Not any specs on that page as to their size, but doesn't look long enough. I have a pretty curved window and once the glass is open all the way, i will need at least a 3/4" stud (on top of at least a 1/4" base) to get out far enough to hold the glass up. I found exactly the part i need at
http://www.mastertoolusa.com/windshield.htm part #413 but they don't sell to the public and their resellers don't seem to have that part!! Im about 1 step away from machining one myself... thanks for the try though!!