A quick search on the web produced many companies that can sell you what you look fer.

Option Imports has 3 options fer longer studs all fer $2.55 each:
50mm, 45mm, 35mm...

Here's a set of 16 on eBay fer $44 shipped...although they are about 82mm in length. <img src="/forums/images/graemlins/wink.gif" alt="" />

Have you tried AutoZone, NAPA, or any of the other auto parts places? <img src="/forums/images/graemlins/wink.gif" alt="" />

1998 T-100 Xtra cab SR5 2WD Auto; Roadmaster Active Suspension; Yokohama Geolander HT-S; lowered air dam; full belly pan; 4? diffuser; 11" side skirts; dual transmission coolers; 67% grill blocked; Auto-RX'd; ScanGauge II/Ultra-Gauge