DIN7976 Hexagon Head Tapping Screws

DIN 7976 hexagon head self-tapping screws feature a six-sided head that allows tightening with a wrench or socket tool. Their self-tapping threads form mating threads in suitable base materials, while the hexagonal head provides a firm tool-engagement surface for installation. This head design is particularly useful in assemblies where a slotted or cross-recessed drive is less convenient.

These screws are commonly used for fastening sheet metal panels, metal brackets, equipment housings, and structural components made from suitable materials. The hexagon head is practical when installation requires access for a wrench or socket, while the thread size and screw length must match the material thickness and required engagement. Material selection and surface finish should also take into account the operating environment and corrosion resistance requirements.

Specification:

Dimension Chart of DIN7976 Hexagon Head Tapping Screws:

The DIN 7976 dimension chart brings together the measurements required to match the tapping screw with the joint and installation tool. The nominal screw diameter and length determine how much material can be engaged, while the hexagon head dimensions determine the appropriate wrench or socket size. For sheet-metal assemblies, the relationship between screw length and component thickness is particularly important to provide sufficient thread engagement without excessive penetration through the workpiece.

Key dimensions include the nominal diameter (d), screw length (l), width across flats (s), head height (k), and point length or configuration where applicable. The chart can be used to compare different DIN 7976 sizes and select a screw that provides suitable thread engagement, adequate head bearing, and sufficient tool clearance for the intended assembly.