J-System DIN7504K ZSK SW8 ZN hex head 5.5 x 19

This type of screw is used to fasten thin materials such as sheet metal to each other or to a substructure. Because of the hex head you tighten the screw with a socket wrench or socket bit, so you get a good grip and the screw is less likely to slip out than with a slotted or cross head.

What does the code DIN7504K ZSK SW8 ZN mean?

DIN7504 is the standard for sheet metal screws with a special thread for metal. The letter K refers to the head shape, ZSK to the hex head. With SW8 you know which socket or bit you need: size 8. ZN means the screw is zinc plated, which offers protection against rust under normal use indoors and in a dry environment.

What should you look for when choosing the DIN7504K ZSK SW8 ZN hex head 5.5x19?

First look at the total thickness of the materials you want to join, because the 19 mm screw must grip sufficiently in the base layer. Then check whether zinc plated steel suits the place where the screw will go. In a location with a lot of moisture or outdoor air, a stainless steel version is often the better choice. Also check whether your screwdriver accepts a 8 mm socket.

Ordering and availability

At the moment there are still 2 pieces in stock, but the item can be reordered. If you need a larger quantity or are unsure about the right screw, you can contact Proffix by phone or email. Proffix will obtain products that are not in stock for you and deliver them to your location.

Frequently asked questions

Which socket do I need for this screw?

For wrench size SW8 use a socket or socket bit of 8 mm.

What does 5.5x19 mean for this screw?

The screw has a diameter of 5.5 mm and a length of 19 mm.

Is this screw suitable for outdoor use?

The screw is zinc plated (ZN), which offers protection under normal use. For a damp or outdoor location, stainless steel is usually the better choice.