8-18 x 1 5/8 Phillips Modified Truss head Self Drilling Screw Full Thread Zinc 3/8-16 It has a hex head

It has a hex head with an indented drive for increased torque and a 1/4-20 thread size

while the square drive helps to prevent stripping

The screw has a Phillips flat head and a 100º point

and it is commonly used in furniture assembly

8-18 x 1 5/8 Phillips Modified Truss head Self Drilling Screw Full Thread Zinc 3/8-16 It has a hex headThe 8 18 x 1 5 8 Phillips Modified Truss head Self Drilling Screw Full Thread Zinc is a versatile and durable screw designed for a wide range of applications. Its self drilling tip eliminates the need for pre drilling, saving time and effort. The modified truss head provides a low profile and increased holding power, making it ideal for use in metal to metal applications. The full thread design ensures maximum strength and grip, while the zinc coating