Can you make nuts to my drawing?

Yes — send the drawing with material, thread and finish.

Cap, Coupling & Wing Nuts

Special-purpose nuts: DIN 1587 domed (acorn) cap nuts that cover thread ends, DIN 6334 long coupling nuts for joining threaded rods, DIN 315 wing nuts for hand tightening, and DIN 1804 slotted round nuts for bearings and shafts. Carbon steel or stainless, with zinc, zinc-nickel or bright chrome finish.

Request a Cap, Coupling & Wing Nut Quote Compare standards

Cap, Coupling & Wing Nuts we supply

DIN 1587 Hex Domed Cap Nut (Acorn Nut)

DIN 6334 Long Hex Coupling Nut

DIN 315 Wing Nut

DIN 1804 Slotted Round Nut – representative photo

DIN 1804 Slotted Round Nut (KM Lock Nut)

Cap, Coupling & Wing Nuts: standards, sizes and options
Product / standard	Sizes	Grades	Material	Finishes	MOQ
DIN 1587 DIN 1587 Cap Nut	M4 – M24	6, A2-70	Carbon steel; Stainless 304	Zinc plated, Zinc-nickel, Stainless (no coating)	500 pcs / size
DIN 6334 DIN 6334 Coupling Nut	M6 – M24	6, 8, A2-70	Carbon steel; Stainless 304	Zinc plated, Zinc-nickel, Hot-dip galvanized	500 pcs / size
DIN 315 DIN 315 Wing Nut	M4 – M24	Steel, A2-70	Carbon steel; Stainless 304	Zinc plated, Zinc-nickel, Stainless (no coating)	500 pcs / size
DIN 1804 / DIN 981 DIN 1804 Slotted Round Nut	M10x0.75 – M200x3	Steel	Carbon steel C35 / 45#	Black oxide / phosphate, Zinc plated, Plain	500 pcs / size

Ordering cap, coupling & wing nuts

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

To quote quickly, please send

Standard (e.g. DIN, ISO, ASTM) or drawing number
Size × length and thread pitch
Property class / grade and material
Finish and coating thickness (or the salt-spray hours you need)
Quantity per size and annual volume
Packaging and destination port

Finishes for cap, coupling & wing nuts

Zinc-nickel and zinc are plated on our own line in Ningbo. Other finishes are applied by specialist coaters to the relevant standard.

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
Stainless (no coating)	Available	A2 (304) / A4 (316) stainless, passivated
Hot-dip galvanized	Available	ISO 10684 / ASTM F2329; nuts tapped oversize to suit
Black oxide / phosphate	Available	Indoor or oiled service
Plain	Available	For customer-side coating

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

Row of zinc-nickel electroplating tanks — Our zinc-nickel plating line. Salt spray: 12 µm ≈ 1,000 h, 15 µm ≈ 1,440 h (neutral salt spray to first red rust). How zinc-nickel compares

How to choose

Need a cap nut to seal the thread?: DIN 1587 is a one-piece domed nut. For decorative parts we can supply chrome or stainless versions.
Coupling nut length?: DIN 6334 nuts are 3 × d long; other lengths are made to order.

Request a cap, coupling & wing nut quote

Send sizes and quantities — we reply with price, finish options and lead time within 24 hours.