I don’t believe I’m over-stretching when I say that no one else in BMX that has pegless grinds on lock like Chris Silva. Most the credit surely goes to Chris and his borderline obsessive attention to detail, but his signature “Nub Nuts” from Animal surely get some credit, as well. No need for a 17mm, either. Just use a ratchet and you’re good to fire out pegless backwards rails, hangers, and pegs to hard 180’s.
“Chris Silva’s signature “Nub Nuts” are made from Heat Treated Chromoly. They are available in 14mm female and 10mm male (10x1mm TPI)”