#8-18 x 4" (FT) Sheet Metal Screw Phillips Flat Head Type AB Low Carbon Steel Zinc Plated

PRODUCT SPECIFICATIONS (Part # 0000-213189)
Fastener Type:	Sheet Metal Screw Phillips Flat Head Type AB
Size Description:	#8-18 x 4" (FT)
Diameter/Nominal Size:	#8
Length:	4"
Thread Pitch:	18
Thread Direction:	Right
Thread Coverage:	Full
System of Measurement:	Inch
Material:	Low Carbon Steel
Finish:	Zinc Plated
Head Type:	Flat
Drive Type:	Phillips
Screw Type:	AB
Average Piece Weight:	0.0170600 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.