SS304 316 DIN6334 Coupling Grade A2 M6 Stainless Steel Nut
Din6334 Zinc Stainless Steel Long Sleeve Inch Metric Hex Coupling Nuts , Find Complete
Details about Din6334 Zinc Stainless Steel Long Sleeve Inch Metric Hex Coupling Nuts,Inch
Hex Coupling Nuts,Metric Hex Coupling Nuts
A coupling nut, also known as extension nut, is a threaded fastener for joining
two male threads, most commonly a threaded rod, but also pipes. The outside
of the fastener is usually a hex so a wrench can hold it. Variations include
reducing coupling nuts, for joining two different size threads; sight hole
coupling nuts, which have a sight hole for observing the amount of engagement;
and coupling nuts with left-handed threads. These are used to make up long rod
assemblies from shorter lengths of rods. The rods are threaded into the coupling
nut for a certain distance. Coupling nut dimensions are described by the Industrial
Fasteners Institute in standard IFI-128. It is given a plain finish. It is either cold
drawn or hot rolled depending on the bar stock used. Coupling nuts threaded
with two different thread sizes and profiles are called reducing coupling nuts.
Coupling nuts can be used to tighten a rod assembly inward or to press a rod
assembly outward
Materials and Chemical compstition
| CHEMICAL COMPOSI(% ) | |||||||||
| Type | C | Si | Mn | P | S | Ni | Cr | Mo | Cu |
| ≤ | ≤ | ≤ | ≤ | ≤ | ≥ | ≥ | ≥ | ≈ | |
| 201Cu | 0.08 | 1.00 | 7.5-10 | 0.06 | 0.03 | 4.00-6.00 | 14.0-17.0 | 2.0-3.0 | |
| 201 | 0.15 | 1.00 | 8.50 | 0.06 | 0.03 | 3.50-5.50 | 16.0-18.0 | ||
| 202 | 0.15 | 1.00 | 7.5-10 | 0.06 | 0.03 | 4.00-6.00 | 17.0-19.0 | ||
| 301 | 0.15 | 1.00 | 2.00 | 0.045 | 0.03 | 5.00-8.00 | 16.0-18.0 | ||
| 302 | 0.15 | 1.00 | 2.00 | 0.045 | 0.03 | 8.00-10.0 | 17.0-19.0 | ||
| XM7 (302HQ) | 0.08 | 1.00 | 2.00 | 0.045 | 0.03 | 8.50-10.5 | 17.0-9.00 | 3.0-4.0 | |
| 303 | 0.15 | 1.00 | 2.00 | 0.20 | ≥0.15 | 8.00-10.0 | 17.0-19.0 | ≤0.60 | |
| 304 | 0.07 | 1.00 | 2.00 | 0.035 | 0.03 | 8.00-10.0 | 18.0-20.0 | ||
| 304HC | 0.08 | 1.00 | 2.00 | 0.045 | 0.03 | 8.00-10.0 | 17.0-19.0 | 1.0-3.0 | |
| 304M | 0.08 | 1.00 | 2.00 | 0.045 | 0.03 | 8.50-10.0 | 18.0-20.0 | ||
| 316 | 0.08 | 1.00 | 2.00 | 0.045 | 0.03 | 10.0-14.0 | 16.0-18.0 | 2.0-3.0 | |
| 316L (12Ni) | 0.03 | 1.00 | 2.00 | 0.045 | 0.03 | 12.0-15.0 | 16.0-18.0 | 2.0-3.0 | |
| 316L (10Ni) | 0.03 | 1.00 | 2.00 | 0.045 | 0.03 | 10.0-14.0 | 16.0-18.0 | 2.0-3.0 | |
| 321 | 0.08 | 1.00 | 2.00 | 0.045 | 0.03 | 9.00-13.0 | 17.0-19.0 | Ti≤5*C% | |
| 2520 | 0.08 | 1.00 | 2.00 | 0.035 | 0.03 | 19.0-22.0 | 24.0-26.0 | ||
Specification
Legend:
l - length of nut
s - size of the hexagon
d - the nominal diameter of the thread
Makings:QBH
Stainless: A2,A4
Plastic: -
Non Ferrous: -
Thread: 6H
Dimensions elongated hexagon nuts DIN 6334 UNIT:mm | |||
| d | L | s | KG/MPCS |
| M6 | 18 | 10 | 7 |
| M8 | 24 | 13 | 18 |
| M10 | 30 | 17 | 42 |
| M12 | 36 | 19 | 63 |
| M14 | 42 | 22 | 95.5 |
| M16 | 48 | 24 | 122 |
| M18 | 54 | 27 | 140 |
| M20 | 60 | 30 | 240 |
| M22 | 66 | 32 | 300 |
| M24 | 72 | 36 | 412 |
| M27 | 81 | 41 | 608 |
| M30 | 90 | 46 | 825 |
| M33 | 99 | 50 | 1100 |
| M36 | 108 | 55 | 1470 |
Metric DIN 6334 Hexagon Coupling Nuts also known as extension nuts
are elongated fully threaded hex nuts that often used to join two
externally threaded fasteners usually threaded rods. DIN 6334 metric
hex nuts have a height of 3 x the major diameter of the thread.
Metric DIN 6334 Ellongated Hexagon Coupling Nuts height 3 x Dia
Equivalent norms: CSN 021604;
Process flow
Cold forging
Annealing treatment(if need) ➨ wiredrawing ➨ clod forging ➨ tapping ➨make heat treatment(if need) ➨ Finish ➨ Packing
Hot forging
Cutting material ➨ hot forging ➨ turning ➨ tapping ➨ make heat treatment(if need) ➨ Finish ➨ Packing
Product Grade
304 Grade A2-70 A2-80 316 Grade A2-70 A2-80
PACKING
QBH BULK
20-25KG/CTN,36CTNS/PALLET
20-30KG/BAGS,36BAGS/PALLET
ONE TON/BOXES
50KG/ IRON DRUM,12 IRON DRUMS/PALLET
QBH SMALL PACKING
Packing in small boxes according to customer’s requirements
Packing in plastic bag according to customer’s requirements
QBH PALLET TYPE
SOLID WOOD FUMIGATION PALLET
EURO Pallet
THREE SPLINT PALLET
WOODEN BOX
The advantages of QBH
- QBH brand sales to the main quality assurance.
- Years of export trade management, excellent service, word-of-mouth guarantee.
- By working with TUV,escort for quality.
- Customization of non-standard parts can be made according to customer's requirements and drawings.
- For quality customers,we can provide a certain credit period.
Product application
Often referred to as extension nuts, use these to connect and extend threaded rods. They're about half the strength of medium-strength steel coupling nuts for use in light duty fastening applications.
DIN 6334 Alias
- French (fr): DIN 6334 Écrous hexagonaux – 3D
- German (de): DIN 6334 Sechskantmuttern, 3d hoch
- Italian (it): DIN 6334 Dadi esagonali di prolunga m 3 x d
- Dutch (nl): DIN 6334 Hexagon Noten – 3D
- Czech (cs): DIN 6334 Prodlužovací matice 3D
Metric Super-Corrosion-Resistant 304 and 316 Stainless Steel Coupling Nuts
Made from 304 and 316 stainless steel, these coupling have excellent resistance to chemicals and salt water. Also known as extension nuts, use them to connect and extend threaded rods. They may be mildly magnetic.
