5/16-18 x 2" Flat Head Countersunk Screws Hex Socket Cap Bolts, 304 Stainless Steel 18-8, Full Machine Thread, Pack of 15

Package Included: 15pcs | Screws Length: 2" (including head) , Thread Diameter: 5/16" (0.3125") , Thread Pitch:18 (0.0555") . | Size: thread diameter d * screw length L (including head) | Allen Hex Drive Size: 3/16" | Fantastic corrosion resistance , provides good strength and corrosion resistance in bad environments.not need for time consuming and costly maintenance.