1.with 3000 square meter factory about 35 workshop workers and 25 office workers.
2.More than 20 sets of advanced machines with more than ten years domestic trade experience and international trade experience.
3.Manufacture and supply good quality automatic doors
4.With ISO 9001 Certification and many others certifications
5. Excellent DC brushless motor , high wear-resistant qualities wheels and reasonable structure design makes it more stable, quiet, longer life
6.Our Service system is perfect
Controller Dimensions : 85×124×600mm
Weight :12 kg
Maximun leaf weight :150 kg
Open range : 70°~115°
Closing speed : 10~43 cm/s
Door hold time :0.5~10 seconds
Main Power :AC 220V~250V,50~60 Hz
Maximum current :1A
Maximun motor power:55W
Wait Power :14W
Fuse :Minimum 3.5 ASlow
Operating Temperature : -30℃ ~+50℃
Swing Door,Exterior Swing Door,Aluminium Out Swing Door,Refrigerated Swing Door Shenzhen Hongfa Automatic Door Co., Ltd. , https://www.hongfadoor.com
1. Hot dip galvanized
2. The square lock nut when tightened with a wrench-firmly grip the bolt thread thus securely locks the bolt nut.
3. The lowest price
4. Strict quality control
5. We can manufacture it according to customers requirements.
The MF square lock nut when tightened with a wrench-firmly grip the bolt thread thus securely locks the bolt nut.
Stock No.
 Normal Size Inch (mm)
Thread Length Inch (mm)
Approximately Ship
 Weight kg./100 Pcs.
 Standard Pkg.Â
 Qty./ Carton
A0638
   3/8(9)
    16(400)
   7.90
  1,000
A0612
   1/2(13)
     13(325)
   8.80
  1,000
A0658
   5/8(16)
    11(275)
   9.90
   1,000
A0634
   3/4(19)
    10(250)
   10.80
   1,000
Our Services
1. Rich experience in OEM and ODM
2. Excellent One-stop service
3. High Quality Precision Customized forging & Casting services
4. The lowest price
5. Strict quality control
6 We can manufacture it according to customers requirements.
-------------------------------------------------------------------------------------------------------------------------
 FAQ:
Q1: How is the Design & Engineering
 A: Experienced and skilled team of designers including CAD designers and 3D designers has the capacity to deliver outstanding designs for your project.
     If you require more complex engineering of structures such as overhead transmission and distribution lines design,we can also provide this service also designer fee.
Â
Q2: What's the payment term?
 A: We accept T/T, L/C, West Union, Cash.
Â
Q3: What's the delivery time?
 A: Usually 2-4 weeks. Or according to quantitiesÂ
Â
Q4: What's the standard of package?
 A: Export standard package or special package as the requirement of customers.
Q5: What kind of product quality your factory offer?
 A: Our products with both excellent quality and competitive price. And we offer free sample for your reference.
 Â
Q6: Where is your mainly market?
  A: We mainly ship to South America, North America, Africa , Asia, etc.
Â
Q7: What kind of certificate you have?
 A: We have ISO9000, DASÂ
Â
-----------------------------------------------------------------------------------------------------------------
Dear Customer, Please feel free to contact me, Hope we can establish good business relationship,thanks!
Product name: Square lock nut
1. Hot dip galvanized
2. The square lock nut when tightened with a wrench-firmly grip the bolt thread thus securely locks the bolt nut.
3. The lowest price
4. Strict quality control
5. We can manufacture it according to customers requirements.
The MF square lock nut when tightened with a wrench-firmly grip the bolt thread thus securely locks the bolt nut.
Stock No.
 Normal Size Inch (mm)
Thread Length Inch (mm)
Approximately Ship
 Weight kg./100 Pcs.
 Standard Pkg.Â
 Qty./ Carton
A0638
   3/8(9)
    16(400)
   7.90
  1,000
A0612
   1/2(13)
     13(325)
   8.80
  1,000
A0658
   5/8(16)
    11(275)
   9.90
   1,000
A0634
   3/4(19)
    10(250)
   10.80
   1,000
Our Services
1. Rich experience in OEM and ODM
2. Excellent One-stop service
3. High Quality Precision Customized forging & Casting services
4. The lowest price
5. Strict quality control
6 We can manufacture it according to customers requirements.
-------------------------------------------------------------------------------------------------------------------------
 FAQ:
Q1: How is the Design & Engineering
 A: Experienced and skilled team of designers including CAD designers and 3D designers has the capacity to deliver outstanding designs for your project.
     If you require more complex engineering of structures such as overhead transmission and distribution lines design,we can also provide this service also designer fee.
Â
Q2: What's the payment term?
 A: We accept T/T, L/C, West Union, Cash.
Â
Q3: What's the delivery time?
 A: Usually 2-4 weeks. Or according to quantitiesÂ
Â
Q4: What's the standard of package?
 A: Export standard package or special package as the requirement of customers.
Q5: What kind of product quality your factory offer?
 A: Our products with both excellent quality and competitive price. And we offer free sample for your reference.
 Â
Q6: Where is your mainly market?
  A: We mainly ship to South America, North America, Africa , Asia, etc.
Â
Q7: What kind of certificate you have?
 A: We have ISO9000, DASÂ
Â
-----------------------------------------------------------------------------------------------------------------
Dear Customer, Please feel free to contact me, Hope we can establish good business relationship,thanks!
Galvanized Square Lock Nuts-Regular Bolt
Model NO.: A06
Trademark: RE
Transport Package: Carton Boxes for Packing
Specification: 1/2", 5/8", 3/4", 3/8"
Origin: Yueqing, Zhejiang, China
HS Code: 7326909000
Model NO.: A06
Trademark: RE
Transport Package: Carton Boxes for Packing
Specification: 1/2", 5/8", 3/4", 3/8"
Origin: Yueqing, Zhejiang, China
HS Code: 7326909000
Product name: Square lock nut