Strange hardware, what is it?

[california]

I have 6 of these, they are 2" by 1/2 inch , And I have absolutely no idea what they are for? They appear to be new and unused, Does anybody have any idea?

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[Bondo]

Ayuh,.... Bolts for attachin' attachments that rotate on the bolts,....

 

[rlitman]

Ayuh,.... Bolts for attachin' attachments that rotate on the bolts,....

No. If that were the case, it wouldn't have a castellated nut. Nope, those are meant to be tightened.

I think it looks like it's for a heim joint.

 

[MarlynOC]

Steering parts for small cars, A-frames connections folcrum pin for control arm links. Do you have the rubber grommets that fin in the arms?

 

[larry_g]

No. If that were the case, it wouldn't have a castellated nut. Nope, those are meant to be tightened.

I think it looks like it's for a heim joint.

I don't believe those are to be tightened enough to stretch the fastener and hold the torque on the nut. Think more like two lightweight tubes being bolted together where the tightening would crush the tube. Just tighten to snug and install the cotter. The shoulder on the bolt holds the shear forces.

lg
no neat sig line

 

[rlitman]

I don't believe those are to be tightened enough to stretch the fastener and hold the torque on the nut. Think more like two lightweight tubes being bolted together where the tightening would crush the tube. Just tighten to snug and install the cotter. The shoulder on the bolt holds the shear forces.

lg
no neat sig line

Exactly. If this fits in a heim joint, the spherical bearing would do the rotating. You just need enough tension on the bolt to keep it from spinning inside the tube it fits in. Less than that, and it might start to rotate, which would cause it to wear.

 

[cvairwerks]

Clevis pins... designed for a joint in shear only, and one that has the possibility of some rotation.

Heim joints are designed for both shear and compression. For the joint to work correctly, the inner ball section must be tightly clamped to the other half of the joint. The ball section should not ever move in relation to the part it is bolted to. The outer body is what needs to move.

 

[guy48065]

They look too long to be for heims--and the wide head would restrict articulation even more than a regular hex head, and lots more than a socket head.

 

[california]

Steering parts for small cars, A-frames connections folcrum pin for control arm links. Do you have the rubber grommets that fin in the arms?

Nope, what I got is what you can see. They very well could be steering horse suspension parts from back in the day They've probably been in this storage bin for 40+ years, probably from one of my father's race cars

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[BDT/NWMN]

Could be used to hold a wood or rubberized panel on a conveyor, manure spreader deck, or similar place, or maybe for fastening the flaps on a snowplow

 

[Michael_in_DE]

We use them for high-vibration prone areas and applications of crucial safety, which is why some others above said 'steering components'.

 

[ddawg16]

The head is too small for any kind of torque.

I'm betting trailer hardware.

 

[driftpin]

If they're stainless, I think it could be for a sailboat for some-sort of marine rigging. Maybe a bimini top, or a safety stanchion on the top of the gunnel of a sailboat? Something like that.