Square head bolt - correct term

[farmer]

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

 

[Leesparkykent]

Carriage bolt

 

[Pete999]

View 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

Roofing Bolt

 

[Wilko]

AKA coach head bolt

 

[telectrix]

up north we call them coach bolts. carriages are for rich southern plebs..

 

[Andy78]

Aye, coach bolts.

 

[westward10]

Carriage bolt as a coach bolt is more like a wood screw which carves it's own thread.

 

[farmer]

Carriage bolt

AKA coach head bolt

Google agrees with both of you lads but it was a different term I was told. It was only today that I was told too!

Thanks

Roofing Bolt

I would've called this a roofing/gutter bolt even though I've never seen one on a roof ??
Thanks

 

[Andy78]

Carriage bolt as a coach bolt is more like a wood screw which carves it's own thread.

That's a coach screw surely ?

 

[westward10]

That's a coach screw surely ?

Mmm, seems like the OP has started something.

 

[Risteard]

I vote for coach bolt also.

 

[Rpa07]

Isn’t a coach a motorised carriage - I’ll go for carriage bolt. What do we win?
@egg67 will be on in a minute with the answer ‘A1’ - ignore him ok?

 

[Strima]

Coach bolt. Coach screws have hex heads and cuts their own way through wood.

 

[Rpa07]

Apparently they’re all the same so the universe is keeping us from sleep all for this twisted riddle - I’m not falling for it any longer!
Night night carriage bolt users!

 

[Baddegg]

It’s a coach bolt,when you join 2 pieces of timber with a dog tooth washer in the middle of the timbers and a square plate washer with nut on the other end the square lug pulls into the timber and prevents the bolt from turning........or so I heard anyway