I have a bag of 10 heavy duty Zinc plated, 5/16 x 18 TPI standard course thread T-Nuts up for auction today. These are some heavy duty T-Nuts as the length is right at 3/4" long with right at 5/8" of thread engagement, the base is 7/8" in diameter and there are 4 of the 3/8" long spike sticking up from the base. One of the big chain stores I went to was charging $1.18 for a pack of 2 T-nuts and they were the little short ones with 3 engagement spikes.
NAPA 4003 Fuel Filter Thread Trap This thread adapter has 9/16-24 ID Threads and 3/4 NPT OD Threads This will allow you to use a NAPA 4003 fuel filter This adapter is made of high grade steel not cast steel like some of the other ones I have seen listed on eBay. National Pi
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