Browse By Letter

Search engineering dictionary:


A Sheet Metal Screw

Sheet metal screws with (a) sharp pointed ends; and (b) fewer threads per inch than type AB screws; and (c) deeper threads with bettere gripping power than type AB. The industrial Fasteners Institue incorrectly labes type A an ?obsolete? thread though it is universally preferred in 18 8 stainless over type AB, especially by the marine industry.