Black Stainless Steel Dome Nuts DIN1587 Blackened Finish Nut Fasteners and Fixings (Pack of 10) (M4 / 4mm)

A2 304 STAINLESS STEEL WITH BLACKENED FINISH – CORROSION RESISTANT & VISUALLY ELEGANT Manufactured from A2 304 stainless steel for genuine rust and corrosion resistance, then treated to a deep matt black finish. Unlike black-coated mild steel dome nuts that rust within months once the coating is scratched, these retain full corrosion resistance for life — making them ideal for visible decorative fixings, classic vehicle restoration, and any project where black hardware must genuinely last. DIN 1587 ACORN DOME DESIGN – DECORATIVE FINISH & THREAD PROTECTION Precision-manufactured to the DIN 1587 standard, these closed-end "acorn" dome nuts feature a smooth rounded dome that fully encloses the bolt thread end. Delivers a clean decorative finish on visible hardware while protecting thread ends from damage, snags, and injury risk — particularly important on handrails, garden furniture, children's equipment, and any installation where finger contact is likely. PACK OF 10 M4 BLACK DOME NUTS – READY FOR DECORATIVE & FUNCTIONAL FIXINGS Each pack contains 10 individual M4 black dome nuts with M4 x 0.7mm metric coarse thread. A practical quantity for decorative bolt finishing on furniture, handrails, gates and garden structures, vehicle bodywork, motorcycle restoration, bed frame assembly, signage, and any application requiring a clean black finish over an exposed bolt end. DECORATIVE & SAFETY-FIRST FINISH – COVERS SHARP THREAD ENDS The closed dome hides the cut end of any bolt or stud — eliminating snag hazards on clothing, skin, or pets while delivering a professional finished appearance. Valuable in family environments (cot frames, garden swings, playground equipment), exposed handrail terminations, and any visible installation where a raw cut thread would look unfinished or pose a snag risk. UNIVERSAL M4 THREAD – COMPATIBLE WITH ALL STANDARD M4 BOLTS & STUDDING With a standard M4 x 0.7mm right-hand coarse pitch thread, these dome nuts are universally compatible with all M4 metric bolts, hex bolts, machine screws, and threaded studs across all major brands. Pairs perfectly with A2 304 stainless hex bolts and threaded studding. Available from M3 through M10 — browse our store for the full black DIN 1587 dome nut range.