Cap, Coupling & Wing Nuts

DIN 6334 Long Hex Coupling Nut

Long hexagon nut (length 3 × d) to DIN 6334 for joining two threaded rods or extending studs in MEP supports, formwork and anchoring.

Finishes

Finish	Applied	Notes
Zinc plated	Our own line	Clear/blue, yellow or black passivation
Zinc-nickel	Our own line	12–15 µm, clear or black passivation; 1,000 h (12 µm) to 1,440 h (15 µm) neutral salt spray
Hot-dip galvanized	Available	ISO 10684 / ASTM F2329; nuts tapped oversize to suit

For property class 10.9 and above, choose zinc flake, or zinc-nickel with hydrogen-embrittlement relief agreed at order stage.

MOQ: 500 pcs per size (negotiable for trial orders)
Mixed sizes: Welcome in one order
Samples: Samples available — cost and lead time quoted per request
Lead time: 15–25 days for standard parts; finishes such as HDG or Dacromet add a few days
Payment: T/T 30% deposit, 70% before shipment
Shipping: FOB Ningbo / CIF / DDP on request
Packaging: Cartons on pallets, or private-label boxes and bags
Documents: Material certificate, coating thickness and salt-spray reports on request
Custom: Drawings, non-standard sizes, coatings, marking and private-label packaging

Tell us size, grade, finish and quantity. We reply with price and lead time within 24 hours.