All vehicles have many Allen screws on them. The only sensible and economical thing to do is buy 2 sets of Allen keys, usually 1/32 up to 3/8 in SAE and 1-10mm in metric. They only cost about $ 12 per set and will save you a lot of hassle if working regularly on cars.
I believe it's 17 mm wrench, not Allen key.
A 3/8 Allen on the Cavalier from '94 to '03
I don't know what size but on an 01 S60 you need an Allen wrench.
Most likely for this type of van is a 3/8 Allen wrench.
I don't know that particular vehicle, but I must say it doesn't seem like a huge imposition to get under with 3-4 different wrenches and try them for size. I change MANY front pads and usually follow that pattern.
It takes a 7mm Allen key.
It takes a 7mm allen wrench.
it takes a 7mm Allen wrench to remove calipers on 2003 ford focus.
it's a 3/8 wrench for both 2003 and 2004 caliper.
what tools do i use to change the front brakes in my 2003 Pontiac grand prix
I believe a 3/8 Allen is the right tool.
15mm six point socket or 15mm wrench