Where to buy 31G 8mm luer lock needles?

[sunny16]

@Randy I saw one of your YouTube videos where you were combining peptides from three different vials into one syringe. After you combined them into one syringe, you put a 31g 8mm needle on the syringe. I have looked all over Amazon and the internet and I cannot find 31g needles that aren't pen needles. I was able to find a couple of listings for 32g needles on Amazon but they were 4mm. Any suggestions?

[Randy]

amazon is where i find those

[WilsonM]

I found them on amazon too

[sunny16]

Thanks. I looked again on Amazon but still could only find 30g or 32g luer-lock needles. The only 31g I could find were the needle/syringe combos. Strange. Oh well, I decided to buy the 32g 4mm.