Steel Sheet Metal Screw, Black Oxide Finish, Undercut 82 degrees Flat Head, Phillips Drive, Type AB, 6-20 Thread Size, 1/4" Length (Pack of 100)

• Type AB point has a conical tip and fine spaced threads that are suitable for forming threads in thin metals between 0.015" and 0.050" thick and resin impregnated plywood
• Steel is often used in applications where strength is the primary consideration, and the black oxide finish offers mild corrosion resistance and lubricity
• Undercut flat head has a flat top with an 82-degree cone-shaped bearing surface and is undercut for use in shallow countersunk holes
• Phillips drive has an x-shaped slot that accepts a Phillips driver and is designed to prevent over-tightening

The black oxide finish steel sheet metal screw with undercut 82-degree flat head and Phillips drive has a Type AB point for forming threads in thin metals between 0.015" and 0.050" thick and resin impregnated plywood. The Type AB point has the conical tip of a Type A point with the finer spaced threads of a Type B point. Steel is often used in applications where strength is the primary consideration. The black oxide finish offers mild corrosion resistance and lubricity. The undercut flat head has a flat top with an 82-degree cone-shaped bearing surface and is undercut to a lower head height for use in shallow countersunk holes. The Phillips drive has an x-shaped slot that accepts a Phillips driver and is designed to allow the driver to slip out of the head to help prevent over-tightening and damage to the thread or fastener.Sheet metal screws, a type of self-tapping screw, have threads down the entire length of the shank for tapping and fastening thin material. The point style determines the type of material the screw can be used on, such as metal, wood, or plastic. These screws commonly have a sharp point that helps penetrate the material.