A while back there was a lengthy thread about someone who used lap links as bucket hooks on a small tractor (the resulting conversation brought all the concerned engineers out of the woodwork).
In that same thread someone asserted that for their stated use lap links had to be welded.
Since I stumbled upon lap links in the farm supply store the other day I picked one up and checked.
Here is the back of a lap link card that details use (a scan of the card back is attached):
"Lap links are primarily used for temporary repair of low carbon steel chain and for joining attachments. A hammer or vise is required for assembly. Lap links must be completely closed to perform at their rated capacity."
Nowhere does it mention the need for welding, and in this litigious society I would venture that if welding were needed, it would most certainly be mentioned.
In that same thread someone asserted that for their stated use lap links had to be welded.
Since I stumbled upon lap links in the farm supply store the other day I picked one up and checked.
Here is the back of a lap link card that details use (a scan of the card back is attached):
"Lap links are primarily used for temporary repair of low carbon steel chain and for joining attachments. A hammer or vise is required for assembly. Lap links must be completely closed to perform at their rated capacity."
Nowhere does it mention the need for welding, and in this litigious society I would venture that if welding were needed, it would most certainly be mentioned.
