Dimensions Of Sheet Metal Screws

Sheet metal screw size is commonly given using a series of three numbers which represent the diameter thread count and length of each screw.

Dimensions of sheet metal screws.

Page 1 of 2 fastenal product standard rev 03 date. Self drilling screws also called teks have a tip that resembles a drill and often have spaced threads like sheet metal screws. May 12 2017 sms fph a ss sheet metal screw flat countersunk head cross recessed type a 18 8 stainless steel the information below lists the required dimensional chemical and physical characteristics of the products in this purchase order. 3 count the number of threads in 1 inch to get the thread spacing value.

Drill bit size inch 0 80 3 64in 1 64. 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. Select the head type and overall size you need in lengths ranging from 1 4 l to 4 l. Nominal screw size number of threads per inch 2 32 3 28 4 24 5 20 6 20 7 19 8 18 10 16 12 14 1 4 14 5 16 12 3 8 12 48 46 44 36 32 30 29 21 3 16 5 5mm i 21 64 0760 0810 0860 1065 1160 1285 1360 1590 1875 2165 2720 3281 drill size hole diameter nominal screw size number of threads per inch 6 18 7 16 8 15 10 12 12 11 14 10 20 9 24 9 32 30 29 21 3 16 5 5mm l 11 32 1160 1285 1360 1590 1875.

Shop for sheet metal screws. For example a 0 gauge screw is 1 16 of an inch in diameter 1 is 5 64 of an inch a 2 is 3 32 of an inch and so on. Lay the screw next to a ruler or measuring tape and hold it steady. Do not use self drilling screws in blind holes holes that do not pass through the material.

These sizes were standardized based on sizes already commonly in use in the market. For example a screw listed as 8 32 x 1 has a diameter of size 8 contains 32 threads per inch and is one inch 2 5 cm long. Grainger offers a huge selection of sheet metal screws for your hvac and other metalwork projects. Order your supply online from grainger.

Steel hardened steel low carbon steel and stainless steel give sheet metal screws long lasting durability. An industry numeric size preceded by a sign. Tap and drill size chart standard tap size. Sizes of 4 40 to 3 8 16 are common.

In a single time saving operation these screws drill tap and fasten.