8-15 x 1 Square Drive Flat Head Full Body Wood Screw 2/3 Thread Zinc 2 3/4-12 It has a round head

It has a round head with a square neck below the head

while the hex head allows for easy installation and removal with a standard wrench

The 4-40 x 1/8 Slotted Binding Undercut Machine Screw is a fully threaded screw made of 18-8 stainless steel

They are also resistant to vibration and loosening

8-15 x 1 Square Drive Flat Head Full Body Wood Screw 2/3 Thread Zinc 2 3/4-12 It has a round headThese 8 15 x 1 Square Drive Flat Head Full Body Wood Screws 2 3 Thread Zinc are designed for use in woodworking applications. They feature a square drive head that provides increased torque and reduces cam out. The flat head sits flush with the surface of the wood, providing a clean and professional finish. The full body threads provide maximum holding power, while the 2 3 thread design allows for easy starting and reduced splitting. The zinc coating