Discuss Square head bolt - correct term in the Electricians' Talk area at ElectriciansForums.net
Roofing BoltView attachment 44247
Hi lads, could anyone tell me the correct term for this type of bolt please?
I'm fairly sure it starts with the letter "B".
Farmer
That's a coach screw surely ?Carriage bolt as a coach bolt is more like a wood screw which carves it's own thread.
Mmm, seems like the OP has started something.That's a coach screw surely ?
Usually roofing bolts don't have a square shank, but rather have slots on the dome head so a tool can be used to stop them turning rather than relying on the square shank pulling into the timber. This said I have heard, the terms coach, carriage, roofing, dome head... for all sorts of similar bolts and screws.I thought they were called M6 roofing bolts.
So are the bolts Bosch?here you go. square heads. :
German Army sparkies???here you go. square heads. :
AKA a bolt with a square shank, ie a square shancked boltRoofing Bolt
AKA a bolt with a square shank, ie a square shancked boltRoofing Bolt
AKA who cares?AKA coach head bolt
AKA a bolt with a square shank, ie a square shancked boltRoofing Bolt
AKA who cares?AKA coach head bolt
.Oh here we go.
You just had to, didn't you?
Every Spark and plumber in Ireland uses these.on the subject of screws. i just ordered some "robertson"square pan heads 8s x 1 1/2 inch, just to upset future young sparkys after i'm dead and buried.
No, they still need wall plugs, but when you place a screw on the end of your screwdriver, you can literally do a somersault with it and it won't fall off.are they like wall-dogs? or do they need plugs?
I've only ever used torx on white goods but I'd definitely say they're better.Just asking, cos when my local Homebase closed I bought loads of torx security bolts for pennies, and have used them on garage doors and outhouses, for fixing bolts and hasps, and they come with the driver bit...so far all seems good.
And have done for at least the last 20 years.Every Spark and plumber in Ireland uses these.
They really are wonderful compared to pozi drive.
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