Socket Head Cap Screw Full Thread Silicone Bronze 5/16-18 * 3/4" [Cup Point] [Allen Drive] length_3-1-4 This hexagonal bolt has a

This hexagonal bolt has a length of 8-1/2" with a threading of 3/4-10 [Partially Threaded]

Cadmium-Plated Steel washers are corrosion resistant in wet environments

This hexagonal bolt has a length of 4" with a threading of 1-1/8-7 [Partially Threaded]

They are not compatible with coarse threads

Socket Head Cap Screw Full Thread Silicone Bronze 5/16-18 * 3/4" [Cup Point] [Allen Drive] length_3-1-4 This hexagonal bolt has aBronze screws are about 40% stronger than brass screws and provide more corrosion resistance to salt water, gases, and sewage. They are nonmagnetic and electrically conductive. Length is measured from under the head. The screw has a length of 3 4" and a thread of 5 16 18.