Small Parts 3116BSW Steel Sheet Metal Screw, Zinc Plated, Hex Washer Head, Slotted Drive, Type B, 5/16"-12 Thread Size, 1" Length (Pack of 25)

The zinc plated steel sheet metal screw with hex washer head and slotted drive has a Type B point for forming threads in 0.015"-to 0.050"-thick metals as well as nonferrous castings, plastics, and impregnated plywood. The Type B point has a blunt tip with finer spaced threads than a Type A point. Steel is often used in applications where strength is the primary consideration. The zinc plating offers corrosion resistance and has a reflective appearance. The hex washer head has six flat sides that a wrench can grip to turn from the side, enabling use when there is no space above the head for a screwdriver. The flange acts like a washer to increase the fastener's bearing surface and distribute the clamping force over a larger area, reducing damage to the material being fastened. The slotted drive has a linear slot for use with a flat-blade driver.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.

• Type B point has a blunt tip with fine spaced threads that are suitable for forming threads in holes drilled in 0.015"- to 0.050"-thick metals as well as nonferrous castings, plastics, and impregnated plywood
• Steel is often used in applications where strength is the primary consideration, and the zinc plating resists corrosion and has a reflective appearance
• Hex washer head has six flat sides that a wrench can grip from the side in low-profile applications and has a flange for additional bearing surface to distribute the force over the material being fastened
• Slotted drive has a linear slot for use with a flat-blade driver