Machine Screws Vs Sheet Metal Screws

One of the most difficult aspects of being a seller of screws is knowing what your customer is looking for when they ask for self tapping screws.

Machine screws vs sheet metal screws.

Think of heating ducts for instance. If you re attempting to attach sheet metal you should choose metal screws. The term self tapping screws or tapping screws or self tappers generally refers to a type of screw that is self. Print this page.

Self drilling screw points are numbered from 1 through 5 the larger the number the thicker metal it can go. A machine screw with a matching nut. Decimal nearest fractional 4 112. They usually have pan heads and will probably work as a wood screw if you need a substitute.

Us sheet metal screw diameters. A sheet metal screw listed as 4 32 x 1 has a diameter size of 4 32 threads per inch and a length of 1. Usually sheet metal screws are tiny with a sharp point intended for piercing and driving into sheet metal. A guide to terminology.

In short wood screws are designed to be driven into wood materials while metal screws are designed to be driven into metal materials hence the names. Self tapping screws have a sharp tip that is designed to cut through metal but the metal must be pre drilled before these screws can. The shaft diameters of both wood screws and sheet metal screws are not stated in inches but rather by industry numeric gauge sizes ranging from nos. The metal rivets feature number of pitches than the wooden ones which indicates that they feature a coarser pitch.

They are easier to drive into metal and will offer a greater level of strength and security. Similar to sheet metal screws but self drilling screws have a drill shaped point to cut through sheet metal or steel which eliminates the need for drilling a pilot hole we offer the best self drilling screws that are designed for use in soft steel or other metals. There are two basic types of sheet metal screws self tapping screws and self drilling screws. 16 screw is 3 8 inch in diameter.