STAINLESS STEEL POZI COUNTERSUNK HAMMERFIX SCREWS WITH NYLON PLUG

Pozi Countersunk Hammerfix Screws with Nylon Plug — Where the Multifix screw cuts its own thread directly into masonry, the Hammerfix system takes the more traditional route: a nylon plug goes into a pre-drilled hole first, tapped home with a hammer, and then expands against the sides of the hole as the screw is driven into it, locking the whole assembly in place mechanically rather than relying on a cut thread in the masonry itself. That makes it well suited to lighter-duty fixing into masonry, brick, or plaster - skirting boards, architrave, trims, conduit clips, light fixtures, and similar fast, low-load fixing jobs around a building - rather than the heavier structural connections a direct-thread masonry screw is built for. It's also a more forgiving system on softer, more variable, or slightly damaged masonry, since the plug's mechanical expansion doesn't depend on cutting a clean, consistent thread in the substrate the way the Multifix system does. A pre-drilled pilot hole matched to the plug diameter - not the screw diameter - is required before the plug and screw assembly goes in, and getting that hole size right matters as much here as with any masonry fixing, since an oversized hole gives the plug nothing solid to expand against. The countersunk head and Pozi drive on this screw are a straightforward, general-purpose combination rather than anything specialised, since the fixing method is doing the real work of locking the assembly into the wall rather than the screw head or drive playing any particular structural role. Choosing between this and the Multifix masonry screw is mostly a question of load and substrate: reach for the Hammerfix wherever the job is light-duty trim or fixture work and speed matters, and step up to a direct thread-cutting screw or a more substantial mechanical anchor wherever the fixing needs to carry real structural or cladding-support load into solid masonry or concrete.

FAQs
How does a Hammerfix work?
The nylon plug is inserted into a pre-drilled hole and tapped home with a hammer; driving the screw further into the plug expands it against the sides of the hole, locking the fixing in place.

How does this differ from the Bi-Metal Multifix Masonry Screw?
The Multifix screw cuts its own thread directly into masonry with no plug and suits heavier, more structural fixings; the Hammerfix relies on plug expansion and is intended for lighter-duty applications, and tends to be more forgiving on soft or variable masonry.

Do Hammerfix screws need a pre-drilled hole?
Yes. A pilot hole matched to the plug diameter - not the screw diameter - is required before the plug and screw assembly is hammered in.