1/4-20 Serrated Flange Hex Lock Nuts Case Hardened HR15N 78/90 Black Zinc and Bake (Pack of 50): Amazon.com: Industrial & Scientific
165 teiliges Set Hutmutter hohe Form nach DIN 1587 rostfreier Edelstahl A2 V2A Sechskant-Hutmuttern Größen M3 M4 M5 M6 M8 M10 M12 : Amazon.de: Baumarkt
10 Sechskant-Hutmuttern DIN 1587 Edelstahl A2 für M12 : Amazon.de: Baumarkt
Hex Jam Nuts A2 Stainless Steel - 12M x 1.75 (19M Flats x 5.7M Thick) Qty-25: Amazon.com: Industrial & Scientific
Acorn Nuts (Self-Locking) - M8 - (Pack of 100) - DIN 986 - Hexagonal Cap Nut with Clamp Part - Stainless Steel A2 (V2A) - SC986 | SC Standard Parts : Amazon.de: DIY & Tools