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Crown wheel bolts


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Hey all,

has anyone seen this type of Rover CW bolt? Trying to determine if it’s factory genuine? Circa 1998

 

B18FD50E-3B92-45EB-9ED0-203B91B514A5.thumb.jpeg.daa26c7314d202928641740f3c3e8aa3.jpeg
 

I know these next two are definitely factory genuine. The early and late types

 

CFB34D20-50D9-4861-9C00-A8FCF9E467C7.thumb.jpeg.8bea94ded364c70cf525ce7c4503d042.jpegEBC0F360-3151-4F3D-8A5F-02A2656431D5.thumb.jpeg.73dd1d02d92a907ce03c43803cdd0e94.jpeg

 

The later are shorter than the earlier type and shorter than the ones I’m trying to I.D. 
 

 

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47 minutes ago, Hybrid_From_Hell said:

FTC5150 - used in P38 and late puma as 12.9 Grade flanged head bolt - single use !!!

A quick google of that part number shows both flange type in my photos above. The later type being much more common. The earlier is definitely a better fit/finish and longer (more correct length as per the early non flange bolt) 

Those late type look pretty poor in hand.

here is the length difference 

CD1B37DF-C44A-4708-9EE7-8A22CCE1CAF2.thumb.jpeg.926f425e728158976e97e33c80b74ee3.jpeg

 

and you can sort of see the quality difference ( more visible in hand)

Why do you say one use only?

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