DIN 6334 — engineering drawing (Brassland). Plan view and section with dimension references.
Specification
| Standard | DIN 6334 |
| Type | Hexagon coupling / connector (long) nut |
| Thread | M6–M16; larger on request |
| Material | CW614N (CuZn39Pb3); lead-free CW724R on request |
| Certificate | EN 10204 3.1 per shipment; 3.2 on request |
Datasheet — dimensions to DIN 6334
| Thread d | Width A/F s | Across corners e | Length l |
|---|---|---|---|
| M6 | 10 | 11.1 | 18 |
| M8 | 13 | 14.4 | 24 |
| M10 | 17 | 18.9 | 30 |
| M12 | 19 | 21.1 | 36 |
| M16 | 24 | 26.8 | 48 |
Dimensions in mm to DIN 6334. DIN 6334 was not superseded by an ISO standard and retains the classic widths across flats (M10/M12/M14 = 17/19/22 mm) — unlike DIN 934 hex nuts, whose ISO successor ISO 4032 uses 16/18/21 mm. l = overall length (coupling / connector nut, about 3×d). Sizes and tolerances are made to your drawing on request.
Applications
Typical applications for the Brass Coupling Nut (3×d) include joining or extending two threaded rods or studs, suspended-ceiling and cable-tray drop rods, adjustable tie-rod assemblies, and connecting brass studding. As all parts are made to order, sizes, threads, plating and certification are tailored to your specification.
Related pages
All DIN/ISO nut types.
View →MaterialStandard free-cutting brass datasheet.
View →MaterialSilicon brass for RoHS / potable use.
View →GuideMetric, BSP and UNC thread reference.
View →IndustryBusbar and terminal nuts.
View →IndustryLocknuts and back-nuts.
View →GuideEngineer’s checklist.
View →Quote in 24 hours.
Give the standard, thread, finish and quantity. We are a brass nut manufacturer in Jamnagar, India, exporting to 40+ countries.
Other brass nuts in this range
ASME B18.2.2 Brass Hex Nuts & Jam Nuts (UNC/UNF) · ASME B18.6.3 Brass Machine Screw Nuts (UNC) · DIN 1587 Brass Acorn Cap Nut (High Form) · DIN 1804 Brass Slotted Round Nut · DIN 1816 Brass Cross-Hole Round Nut · DIN 439 Brass Thin Hex Nut · DIN 466 Brass Knurled Thumb Nut (High Form) · DIN 467 Brass Knurled Thumb Nut (Flat) · DIN 546 Brass Slotted Round Nut · DIN 547 Brass Two-Hole Round Nut · DIN 557 Brass Square Nut · DIN 6330 Brass High Hex Nut (1.5×d) · DIN 6923 Brass Hex Flange Nut · DIN 917 Brass Cap Nut (Low Form) · DIN 934 Brass Hex Nut · DIN 935 Brass Castle (Slotted) Nut · DIN 936 Brass Thin Jam Nut · all brass nuts.
Frequently asked questions
To join two externally threaded rods or studs end to end, or to extend a thread — it is fully threaded through its ~3×d length.
About 3× the thread diameter — e.g. 30 mm at M10 and 48 mm at M16.
No — a standard coupling nut has the same thread the full length; different-thread connectors are a custom part.
No current ISO standard matches it; DIN 6334 dimensions are used as the industry reference.