
Product Name | Hex Coupling Nut,Hex long nut |
Standard | ASTM B18.2.2, DIN6334 |
Material | carbon steel, alloy steel, stainless steel, brass, etc. |
Grade | SAE J995 Gr.2, 5, 8; CL4, 5, 6, 8, 10, 12 |
Size | #6-6''; M6-M36 |
Surface treatment | plain, black, zinc plated, HDG, mechnical galvanized, Dacromet, PTFE Coated, Nickel, Chrome,Geomet 500B, Magni, polishing, passivation, Demagnetization |
Delivery time | 15-30 days in peak season, 25-45 days in off season |
Package | bulk in cartons+ wooden pallet, bulk in steel pails +wooden pallet; bulk in wooden cases, tip up by plastic bag+ steel pallet, or according to customer's special requirement |
Payment | T/T, L/C, western union, paypal, etc. |
Trade Term | EXW, FOB, CFR, CIF, DAP, DDU, DDP |
Advantage | High quality; Competitive price; Timely delivery; Technical support; Supply Material and Test Reports; Samples for free |
Notice | Please let's know the Size, quantity, Material or Grade, surface, If it is special and Non-standard products, please supply the Drawing or Photos or Samples to us |





,Coupling nut is also called extension nut, or coupler, used to connect two male threads, the outside of coupling nut is mostly a hex, so the coupling nut we mostly see is hex coupling nut or hex coupler.


Win-Win cooperation is our culture, strictly control product quality, delivery time and offer good service to our customers, we won many big project clients in USA, Canada and European countries, as well as some big distributors worldwide.

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* Strong Technical support: our engineer in fastener industry for about 20 years are hear for you.
* With 50 friend factories support, we can customize many non-standard fasteners according to the drawings or samples, as well as turning parts and stamping parts.
* 10 years' experience in international trading industry.
* Our company policy: Product quality>lead time>pricing, welcome the customers which have the same belief to inquiry to us!
Looking forwarding to cooperate with you, we will use our best service to prove your choice right! |

1.Why choose Shanghai Hengrui? |
Our sales and technical staff have more than 10 years in fastener industry, can offer your professional service, now we have built cooperation relationship with many customers in projects, even Municipal projects from USA and Canada.
2.How to guarantee the quality? |
3.Could you provide free samples? |
4.What's the payment? |
5.What is the delivery time? |
20 -45 days in generally, the precise delivery time based on the detailed order.
Send inquiry to get free sample. |