Looking for Heavier Duty 'T50' (3/8 flat crown) Staples

[rossn]

I have a Milwaukee M12 3/8 Crown Stapler (2447-20), and it has been great. According to the specs, it runs a 3/8" flat crown T50 staple, and I have had no issues with any of the Arrow T50 stapler.

Arrow seems to label these as 18 gauge staples, though they are awful thin, and it has me wondering if it is a true 18 gauge staple (this is the only stapler I own).

Is anyone making a heavier duty staple that would work in this gun? Is a true 18 gauge staple thicker than an Arrow T50 staple? I see Senco makes some.

 

[Ton ton]

I don't know. Hopefully someone will come along with a good answer.

 

[RTM]

Pulling some old T50 from the archive storage, I get 0.021-0.023" thick wire by 0.051 , 0.415 outside the U

 

[LeeG]

The staples I got from McMaster were listed as 16ga