What are these rivets called ?

[Paul H]

Bonnet clamp on my Vitesse keeps sticking . The “Claw” is bent and has too much lateral movement so it jambs  on the roller edge . Need to remove rivet to investigate 

Paul 

[poppyman]

I think "nut and bolt" would be easiest Paul, a pal with a GT6 did that and its been ok.

Tony.

[Paul H]

1 hour ago, poppyman said:

I think "nut and bolt" would be easiest Paul, a pal with a GT6 did that and its been ok.

Tony.

Thanks Tony , just drilled one out and nut and bolt will do the job . This one has been smacked at some time and is bent so trying to straighten first 

[RogerH]

Hi Paul,

I believe they are semi-tubualr rivets  Rivets

They are handy for mass productions as easy to install and cheap.

 

Roger

[Paul H]

Removed the rivet and it’s 8mm diameter so needed a M8 to replace . Locking mechanism works now as added a washer in the spring set up to ensure the “back of the hook “ didn’t jamb the roller . 

Paul 

 

[JohnD]

Paul,

A bush and a smaller bolt would allow a less hefty looking fastener, more like the OE, and less worry of wear on the treads if it has a short shank or is a set screw.

Just thinking!

John

[Paul H]

Just now, JohnD said:

Paul,

A bush and a smaller bolt would allow a less hefty looking fastener, more like the OE, and less worry of wear on the treads if it has a short shank or is a set screw.

Just thinking!

John

Agreed , this is a short term fix as haven’t got a suitable replacement 

Paul 

[Pete Lewis]

lve got some !!1

have also  repaired one often the small roller seizes and the hook wears a groove in it 

cant remember what i used but smaller than your M8 hex head 

check the small roller has not worn the back of the hook or the over centre wont latch and it will always pop open  

 

Pete

[Paul H]

19 minutes ago, Pete Lewis said:

lve got some !!1

have also  repaired one often the small roller seizes and the hook wears a groove in it 

cant remember what i used but smaller than your M8 hex head 

check the small roller has not worn the back of the hook or the over centre wont latch and it will always pop open  

 

Pete

Thanks Pete . The small roller is fine now , Initially it was seized 

Paul 

[RogerH]

1 hour ago, Paul H said:

Removed the rivet and it’s 8mm diameter so needed a M8 to replace . Locking mechanism works now as added a washer in the spring set up to ensure the “back of the hook “ didn’t jamb the roller . 

Paul 

 

....or a socket headed Allan bolt.    Allen Bolt

 

Roger

[Paul H]

Tidied up the oversized M8 bolt . I recovered the rivet . Drilled out the rivet so it acts as a bush and would take a M5 bolt . 

Paul