Can i use any brand coil nailes in my nv 45ab2 coil nailer

I advise that when you go to buy nails look at the box.

Decent nail manufacturers, will have the different brands, and models, of nail guns that the particular size, and style of nail, will work in.

GENERALLY any collated nails for a roofing nailer that is from 7/8 to 1-1/4 inch long, and has a .413 inch head, will work.

BUT as a roofer with years of experience, I would like to offer some tips:

A.I have found that if the nails are too cheap for a roofing nailer, (Also applies to other nail guns), you will have problems.

1.Nail jams because two nails are crammed in. The collated wire in-between the nails is too stiff.

2.Nail quality of holding the size, and shape are poor.
Flashing around the nail head, due to the galvanized coating applied to the nail. Length of nail tip is extended beyond what is proper, due to the galvanized coating applied to nail. Poor finish on nail due to poor quality control.

Doesn't seem like a pertinent issue, until you are 3 stories up shooting on the starter strip! Temper seems to flare, when you have to go back down the ladder/scaffold, and obtain better quality nails!

B.Also recommend you keep the gun well oiled. Hold the air connection vertically, (3/8 NPT Male plug), and apply 6 drops of pneumatic oil before you begin. Keep the trigger depressed as you drop the oil in. (Air DISCONNECTED from gun, of course!)

A nail gun will jam if it isn't properly oiled before using. Occasional oiling while doing a big job is a requirement also.
I don't depend on an oiler in the air compressor line. I add oil before I begin. (I don't use oilers anyway. I add manually. Seems to work better through the years. I keep a small bottle of pneumatic oil in my tool pouch)

Oil may leak out onto your hand as you use the gun. Just part of being a roofer. Wear gloves.

C.Use the proper air pressure. If needed, buy and use an inline air regulator. This gun requires 70 to 120 pounds per square inch, (PSI), to operate properly. Look in your manual. (I would recommend 90)

D.As you start the job the temperature will vary during the day. Shingles may be hard in the morning, and soft in midday. Adjust the depth of the nail as you work. (Adjuster on front) Keep a 16 ounce claw hammer handy, to drive in that occasional nail that sticks up, in your tool belt.

Have a caulking gun with clear caulk handy. If you have to pull a bent nail, the hole needs to be filled. (Also sometimes you hit a nail for the roof sheeting. You have to pull the roof nail, fill the hole, move over)

PDF User Manual for the Hitachi NV45AB2 Roofing Nailer, from Hitachi Koki,

http://www.hitachipowertools.com/product/files/pneumatics/roofing_nailers/NV45AB2_OM.pdf

(May take up to 30 seconds to download. You may not see the first page for up to 10 to 15 seconds)

Yes. Roofing nailers all use about the same size and spacing on coil nails. You will find that Harbor Freight is about 1/2 the price of Home Depot or Lowes for those nails.
-Jim