Flat Head Socket Cap Screws are used for flush mounting of sections

6-20 x 7/16 Phillips Pan Self Drilling Framing Screws Black Phosphate (10000)

3/4-10 x 20 A307A Hex Bolt Hot Dipped Galvanized

Pre-drilling recommended – dependent on substrate

1-8 x 18 A307A Hex Bolt Plain Steel 1-8 Socket Set Screws Cup Point 18-8 Stainless Steel Flat Head Socket Cap Screws1 8 x 18 A307A Hex Bolt Plain Steel. A307A Hex Bolts are manufactured from low carbon steel, typically 1015 1022. Our A307A bolting meets or exceeds ASTM A307 Grade A. Material is manufactured with rolled threads. Zinc plated material meets or exceeds ASTM F1941. Tensile strength will meet or exceed 60,000 psi.