Bulk 5/16″-18 Indented-Hex Thread-Cutting Screws — Type F, Bright-Zinc Steel Length:1000 Qty - 5/16-18 x 1-1/4" Length: in 3/4" and 1"

Length: in 3/4" and 1" lengths (fully threaded)

Thread Cutting: Type F tip taps threads into pre-drilled holes in thick metal materials

Head Style: 6-lobe pan

Type F Point: UNF machine thread with fluted slot—ideal for 0

Bulk 5/16″-18 Indented-Hex Thread-Cutting Screws — Type F, Bright-Zinc Steel Length:1000 Qty - 5/16-18 x 1-1/4" Length: in 3/4" and 1"Monster Overview: Designed for trailer frames, dock plates, heavy gauge sheet metal and hardwood to steel joins, these 5 16 18 Indented Hex Thread Cutting Screws put bolt level clamp force on tapno backing nut required. The external hex drive takes sockets or impact drivers for fast, high torque installation. Each heat treated carbon steel blank is finished in brilliant bright zinc, hydrogen relief baked to IFI spec, then coated with a factory dry wax