Need help - Original seat belt anchoring hardware?

[inline6]

I am trying to determine what hardware was originally used at each anchor point for the seat belts in my 6/71 car.  I think the lap bolts just used a bolt, a serrated washer, and a paper washer as shown in these two pictures:

  

 

I happen to have a couple of sets of "early" seat belts (one set is 10/70), and this hardware was at the shoulder belt anchor. 

From left to right, longer than usual bolt, thin (relatively) plastic washer with raised shoulder, thick (relative to the thin one) plastic washer with raised shoulder, black metal washer, black metal washer, red paper washer.  This hardware seems to match perfectly the parts schematic:



The belt anchor goes in between the two plastic washers like so:



The shoulders butt up against each other, allowing the anchor to rotate easily even the bolt is torqued down tight in the car.

The anchor for the 6/71 shoulder belt is a different part/design than the early belt.  This hardware will not fit the 1971 shoulder belt, as the 1971 anchor is much smaller.  It does not accommodate the large diameter of the plastic washers.  

Does anyone with a 2/71 through 1973 car have original hardware in their shoulder bolt location?  Could you share details of what is there?

 

Edited December 15, 2024 by inline6

[Terrapin Z]

My 73 has the same bolt you show as the lower attachment. A shorter bolt and inverted star washer. There might have been a paper washer but not that I found. I think there is a plastic washer glued to the inside of the quarter window inner cover that keeps the trim from cracking as you tighten. I seem to remember those washers in other trim I have pulled off. 

[CanTechZ]

My Nissan parts book shows that the same seat belt assemblies were used until 12/71.

 

 

Do your seat belts have a push button to release, or a lift latch similar to that used on aircraft. The early style is the lift latch type, which I believe your car should have. If I'm mistaken, hopefully others will chime in.

The clip in your hand, in your last picture, is for the lower end of the shoulder belt where it would attach to the lap belt as in this picture from my 1970 with the early style.

 

Here are a few pictures from my 7/70 showing how the upper end of the shoulder belt was fastened. It did swivel, but with some effort, not freely, when the bolt is tight. I hope they might help.

 

Notice the step on two of the plastic washers, they are what allows the swivel to happen,

 

[inline6]

Thanks for the info and pics.  I found it odd that the parts book doesn't have the correct info for seat belts for my car.  Here are pictures of my belts before I sent them off to have them redone:

    

 

 

The original tags with lot numbers and date of manufacture were on two of the 6 belts.  The buckle is the push button type.  And the tab portion on the lap belt works with the "later" style shoulder belts.