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The screw has a length of 2" and a thread of 1-1/2-6
The screw has a length of 2-3/4" and a thread of 1-8
and flanges
The nuts have a thread of 3/4-10 and a lenght of 1-3/4
Socket Head Cap Screw Black Steel 1-1/2-6 * 3-1/4" Grade 8 [Cup Point] [Allen Drive] grade-9 The screw has a lengthWith 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 screws have a thread of 1 1 2 6 and a length of 3 1 4. Black oxide steel screws are mildly corrosion resistant in dry environments. Coarse threads are the industry standard: choose these screws if you dont know the pitch or threads per inch. Screws that meet ASTM A574, ASTM A574M, and ISO 898 1 comply
