Hex Jam Nuts

A.Main Feature

1)Hex jam nuts are thinner than a standard hex nut but have the same dimension across the flats and corners.

2)Hex jam nuts have two common applications.

3) A jam nut can be threaded onto a bolt and run tight against the standard nut which will lock the nut in place and prevent it from backing off.

4)Jam nuts are sometimes used for leveling purposes as well.

Since hot-dip galvanizing typically adds 2.2 to 5 mils of thickness to the threaded portion of a fastener, galvanized hex jam nuts are tapped oversize to compensate for the corrosion resistant coating on the bolts.

B.Drawing of hex jam nuts.

Company Introduction                                                               

Dongguan Yongfei Hardware Products Co., Ltd. was established on May 1st 2000 with 2 machines

and now we have a workshop area of over 15000 meter square and over 400 employees.

We specialize in all kinds of CNC precision parts, cellphone part, plug head , communication connector, electronic cigarette hardware part, AC/DC fan part, printer shaft, motorcycle shaft, valve part, built-in fittings, standard&non-standard fasteners.

Product Show       

Equipments and Details         

Dongguan Yongfei Hardware Products Co., Ltd. more than 120 CNC lathe machine, 300 auto lathe machine, 300 processing machine such as drilling, milling, knurling, grinding, ultrasonic washing machine etc. The max diameter we can do with our machines are 80cm while the tolerance can be as accurate as 0.001mm. In order to ensure the quality, we are also equipped with wide range of inspection machines such as the 2.5 dimension detector, projection detector, roughness tester, salt spray tester, profilometer, tensile tester, hardness tester, flow meter and other advanced quality checking equipment.

Factory Show                                                                                 

Our Factory covers an area of over 15000 meter square. 8S management has been full implemented within Yongfei. All the departments in the factory are clean and tidy. Because of our fast development, we plan to find much larger space to build our factory within 3 years, then we will build the most advanced workshop and production line in the world. 

Certificates      

Yongfei Hardware has been qualified with the ISO 9001 quality management system, ISO14001 environment management system since the year 2005. All the production processes in the factory are following the guideline of ISO system. Recently, Yongfei is preparing apply for the TS16949 certificate which will lead our management to a new level. Last, all all raw material are complied to ROHS with no harm to people.  

Our Team 

Our general manager has rich experience in the lathe technology & factory management for over 20 years, he has advanced management conception and technical knowledge. Over these years, we have cultivated a group of experienced management & technology talents and participating in competition with high technology, high quality, high productivity, first class service and preferential price. We treat our people as one of the most valuable assets in our company and organise a wide range of company events to make them relax and have fun.

Customer Visit 

The sales revenue was 35million USD for last year. Yongfei’s customer covers every corner in the world such USA, Europe, Japan, Korea, Singapore and so on. We are the long term suppliers for company like Amphenol, Danfoss, CMT, Well Shin, China First Union, Bossard, TR fastenings, COPRECI etc.

Payment  

Currently, we can accpet T/T and Western Union as paymment method. As a new customer, we can do T/T 30percent when place the order and 70percent when the order is ready to ship. But after several transactions without problem, we can do credit 1 month or more.                                                                       

Shipment   

There are a wide range shipping methond for you to choose such as DHL,UPS,FEDEX,EMS,EXW, FOB,CFR,CIF,DDP etc.                                                                                   

Contact Information