5.5 x 19 Hex Tek Self Drilling Screws with Washer DIN7504K Bzp
Product Details
Self drilling screws, also known as Tek screws are DIN 7504K. They can drill straignt into thin sheet metal or wood without the need to pre-drill saving time. There are different head types to choose such as hex head tek screws or pozi head self drilling screws. Choose with sealing washers or without.
It is important to get the correct tensile strength using the correct self drilling tek screw diameter and length to provide a secure fixing.
These are bright zinc plated fasteners which is a preventative measure from corrosion. Ideal for using outdoors or in damp or wet environments. Also bear in mind using different materials can cause fusing through corrosion especially in damp conditions when mixed with aluminium or stainless steel materials.
