Self Tapping Screws

Self tapping screws are often referred to as self tappers or PK'S as many of them were orginally manufactured by the Parker-Kalon company. In America they are known as sheet metal screws as they are for use in sheet metal up to 3mm in thickness. Sucessful installation is dependant on the correct size of hole being drilled or punched to suit both the diameter of screw and also the gauge of sheet metal that screw will be fitted to, this will prevent head shear and make installation effortless. Self tapping screws are available from Orbital Fasteners in Countersunk Pozi to DIN 7982, Pan Pozi to DIN 7982 and Flange Pozi to DIN 4174, we stock each product in steel bright zinc plated and stainless steel. Steel flange head versions are also available from stock in a black finish.

Pan Pozi Self Tapping Screws A2 Stainless Steel

Pan Pozi Self Tapping Screws A2 (304) DIN 7981

Countersunk Self Tapping Screws A2 Stainless Steel

Countersunk Pozi Self Tapping Screw A2 (304) DIN 7982

Pan Pozi Self Tapping Screws BZP

Pan Pozi Self Tapping Screws DIN 7981 BZP

Countersunk Self Tapping Screws BZP

Countersunk Pozi Self Tapping Screw DIN 7982 BZP

Pan Pozi Flange Self Tapping Screws Type AB BZP

Mild steel flange pan pozi self tapping screw type AB. Bright zinc plated. DIN 4174

Black Pan Pozi Flange Self Tapping Screws Type AB BZP

Black flange pan pozi self tapping screw type AB. Bright zinc plated. DIN 4174

The most popular selling vesions are screws with a sharp pointed end, these are usually known as type AB. Also in use is a version with a blunt end known as a type B, this type are often used in mass production as the blunt ends make them easier to handle and less likely to cause injury. The type B has another benefit, in that they have a little more thread than an AB type of the same length therefore making the use of a shorter screw sometimes possible.

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