Bolt with hole (for R clip) - WTF is it called?

[goto10]

I need a new bolt-with-a-hole for my bike trailer (that an R-Clip can clip to) - one of them has snapped - it's like a clevis pin, but has a threaded end so it can be bolted to the trailer.
My Google-Fu has failed me, I thought I'd find something on eBay but no. Do they have a name? (It doesn't need the pointy end, just a bolt with a hole would be fine)

TIA
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'12 NC700S & '12 CB600F Hornet [Stolen by some dickless twat] Suzuki GT500 shed

[Sister Sledge]

Looks custom by the trailer manufacturer to me?
Can you not simply make one from a bolt? I'd whip you one up in ten minutes if you were nearby.
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CCM 404 DS

[Evil Hans]

Clevis bolt, or threaded clevis pin.
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Triumph Sprint ST 1050. And it's Red.

[Hong Kong Phooey]

File a flat onto an m12(?), drill through, file the threads off.
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'81 CG125, '97 FZS600 : '99 CBR600F4, '09 KTM RC8

[Polarbear]

Easy to make
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Triumph Trophy Launch Edition

[The Shaggy D.A.]

Aye, make one or hand in your man badge
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Chances are quite high you are not in my Monkeysphere, and I don't care about you. Don't take it personally.
Currently : Royal Enfield 350 Meteor
Previously : CB100N > CB250RS > XJ900F > GT550 > GPZ750R/1000RX > AJS M16 > R100RT > Bullet 500 > CB500 > LS650P > Bullet Electra X & YBR125 > Bullet 350 "Superstar" & YBR125 Custom > Royal Enfield Classic 500 Despatch Limited Edition (28 of 200) & CB Two-Fifty Nighthawk > ER5

[WD Forte]

That's what we call a 'sticky uppy holey bolt' in the trade
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bikers smell of wee

[One Ball 1971]