https://www.roton.com/products/all-lead-screws-nuts/all-steel-nuts/
Jun 8, 2017 - Roton Products is a manufacturer of lead screws, ball screws, & more. View our round square and hex nuts and shop online for your power transmission needs.
round squarehex nutsacmesteelamp
https://www.conrad.com/en/p/toolcraft-108671-square-nuts-m5-din-557-steel-zinc-galvanized-100-pc-s-108671.html
Top TOOLCRAFT Selection | Order easily now: TOOLCRAFT 108671 Square nuts M5 DIN 557 Steel zinc galvanized 100 pc(s) | Fast delivery | Reasonable prices
square nutsbuytoolcraftdinsteel
https://www.conrad.com/en/p/toolcraft-119089-square-nuts-m12-din-928-steel-500-pc-s-119089.html
Top TOOLCRAFT Selection | Order easily now: TOOLCRAFT 119089 Square nuts M12 DIN 928 Steel 500 pc(s) | Fast delivery | Reasonable prices
square nutsbuytoolcraftdinsteel
https://ba-bolts.co.uk/
Ba Imperial, Metric, Small Scale Hex Bolts, Ba Nuts, Washers, Studs, Threaded bar, Nylocks, Small taps & Dies, Half Nuts,small grubscrews
bafastenersimperialmicrometric