I think that's the fault of UPS and FedEx, mostly. When I'm not in a hurry, I just specify "USPS First Class", which is only a few dollars for most things. One other trick I learned is that you can add a note in the Special Instructions to "Ship via FedEx". FedEx delivers on Saturdays but UPS doesn't. It seems like I always discover that I need a part on Thurdsay...I love ACS, but ALL of their shipping charges are ridiculous.
Yup, that's the stuff they ship hazmat.
I asked ACS today. Email exchange below.
Me: Is there a hazmat fee for shipping this new brand torque seal product?
ACS : If the item is shipped by ground transport, no haz fee. Air shipments are considered hazardous.
So there shouldn't be any hazmat fee if shipped UPS/FedEx/USPS ground, although I haven't ordered any recently to confirm.
See Q+A tab here: http://www.aircraftspruce.com/catalog/cspages/crosschecktorqueseal.php?clickkey=3836
Go to Home Depot/Lowes, get a sample size of their most brilliant color interior or exterior latex house paint (color - your choice). It's already pretty thick and it dries quickly. Put it in a small paint bottle - like finger nail polish bottle with an applicator, and apply your 'torque seal mark'. You could also use oil based paint, but it will take longer to dry and it's not very thick. I've painted stripes on the asphalt ramp in front of our hanger - for two jets- with interior white latex house paint, and they have been there for five years! They haven't peeled off or faded.
If it chips off your nut, put a little more on at your next condition inspection - after you check the torque. The small paint sample containers at lowes is good for at least a hundred RV's.