Bonnet and boot stud threads
Posted: Sat Feb 20, 2010 10:20 am
Could someone remind me what type of thread and size the studs are on boot and bonnet hinges please, gracias, John
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Bonnet and boot stud threads
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Re: Bonnet and boot stud threads
Posted: Sat Feb 20, 2010 10:35 am
poss 7/16 af i think off hand
Re: Bonnet and boot stud threads
Posted: Sat Feb 20, 2010 5:38 pm
7/16" AF heads on the bolts - but 1/4" UNF is the thread.
Re: Bonnet and boot stud threads
Posted: Sat Feb 20, 2010 5:40 pm
Re: Bonnet and boot stud threads
Posted: Sat Feb 20, 2010 6:00 pm
There are two stud sizes.
The large stud which holds the hinge to the body has a pitch of 22 TPI = 5/16 UNF with a nut size of 1/2 A/F.
The small studs which attach to the boot and bonnet have a pitch of 28 TPI = 7/32 UNF with a nut size of 7/16 A/F
I think I read the chart correctly
The large stud which holds the hinge to the body has a pitch of 22 TPI = 5/16 UNF with a nut size of 1/2 A/F.
The small studs which attach to the boot and bonnet have a pitch of 28 TPI = 7/32 UNF with a nut size of 7/16 A/F
I think I read the chart correctly
Re: Bonnet and boot stud threads
Posted: Sat Feb 20, 2010 6:05 pm
Pretty sure mine are 1/4" UNF -with 7/16" heads. A bolt of 5/16" thread would normally have a 1/2" AF head! Perhaps early cars were different ?
Re: Bonnet and boot stud threads
Posted: Sat Feb 20, 2010 6:18 pm
The two large studs have got 1/2 A/F nuts
Re: Bonnet and boot stud threads
Posted: Sat Feb 20, 2010 8:29 pm
Hmm - I'm not aware of 'large studs' - will have a look at my spares tomorrow!