#4-24 x 1/2" (FT) #3HD Sheet Metal Screw Hi-Low Hex Washer Head Stainless Steel 18-8

PRODUCT SPECIFICATIONS (Part # 0000-220291)
Fastener Type:	Sheet Metal Screw Hi-Low Hex Washer Head
Size Description:	#4-24 x 1/2" (FT) #3HD
Diameter/Nominal Size:	#4
Length:	1/2"
Thread Pitch:	24
Thread Direction:	Right
Thread Coverage:	Full
System of Measurement:	Inch
Material:	Stainless Steel 18-8
Finish:	Plain Finish (No Plating)
Head Type:	Hex Washer
Drive Type:	External Hex
Screw Type:	Hi-Low
Average Piece Weight:	0.0010000 lbs.

Sheet metal screws, otherwise known as tapping or self-tapping screws are designed for connecting thinner metal objects to one another or connecting metal to wood, plastic, and other materials; sharp threads draw material together and ensure a secure hold. Sheet metal screws (or SMS's) are made from hardened steel so that the threads create their own mating thread in pre-drilled holes. Sheet metal screws can also be used in other materials, such as wood. Sheet metal screws come in different types. Type A has a coarse thread and sharp point. Type B has a fine thread and a blunt point. Type AB combines the two, with a fine thread and a sharp point.