8-32 x 5/16 Phillips Truss Thread Cutting Screw Type F Fully Threaded Zinc 1-8 NE It has a 6-lobe drive

It has a 6-lobe drive and is made of steel

With a diameter of 10-32 and a length of 4 1/2 inches

Made from high-grade A4 stainless steel

while the flat undercut design allows for a flush fit against the surface

8-32 x 5/16 Phillips Truss Thread Cutting Screw Type F Fully Threaded Zinc 1-8 NE It has a 6-lobe drive8 32 x 5 16 Phillips Truss Thread Cutting Screw Type F Fully Threaded Zinc: Thread size: #8 32 Length: 5 16 inches Drive type: Phillips Head style: Truss Thread type: Thread cutting Material: Steel Finish: Zinc plated Fully threaded: Yes Ideal for fastening metal to metal or metal to wood Sharp point for easy penetration Truss head provides a low profile and increased holding power Zinc plating offers corrosion resistance