Machine Screws Vs Sheet Metal Screws

Us sheet metal screw diameters.

Machine screws vs sheet metal screws. There are two basic types of sheet metal screws self tapping screws and self drilling screws. The sheet metal screws flaunt a straight shank along with a finer threading pattern other than the wooden rivets which are threaded only two thirds of the way up. 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. Print this page.

A machine screw with a matching nut. Decimal nearest fractional 4 112. Self drilling screw points are numbered from 1 through 5 the larger the number the thicker metal it can go. Think of heating ducts for instance.

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. 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 term self tapping screws or tapping screws or self tappers generally refers to a type of screw that is self.

Usually sheet metal screws are tiny with a sharp point intended for piercing and driving into sheet metal. 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. The metal rivets feature number of pitches than the wooden ones which indicates that they feature a coarser pitch. A guide to terminology.

If you re attempting to attach sheet metal you should choose metal screws. 0 screw is a mere 3 50 of an inch in diameter while a no. Pitch refers to the number of threads per inch. 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.