CUTLASS Rear seat belt bolts size

[nycutlass]

1983 cutlass , would anyone know what size bolts and thread pitch are the rear seat belts bolts?

 

[Rocknrod]

They are 7/16"-20 threads for seat belts. However they are shoulder bolts. 60's model used 1-1/4" length for the rear, I doubt much changed. But that length is misleading as I said they are shouldered for the metal part to ride on. For example - https://www.ebay.com/itm/1751261980...d=link&campid=5335822911&toolid=20001&mkevt=1
Some aftermarket places sell em without the shoulder so . . . https://www.jegs.com/i/JEGS+Perform...28yvWz9_bWl6TSMtzc-pc-q3dxP_bNTSnWHl28UB2JsEw
And I have used the same setup as the last ones.

 

[ELCAM]

Looks like it is part number 20229360 M12 X 1.75 - 36mm long.

 

[nycutlass]

thank you, i already got them. i appreciate you taking the time to look for it

 

[Rocknrod]

Hmmm, my obvious newness to this body style shows. Thank goodness I have a metric crescent wrench.

 

[Built6spdMCSS]

Yup definietely Metric, big shoulder Torx bolt. I keep spares in my bolt bucket, GM hasn't changed these since the early 1980's.