Old post, but this looks like an appropriate place to augment the existing discussion rather than start afresh. I've misplaced the nuts (which I think should be the stamped style) that hold the stainless steel moldings on the bucket seat backs found on interior decor optioned cars. Plus I have no pictures from when I disassembled. I did look though... I don't see a part number in Jim's fastener spreadsheet. It was not in the deluxe interior AMK kit. The assembly manual shows the molding attached to the panel, so nothing there. The MPC (picture attached) shows them taken apart in the illustration, but the nuts are not shown. The MPC parts listing says that the fasteners are included with the molding ("includes attaching parts"). Next step will be to measure the stud OD, and measure the witness lines imprinted on the plastic. If I recall correctly they were really really small from an overall OD perspective due to clearances. I would like to get the part numbers into Jim's spreadsheet for future reference, and more important is to come up with these so I can get the seats in. TIA
Update - I looked in the spare parts bin and came up with a lower side piece with trim and fasteners. The stud is about 0.137" OD which matches up (close enough for me) to a nominal #6 size. The hole in the nut, which is difficult due to distortion (stamped metal) was a bit bigger than a #31 drill bit (0.120") but smaller than a 1/8" bit (0.125"). The nut driver size is 11/32". According to the 1969 standard and utility parts catalog, the smallest listed for a #8-32, and I need a #6. So I went back to the 579 page Ford engineering fastener manual and found something that would work, but has one issue. Part number 45228 is listed as a #6-32 (good), with a 0.312 nominal width (also good), but a 0.150 nominal thickness. The thickness is, from a percentage perspective, much more than the 0.105 that I measured on the actual nut. However, in the big scheme of things will work just fine. Based on a quick internet search bearing no fruit, I'll probably tear the shop apart looking for these.