Crock Pot

We have a 1990 short bed. We removed the bed to replace the fuel pumps today. A couple of the bolts were in bad shape. It takes 6 of them and there are 3 different styles. All have a 1/2" coarse thread. The foremost and rearmost have an oval shaped shoulder to lock into the bed, but are different lengths. The ones in the middle have a square shoulder like a carriage bolt, but the square section is about an inch long and close to 5/8". The dealer lists them at over $20 each, a limited supply, and have to be ordered. The part number on them at LMC doesn't distinguish between the different types, and a kit contains 8 bolts for a long bed. I doubt it would have exactly what we need.
Are there other aftermarket sources for these that anyone has found?

Marc D

Try Dennis Carpenter.com, or NPD.com (National Parts Depot), or Parts Train.com