Square head bolt - correct term

[Strima]

here you go. square heads. :

German Army sparkies???

 

[Pete999]

Roofing Bolt

AKA a bolt with a square shank, ie a square shancked bolt

 

[Pete999]

Roofing Bolt

AKA a bolt with a square shank, ie a square shancked bolt

AKA coach head bolt

AKA who cares?

 

[Pete999]

Roofing Bolt

AKA a bolt with a square shank, ie a square shancked bolt

AKA coach head bolt

AKA who cares?

 

[telectrix]

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.

 

[Pete999]

Oh here we go.

 

[telectrix]

Oh here we go.

.

 

[Pete999]

.

You just had to, didn't you?

 

[telectrix]

almost went for the security screws, the ones that will only turn clockwise in but cam out if an attempt is made to remove,

 

[pirate]

Haha Tel!
my favourite screws, those!

Many deacades ago the square socket screws were quite common in boatyards...those producing bespoke yachts, I mean.
Had to make sure the "slots" were tightened up just right, so they were "all square"!
Naturally, the modern square drivers are not a perfect fit...

 

[rapparee]

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.

Every Spark and plumber in Ireland uses these.

They really are wonderful compared to pozi drive.

 

[pirate]

are they like wall-dogs? or do they need plugs?

 

[rapparee]

are they like wall-dogs? or do they need plugs?

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.

Brilliant for screwing into ceilings etc.

They're colloquially known as screwlux

 

[pirate]

Brilliant for screwing into ceilings etc.

That'll do me then!

 

[pirate]

Are they better than torx?