off the shelf version of Thule WingBar Evo T-track nuts?

PR3097 Universal T-Bolt kit for mounting roof Boxes to the t-slot in Prorack roof bars $ RRP*

T-slot bolts seem to be standardized across all rack brands, and use standard M6 threading, so it shouldn't matter if you buy Yakima, Thule or

thule slot vervangen Thule 889201 T Track Bolts for Aluminium Aero WingBars

thule t slot T Track Bolt · Free shipping over $129 · 30-day returns · Thule Guarantee · Product Locator by Locally