Seat Bolt size?

[usnavy89]

I have a 90 c1500 and the guy I bought it from just used self tapping screws with some horribly worn out bucket seats. I now have a replacement bench seat to install but it didn't come with any bolts. I can go to a salvage probably and find some, but if I cant, does anyone know what size bolts they are? I believe they are m10x1.5x16 but not sure. I know the head size is 15mm if I remember correctly.

 

[east302]

Closest thing I could find shows them as grade 9.8, m10x1.5x38 with a washer. GM part 15013870, Google the number and you’ll see photos.

I hope this helps. It’s the same bolt used on my 98.

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Same size and part number for split bench...

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[chevyrider838]

Need one of these grade 9.8, m10x1.5x38 seat bolts replaced with one that's a little longer length. Have any of you guys ever used a bolt from Lowe's to replace one of these? If so, what did you pick up?

 

[Erik the Awful]

I haven't, but Ace Hardware always has a better bolt selection than Lowes or Home Depot.