Can I first ask what you are fastening to the wall? It’s just that plastic wall plugs of the size you’d need for a screw that size are not in common use. Sure you can buy ‘sets’ of big screws that come with a large plastic plug (sink/washbasin screws to name one) but usually if you’re hanging something heavy on a masonry wall you’d use a ‘rawlbolt’ style expanding bolt; either a hex head and washer or a nut and washer.

The shape of the countersunk head prevents the screw being removed once it's in place. Self-tapping screw Position the item to be fixed over the hole and put the screw through it and into the plug, twisting the screw a tiny bit by hand till it bites.Then you’ll be able to drive the screw deeper into the 120mm wood, you might even get the head a good inch into it. This will give you enough screw in the wall and still a good hold on the wood. You should only use a wall plug when attempting to add weight to a wall or ceiling that you feel will not support an object.

Steel nails come in all shapes and sizes. Outdoors, always use zinc-plated galvanised nails - they help to delay rusting. Clout nail Also known as “anchors” or “rawlplugs”, a wall plug is an insert that allows the user to put screws into materials that are too brittle, porous, or unstable to hold the weight of an object. Cleaning the holes out can sometimes be important but you may not have electricity available or wish to drag a vacuum cleaner around. Note: If you are unable to dislodge the rawl plug from the wall, you can insert a screw into it, tighten it and then look to pull both the rawl plug and screw out with the claw end of your hammer.Understanding the nuances of even the most basic tasks, such as how to remove rawl plugs from a wall, is part of mastering the art of DIY home improvement. Lastly, you could switch fasteners and try a frame fixing, then the plug and screw are the same length and inserted as one fixing. might help. Once level, use a screw or other thin pointed object to mark through the fixing holes on the hanging rail to show where you need to drill your fixing holes. Home Improvement Specialist Expert Interview. 17 February 2022. The weight of the object you wish to hang will determine the screw gauge you'll need, and the screw gauge will determine the correct wall plug.