Is there a reason?

[Sailorbob8599]

This past Sunday, a member of my family, namely the Admiral consigned the Eye Terminal from the upper Lifeline to King Neptune. I had a few odds & sods in a container aboard & was going to cobble something together using a standard sae nut to hold this temporary fix together. I was surprised to find the terminal end uses a Left Handed thread. Can anyone tell me why this would be?
It seems totally illogical to me, to be using a left hand thread in this particular application. I hope someone can explain the reason for this, because it doesn't make sense to me . . .

[Jim Cate]

Likely designed as part of a rigging screw (turnbuckle) used to tension the lifeline.

Jim

[Sailorbob8599]

Originally Posted by Jim Cate

Likely designed as part of a rigging screw (turnbuckle) used to tension the lifeline.

Jim

In which case, one would believe there has got to be an opposing end with a R.H. thread to make the turnbuckle functional but on checking, I find ALL the lifeline ends are L.H. thread. Am i missing something here? Lifeline terminal ends don't look like parts of standing rigging to me.