A locking key is a hollow steel sleeve with a pattern cut into one end and a drive on the other. It is the weakest part of the whole wheel assembly. Run an air gun onto it, or leave the nut to seize through four winters, and the key does not slip. It twists, then it snaps, usually right where the pattern meets the body. Half of it stays down in the recess and the other half comes out in the socket.
At that point you have a wheel with a steel plug sitting in the middle of the nut and nothing to grip. A screwdriver will not shift the stub, because by then it is a press fit, and no socket will reach over the nut because the nut is sunk into the alloy. We carry picks and small pullers to clear the broken piece, then extraction sockets that bite onto the outside of the nut body and wind it out backwards. Nobody is usually stranded when this happens. The wheel simply has to come off for something else, and it will not.
It usually surfaces the night before something. A tyre booked in, a long drive planned, an MOT in the morning, and a wheel that will not come off because the key has gone walkabout. Tight in Osidge, easy in Winchmore Hill: neither stops the job. Level in Oakwood, sloping in Cockfosters: we set the car straight first. A N14 address in Grange Park and one in Osidge are the same round.
Locking wheel nut removal in Southgate is part of our wider mobile tyre fitting cover. For locking wheel nut removal in Southgate, call 07717 389637 or ask us for a quote.
Most of these calls in N14 come from driveways, not the roadside. The car is perfectly drivable and the owner has just found out the hard way that a wheel will not come off it. That suits everyone. We would far rather deal with a snapped key on a Tuesday afternoon outside the house than at the side of Bramley Road in the rain.
Winter wheels going back on at a house near Grange Park, and the key sheared on the third nut. We picked the stub out, took all four locking nuts off and left plain ones fitted.
A flat on a quiet avenue, the spare out of the boot and the jack already under the car, and the wheel still would not move because the key had broken weeks earlier and been forgotten about.
Nothing urgent about this one. The key had snapped months before and the car had simply carried on. We came out on a Sunday, checked every stud for damage on the way past and put a fresh locking set on.
The socket grips the outside of the nut, not the wheel, so the damage stays on the part we are throwing away. Where a nut sits deep in a recess we protect the lip around it before anything turns.
That is the normal case rather than the awkward one. The broken piece comes out with picks and a small puller first, because nothing else will fit over the nut until it does, and only then do we start on the nut itself.
Someone has to hand over the keys and settle up at the car, but nobody expects you to watch. Most people carry on with whatever they were doing and come out when we knock.
Yes, if you want them. We fit a fresh set and write the key number down for you, so a lost key becomes a phone call to order another rather than a repeat of this. Plenty of people choose plain nuts instead.
If the key is already chewed, or a nut turns hard, then yes. Dealing with it on a dry afternoon outside the house costs you an appointment. Dealing with it when you have a flat costs you the evening.
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