Source for Cap Head Caliper bolts

PostPost by: Evante » Thu Dec 27, 2018 3:05 pm

Hi all,

In a previous post I asked about plating calipers. I was advised to use hardened cap head bolts to secure the two halves of the caliper together rather than using the original bolts. I have been unable to source these bolts with the proper shank length. I can source ones that have threads the entire length of the shaft but then the bolt would not be as strong for the shearing force of the caliper halves.

Does anyone know where I can source the proper hardened cap head bolts?

Thanks,

Jay S.
Jay S.
1972 Federal Sprint, Colorado Orange/White
2005 Elise, sold
1988 Evante 140TC, sold
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PostPost by: Craven » Thu Dec 27, 2018 5:59 pm

These are just about as good as they come, anything here.
https://www.fastenerdata.co.uk/pdf/Unbrakot.pdf
Craven
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PostPost by: Evante » Thu Dec 27, 2018 8:26 pm

Great resource. Thank you!

Jay S.
Jay S.
1972 Federal Sprint, Colorado Orange/White
2005 Elise, sold
1988 Evante 140TC, sold
Evante
Second Gear
Second Gear
 
Posts: 174
Joined: 01 Jun 2004

PostPost by: Elan45 » Fri Dec 28, 2018 4:22 am

I have bought socket head cap screws which were longer than needed but with the un-threaded shank closer to the length desired, then cut off the excess threaded portion. A good example are the 10-32 screws on the shift linkage on my Lotus 20/22, but I will be putting my zinc plated calipers back together w/ their original bolts, also plated at the same time.

Roger
'67 Elan S3 SS DHC
'67 Elan FHC pre-airflow
'67 Elan S3 SE upgrade to 26R by Original owner
'58 Eleven S2 (ex-works)
'62 20/22 FJ (ex-Yamura)
'70 Elan +2S RHD
'61 20 FJ project
'76 Modus M1 F3
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PostPost by: Evante » Fri Dec 28, 2018 3:08 pm

Roger,

Like you, I decided to use the old screws after I cleaned them up. They should work just fine.

Thanks for your response.

Jay S.
Jay S.
1972 Federal Sprint, Colorado Orange/White
2005 Elise, sold
1988 Evante 140TC, sold
Evante
Second Gear
Second Gear
 
Posts: 174
Joined: 01 Jun 2004

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