Sizing Sheet Metal Screws

Hilitchi 190 pieces 10 stainless phillips drive hex washer head self drilling sheet metal tek screws with drill point 1 2 to 1 1 4 size inside plastic box 8 by hilitchi 15 78 15.

Sizing sheet metal screws.

Tap and drill size chart standard tap size. Sheet metal screw to drill bit size table screw size drill bit size 2 3 32in 4 1 8in 6 5 32in 8 3 16in 10 13 64in 12 1 4in 1 4in 9 32in 5 16in 21 64in 3 8in 25 64in. Steel hardened steel low carbon steel and stainless steel give sheet metal screws long lasting durability. Decimal 0 060 1 073 2 086 3 099 4 112 5 125 6 138 7 151 8 164 9 177 10 190 12 216 14 250.

Length is the distance from the flat part of the head to the tip or blunt end of the screw or bolt. Teks 9 x 1 1 2 in. Length of screws bolts. 78 15 99 15.

Grainger offers a huge selection of sheet metal screws for your hvac and other metalwork projects. The engineered drill point and flute remove material efficiently and properly size the hole for threads. Almost all screw head types will either be flat on. It s pretty easy to do all you need is a measuring tape or a ruler and the screws in question.

The simplest way to remember how to measure length. Hex head roofing screws provide secure metal to metal fastening with strong holding power without the need to pre drill. Decimal nearest fractional 4 112. Understanding screw sizes inch standards screws with a diameter smaller than 1 4 have a nominal size indicated by a number e g.

Sequences like 4 30 x 10 1 8 10 x 4 6 and m5 4 x 15 may seem meaningless but they say a lot and you need the right screw to do the job. Screw sizes are written in an odd looking code. If the screw size includes a dash with a number following it that is the. 1 4 and larger diameters are shown as inches.

Drill bit size inch 0 80 3 64in 1 64. After a hole has been tapped by a thread cutting screw it can be replaced by a machine screw of the same size diameter and number of threads per inch. Print this page. Hex head roofing screws teks 9 x 1 1 2 in.

Purchasing or using the wrong type of screw can lead to wasted effort time expenses or a failed project. Us sheet metal screw diameters. Self drilling screws also called teks have a tip that resembles a drill and often have spaced threads like sheet metal screws. The diameter refers to the major diameter or outside edge of the threads.

Sizes of 4 40 to 3 8 16 are common.