DIN6334 M6×18mm Grade 12.9 Galvanized Steel Long Connector Coupling Thread Nut
Our DIN6334 long connector coupling thread nuts are manufactured from high-strength steel with a Grade 12.9 rating, sized at M6×18mm and finished with galvanized surface treatment for enhanced durability. Produced strictly in compliance with DIN6334 standards, these long coupling nuts feature full and precise metric threads along the entire length, ensuring stable engagement, smooth assembly, and reliable connection between two threaded rods or bolts.
The Grade 12.9 material provides exceptional tensile strength, hardness, and resistance to deformation, making these nuts suitable for heavy-duty mechanical connections, structural assembly, machinery maintenance, and industrial fastening applications. The galvanized surface effectively improves corrosion and rust resistance, extending service life in humid and outdoor working environments.
With a long cylindrical design, these coupling nuts allow for length adjustment and strong clamping force. Strict quality control is carried out during production, including dimensional inspection, thread accuracy testing, and hardness verification, to ensure consistent performance and perfect interchangeability. Widely used in construction, machinery, automotive, and equipment assembly, these DIN6334 long coupling nuts offer a secure, durable, and professional solution for various industrial connection requirements.
- Stainless steel 18-8
A corrosion resistant steel alloy. The most common stainless steel for general hardware use.
- Stainless steel 18-8 - Left hand (reverse) thread
A corrosion resistant steel alloy. The most common stainless steel for general hardware use.
- Stainless steel 18-8 black oxide finish
A corrosion resistant steel alloy. The most common stainless steel for general hardware use. A chemically produced coating that leaves the steel surface with a matte black finish and offers mild corrosion resistance.
- Stainless steel 316
A highly corrosion resistant grade of stainless steel. Ideal in salt water and chlorine environments.
1. Certification: ISO, ROHS, SGS
2. Available Standard: DIN, ANSI, ASTM, JIS, BSW
3. Strength: Grade 4.8,Grade 8.8,Grade10.9,Grade12.9 A2-70, A4-70, A4-80
4. Finishing: Yellow, blue, white zinc plated, Galvanized,HDG,Chromate,Dacromet
5. Available material: Carbon steel, stainelss steel SS304, A2 ,Stainless steel SS314,A4.
6. Size: M2-M100, Length: 5-300mm, Moq: 500pcs, Port: Shenzhen, Shanghai
7. Available Packing: Plastic bags+Chipboard Cartons+Plywood pallet with Belt &Film.
DESIGN
TEMP. | FLANGES | GRADE
THREAD RODS | GRADE
NUTS |
| -195° to 102°C | ASTM A182
Gr. F304, F304L, F316,
F316L, F321, F347 | A320 Gr.B8 Class2 | A194 Gr.8A |
| -101° to -47°C | ASTM A350
Gr.LF3 | A320 Gr.L7 | A194 Gr.7 |
| -46° to -30°C | ASTM A350
Gr.LF2 | A320 Gr.L7 | A194 Gr.7 |
| -29° to 427°C | ASTM A105 | A193 Gr.B7 | A194 Gr.2H |
| 428° to 537°C | ASTM A182
Gr.F11, F22 | A193 Gr.B16 | A194 Gr.2H |
| 538° to 648°C | ASTM A182
Gr.F11, F22 | A193 Gr.B8 Class1 | A194 Gr.8A |
| 649° to 815°C | ASTM A182
Gr. F304H, F316H | A193 Gr.B8 Class1 | A194 Gr.8A |
DESIGN
TEMP. | FLG'S | GRADE
THREAD RODS | GRADE
NUTS |
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Package & Shipping
Package details:
1) Sample order, 20/25kg per carton with our logo or neutral package;
2) For Large orders, we can custom packaging;
3) Normal Packing: 1000/500/250pcs per small box. then into cartons and pallet;
4) According to customers' requirements.
FAQ
1.How do you let me trust you?
We are a Golden supplier in Alibaba who do business for more than 5 years. You can make an order by Alibaba to us directly.
2.How about your price?
High-quality products with a reasonable price suitable for your market.
3.How do you control your quality?
We request a QC inspection for each batch of goods. And we can provide you inspection report and mill certificate if you want..
4.Could you provide free samples?
For new customers, We can provide free samples for standard fasteners. But the clients will pay the express charges. For regular customers, We will send you free samples and pay express charges by ourselves.
5.How about your delivery time?
Generally speaking, All the goods have stock with little quantity, we can delivery them with one week. If the quantity is 1-2container, we can give you with 30-45days.
6.What is your packing?
Our packing is 20-25kg for one carton,36 or 48pcs cartons for one pallet. One pallet is about 900-960kg, We also can make the customer's logo on the cartons. Or we customized cartons according to customers' requirement, If you need small box packing, we can do according to your requirement.
7.What is your payment term?
We can accept T/T,LC for general order. For new customer, we request 20%-50% T/T in advance, and balance payment should against B/L copy. For regular customer, we can provide delay payment after B/L date about 30-90 days.
