Description
Overview
DIN7981 defines a self tapping screw style designed to form or cut its own mating thread in suitable materials. Self tapping screws reduce the need for a separate nut and are useful in sheet metal, plastics and light assemblies.
This selected size is specified with diameter M4, length 40 mm, thread M4.
Sold in multiples of '1 pieces. 1 Box = '1 pieces.
Material, Grade & Strength
A4 / 316 stainless steel provides enhanced corrosion resistance for coastal, marine, chemical and harsh outdoor environments.
Finish & Corrosion Protection
Match the finish to the operating environment and corrosion exposure.
Typical Uses
Commonly used in sheet metal work, appliance repair, light fabrication, plastic housings, electrical enclosures and maintenance.
Technical Tips
- Use the correct pilot hole for the material thickness.
- Avoid over-tightening, which can strip the formed thread.
- Choose the correct drive bit to prevent cam-out and head damage.
Selection Advice
Confirm the standard, size, material, finish and drive style before ordering to ensure compatibility with the assembly.
Specifications
No structured specifications are available yet.