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they resist loosening from counterclockwise motion
the better the resistance
This hexagonal bolt has a length of 4" with a threading of 1-1/8-12 [Partially Threaded]
This hexagonal nut fit a threading of 1-1/4-12
This hexagonal nut fit a threading of 7/8-14
Socket Head Cap Screw Black Oxyde Alloy Steel 10-24 * 9" Grade 8 [Cup Point] [Allen Drive] length_20mm they resist loosening from counterclockwiseWith a tensile strength of170, 000psi, these alloy steel screws are stronger than Grade 8 steelscrews. Length is measured from under the head. Black oxide steel screws are mildly corrosion resistant in dry environments. Coarse threads are the industrystandard: choose these screws if you dont know the pitch or threads per inch. Screws that meet ASTMA574, ASTMA574M, and ISO898 1comply with specifications and testing requirements for materialquality.
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