Metal Sheet Fabrication Service Standard Component

Product Description

Product Description

Introduction to Nut

-  Definition : A nut is a fastener with internal threads, usually used in conjunction with a screw for fastening and connecting components.
-  Main components  :
-  Threaded hole  : The threaded hole inside the nut matches the external thread of the screw, and the fastening is achieved by rotating the nut.
-  Head  : The head shape of the nut can be hexagonal, square, round, etc. Hexagonal nuts are the most common and are convenient to tighten with a wrench.
-  Classification 
-  Classified by shape  :
-  Hexagonal nut  : The most common type of nut, with a hexagonal head, which is convenient for tightening with a wrench.
-  Square nut  : The head is square and is suitable for some special occasions.
-  Round nut  : The head is circular and is usually used for fastening rotating parts.
-  Classified by materials  :
-  Carbon steel nuts  : They have a lower cost and higher strength, but poorer corrosion resistance.
-  Stainless Steel nuts  : Strong corrosion resistance, suitable for humid environments or occasions with corrosive media.
-  Aluminum alloy nuts  : Light in weight, good in corrosion resistance, suitable for aerospace and other fields.

The combined Use of screws and nuts

-  Fastening Principle  : Screws and nuts generate axial force through the mutual cooperation of their threads to fasten the connected components. When the nut rotates, it moves along the thread of the screw, thus tightly connecting the two components together.
-  Precautions  :
-  Thread matching  : The threads of screws and nuts must match, including pitch, thread shape, etc. Otherwise, they cannot be tightened properly.
-  Torque Control  : During the fastening process, it is necessary to control an appropriate torque to avoid component damage or thread slithering due to excessive tightness.
-  Anti-loosening measures  : In some environments with vibration or dynamic loads, anti-loosening measures need to be taken, such as using spring washers, double nuts, etc.

Specification

Metal process	stamping, deep stamping, bending, punching, threading, welding, tapping, riveting, turning, deep drawing.
Material	stainless steel, spring steel, carbon steel, copper, brass, bronze, aluminum, alloy.
Surface finish	polished, galvanized, zinc-plated, nickel-plated, chrome-plated, silver-plated, gold-plated, imitation gold-plated, powder coating, etc.
Plating tech	continuous plating, partial plating, and spot plating, etc.
Tolerance	+/-0.02 to +/-0.05.
Inspection	IQC, IPQC, FQC, QA.
Quality control	ISO9001:2008.

MOQ	100PCS
Packing details	plastic + cartons + wooden cases
Payment term	T/T , Western Union, cash etc
Delivery	By sea, by air,  by land,  by courier
Mould time	5-15days
Product lead time	25-30days
Files for quote	PDF, JPG, CAD, 3D

Company Profile

OEM one-stop services

We are a professional production factory specialized in sheet metal fabrication mainly stamping, deep drawing, welding and wire bending.

We have our own equipments for a whole production flow, from mould design, prototypes develop, processing, assembly to surface coating.

We have a high level team of engineers to provide you with the most practical and cost-effective solutions. Our workers are experienced and our quality control is strict. 

We have the ability to provide clients with high quality and low price products. Aligning ourselves with purchasers in the same vision of providing superior quality, has contributed to our success. Also honesty is our best policy. 

Our philosophy is simple: we deliver our promises.

If you are looking for a manufacturer to fill all of your custom sheet metal parts for your production or business, then you come to the right place. 

Hengjin Hardware provides free technical assistance for your projects. 

When you contact us, you're assured of an experience that exceeds your expectations, you'll enjoy place of mind knowing that you found dedicate professionals.

Packaging & Shipping

Packaging materials

Small metal stamping parts are commonly made of plastic bags, plastic boxes, etc.

Medium-sized stamping parts, paper boxes or cartons are commonly used, which can provide certain cushioning protection and are environmentally friendly.

Large or heavy stamping parts, pallet packaging can provide better support and protection, facilitating forklift handling.

In special circumstances, metal packaging is used, such as when higher protective strength is required or when moisture-proof and rust-proof requirements are needed.

 

Packaging technology

Bulk packaging: The stamped parts are directly placed into the packaging container, which is suitable for products with regular shapes and not easy to be damaged.

Pallet packaging: Place the stamped parts on pallets and then seal them with plastic film or cartons for easy stacking and transportation.

Tape and reel packaging: For some small stamping parts, such as electronic components, tape or reels are used for packaging to facilitate automated assembly.

Cushioning protection: Add cushioning materials such as foam and sponge inside the package to prevent the stamped parts from being damaged due to collision during transportation.

Our Advantages :

1. Over 15 years professional technology in metal stamping/punching moulds/molds/tools/dies making, metal parts' making;

2. 10 years experience in developing and export in foreign trade;

3. Certificate: ISO9001:2008 etc;

4. All materials meet ROSH, certificates for materials are available;

5. Capacity can be 2000-800K PCS each day;

6. Customize: OEM or ODM according to buyers' requirement;

7. Various high-quality import equipment and machine center;

8. IQC/PQC/FQC to control the quality all the way;

9. Ensure no defective products to send out;

10. Small orders are accepted;

FAQ

Q: How soon can I get reply after send inquiry?
A:All inquiries will be replied within two hours except sleeping time in China.    
 
Q: How soon can I get samples ?
A: The drawing determines the length of time,Generally samples can be sent out within 10 working days after product drawing confirmed by both side.  
 
Q: What file format can you accept for my products?
A: 1.We can accept varies format, step, stp, jpg,pdf, dwg, dxf,3d and so on.    
     2.If you do not have a prepared CAD file, we can accept a scan of a hand drawn design.  
 
Q: If I don't have drawing, how can I get sample ?
A: If you don't have any drawing,you can send us your sample, we will scan it and make 2D and 3D drawing first, then make sample for you.
 
Q: What are many common materials that you use in projects?  
A: Aluminum,Stainless Steel, Carbon Steel, Copper, Plastics and so on.
 
Q: What's your MOQ(minimum order quantity)
A: Our MOQ is 100 pcs, you are welcome to send us trial order to test our quality and service.
 
Q: What's the payment term do you accept?
A: EXW/FOB Tianjin, paid by T/T, Western Union.