Socket Head Cap Screw Black Steel 1-3/4-5 * 20" Grade 8 [Cup Point] [Allen Drive] nut The rod has a thread

The rod has a thread of 1/2-13 and a length of 36"

This hexagonal bolt has a length of 8-1/2" with a threading of 1-1/2-6 [Partially Threaded]

The screw has a length of 9" and a thread of 1/2-13

and fastening

but Yellow Zinc provide a higher corrosion resistance than regular zinc

Socket Head Cap Screw Black Steel 1-3/4-5 * 20" Grade 8 [Cup Point] [Allen Drive] nut The rod has 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. The screws have a thread of 1 3 4 5 and a length of 20. 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 with