Flanged Bolts. Flanged Nuts. Sizes Available: M4, M5, M6, M8, M10. Includes: 1 × Flanged Button Head Bolt, 1 × Full Nut, 1 × Washer. Material: A2 Stainless Steel. Cap Head Bolts. Integrated flange spreads load evenly, removing the need for a separate washer under the head.
eBay