200pcs) ISO 7380 M8X40 Hexagon Socket Button Head Screw Flange Fullthread A2 Stainless Steel, Ships Free in USA by Aspen Fasteners, ASSP7380228-40: Amazon.com: Industrial & Scientific
150 pcs) M5-0.8 X 20mm, ISO 7380-2, Metric, Flanged Button Head Hex Socket Cap Screws, A2 Stainless Steel: Amazon.com: Industrial & Scientific
M6-1 x 20mm Button Head Socket Cap Screw A2 (18-8) Stainless | Class A2 (18-8) | DIN 7380 | ISO 7380 (Quantity: 800) Diameter: 6, Length: 20, Surface:, Full Thread: Amazon.com: Industrial & Scientific
Fafeicy 50Pcs ISO 7380 Flanged Button Head Screws, A2‑70 Stainless Steel Buttons Heads Socket Caps Bolts Kit, for Construction, Automobile and Product Manufacturing(M5*35MM), Bolt: Amazon.com: Industrial & Scientific