16 20. 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.