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Technical Specification
PRODUCT NUMBER FN12FN5FN6

Q 1. What sizes are included in the AB031FN flange nut assortment?

A. The assortment contains (approximate quantities): M5 x 0.8 (x120), M6 x 1.0 (x120), M8 x 1.25 (x120), M10 x 1.5 (x20), and M12 x 1.75mm (x10), totalling 390 pieces.

Q 2. What are serrated flange nuts and why use them instead of standard nuts?

A. Serrated flange nuts combine a nut and washer in one fastener. The flange distributes clamping force across a wider surface area for added stability, and the serrated edge grips the mating surface to resist loosening under vibration.

Q 3. What material are the flange nuts made from?

A. The nuts are manufactured from zinc plated steel, providing resistance to corrosion and oxidation.

Q 4. What standard are the AB031FN flange nuts manufactured to?

A. They are manufactured to DIN 6923.

Q 5. What applications are these serrated flange nuts suitable for?

A. They are suited to automotive, commercial, and engineering applications.

Q 6. How are the nuts stored and organised in the box?

A. The 390 pieces are supplied in a partitioned box, keeping each size separated for easy identification and storage.

Q 7. Are there alternative versions of this assortment with different size ranges?

A. The AB031FN covers M5-M12. For individual size packs as alternatives, see also: FN5, FN6, FN10, FN12.

Q 8. Are the quantities exact or approximate?

A. The quantities stated are approximate, as noted by Sealey in the product specification.

Q 9. Can these flange nuts be used in metric threaded applications generally?

A. Yes, as metric serrated flange nuts to DIN 6923 they are suited to standard metric threaded fastening in automotive, commercial, and engineering use.

Q 10. How long does delivery take?

A. Standard delivery is 2-3 working days for in-stock items. Next-day delivery is available for eligible orders placed before cut-off.

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