Segmented screws?

Breakaway or break-away screws I think they are called .

=================================== Snap-off screws:

Snapoff screws. But your perfectly reasonable assumption about them is untrue... see Screws on

You might have quoted the direct link:-)

Thanks a bunch matey.

diameter (4mm) ones can be snapped easily - I've done it often. The SF site also states that you can.

It appears there are two types of snap off screw then, should we add this to the Wiki?

Is that "easily" as in Haynes manuals?

"Easily - apply wrench, turn gently with both hands and feet. Repair knuckles. Beat with hammer, apply gentle heat from an oxy acetylene cutting torch, apply salve to hands and face. Use 12" angle grinder on remaining stub". Sell vehicle.

Once we've got this all settled, sure. I just measured the cylinder lock screws @ 4.2mm od, so I guess the difference is just down to manufacturing quality. Are these actually the same diameter and thread, just different length? Someone got both types to compare?

NT

The SF cupboard ones are described as 4mm. Perhaps its the depth of the segments?

Maybe. I wondered if they were less soft - the cylinder lock ones seem to be just mild steel, very soft.

OK, just compared the screwfix pic with some soft cylinder jobs, and the depth of the segments is the same, so I guess it must just be the metal treatment. Presumably the bendy ones are a cost saving measure.

Will update the wiki some time after Monday.

cheers, NT

BTW you don't really 'snap' these screws. Its a case of gripping either side of a segment with two pairs of pliers an bending them up & down a few times. More wiggle than snap :-)

Highly likely they are softer, not under much stress just holding a cupboard knob on.

Maybe thats where I went wrong. Still I don't suppose I'll find out any time soon. Hopefully.

NT

I could pop a couple in the post if it helps?