Thread Rating:
  • 0 Vote(s) - 0 Average
  • 1
  • 2
  • 3
  • 4
  • 5

Philco 38-116 tube shield base replacement-what type of rivets do I need?
#2

Try, to measure an existing rivet or drill another out carefully and measure the hole diameter and the required thickness the new rivet/socket is supposed to clinch.

The rivet is semi-hollow so clinch length is from under the bottom of the head to the end. The diameter is rather specific too. Then, search eBay for a vendor. they offer separate listings for each size. if the size is a bit long, plan on using plated washers, these help on wafer sockets to spread the forces of clinching.

https://en.wikipedia.org/wiki/Rivet#Types

https://www.ebay.com/itm/332312242437

That ^ may not be your correct size, it is for my application.

For that size of rivet a setting tool is essential or the mushroom will not form (roll) correctly. I also found these tools online:

https://www.ebay.com/itm/314860296137

That is the tool I purchased for the rivet I got.

The head does require a backup tool, a steel backup block, a brass or aluminum rod will work too. The surface of the backup tool/block must be smooth as any scores or imperfections will be telegraphed onto the head of the rivet, permanently.

If there is a lot of mass for backup it can be hand held, if not, a rod for example, will have to be clamped. Rather awkward for a chassis may need a helper to hold chassis steady. The clinching (setting) tool is not cheap, I paid $55 to set just four rivets but the work looks original. The tool "rests" in my special tool drawer Icon_rolleyes

I did not want to try to set the rivet with a pointed punch or mash it with a hammer Icon_eek

If your not familiar with setting rivets, set some scrap up and practice. Splitting a wafer socket can happen if skill is not there.

I suppose, the setting process could be done in a hand arbor press or a larger (strong) drill press.

You will need a LARGER, ball-peen or smaller sledge with short handle to set the rivet, usually a couple of well placed whacks...

https://en.wikipedia.org/wiki/Ball-peen_hammer

Wear heavy gloves, so if you misfire, the damage is less... Ouch!

Please post results with pix for us all to see.

Best regards

Chas

Pliny the younger
“nihil novum nihil varium nihil quod non semel spectasse sufficiat”


Messages In This Thread



Users browsing this thread: 1 Guest(s)