from my VW Beetle Haynes manual in the section on engine removal.
Are there official 'cheese headed bolts' or was one of their writers having a bad day?
Cheese headed usually means a round head with a slot for a flat screwdriver (I think).
Does it not just mean they are made of a soft material, so you should use a good quality socket to remove them?
Well, my reasoning was ok.. but [url= http://myword.info/sendword.php?ch_head_1-a ]defined here[/url]
Ah, I would have called it a set screw.
Cheese headed bolts are also what Shimano supply with their rotors.
Set screws generally are fully threaded, right up including the head if it's a grub screw (designed to sink into the item and keep going).
Screws mate with an internal thread or make their own thread, bolts have a nut on the end.
Cheese headed - head looks like a full cheese - cyl with a slot
Different from socket head - an allen bolt/screw.
grubscrew doesn't have a head?
Allen headed bolts are the new cheeseheads.
And your manual is perfectly correct.
HTH
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grubscrew doesn't have a head?
Badly articulated, that's what I meant by it being threaded "including the head". Woudlnt be much use having a threaded head if it wasnt the same diameter as the shaft, but it has to have a head or else it can't be driven - so to me the head is still present, its just the same diam as the shank 🙂
And actually everyone seems to be replacing allen headed bolts with damn Torx bolts. They are better but do confuse if you cant see the screw/bolt you're working on.