| d | M1 | M1.2 | M1.4 | M1.6 | (M1.7) | M2 | (M2.3) | M2.5 | (M2.6) | M3 | (M3.5) | M4 | M5 | M6 | (M7) | M8 | |
| P | 0.25 | 0.25 | 0.3 | 0.35 | 0.35 | 0.4 | 0.45 | 0.45 | 0.45 | 0.5 | 0.6 | 0.7 | 0.8 | 1 | 1 | 1.25 | |
| k | max | 0.8 | 1 | 1.2 | 1.3 | 1.4 | 1.6 | 1.8 | 2 | 2 | 2.4 | 2.8 | 3.2 | 4 | 5 | 5.5 | 6.5 |
| min | 0.55 | 0.75 | 0.95 | 1.05 | 1.15 | 1.35 | 1.55 | 1.75 | 1.75 | 2.15 | 2.55 | 2.9 | 3.7 | 4.7 | 5.2 | 6.14 | |
| s | max | 2.5 | 3 | 3 | 3.2 | 3.5 | 4 | 4.5 | 5 | 5 | 5.5 | 6 | 7 | 8 | 10 | 11 | 13 |
| min | 2.4 | 2.9 | 2.9 | 3.02 | 3.38 | 3.82 | 4.32 | 4.82 | 4.82 | 5.32 | 5.82 | 6.78 | 7.78 | 9.78 | 10.73 | 12.73 | |
| e | min | 2.71 | 3.28 | 3.28 | 3.41 | 3.82 | 4.32 | 4.88 | 5.45 | 5.45 | 6.01 | 6.58 | 7.66 | 8.79 | 11.05 | 12.12 | 14.38 |
| Unit weight≈g | 0.03 | 0.054 | 0.063 | 0.076 | 0.1 | 0.142 | 0.2 | 0.28 | 0.72 | 0.384 | 0.514 | 0.81 | 1.23 | 2.5 | 3.12 | 5.2 | |
| d | M10 | M12 | (M14) | M16 | (M18) | M20 | (M22) | M24 | (M27) | M30 | (M33) | M36 | (M39) | M42 | (M45) | M48 | |
| P | 1.5 | 1.75 | 2 | 2 | 2.5 | 2.5 | 2.5 | 3 | 3 | 3.5 | 3.5 | 4 | 4 | 4.5 | 4.5 | 5 | |
| k | max | 8 | 10 | 11 | 13 | 15 | 16 | 18 | 19 | 22 | 24 | 26 | 29 | 31 | 34 | 36 | 38 |
| min | 7.64 | 9.64 | 10.3 | 12.3 | 14.3 | 14.9 | 16.9 | 17.7 | 20.7 | 22.7 | 24.7 | 27.4 | 29.4 | 32.4 | 34.4 | 36.4 | |
| s | max | 17 | 19 | 22 | 24 | 27 | 30 | 32 | 36 | 41 | 46 | 50 | 55 | 60 | 65 | 70 | 75 |
| min | 16.73 | 18.67 | 21.67 | 23.67 | 26.16 | 29.16 | 31 | 35 | 40 | 45 | 49 | 53.8 | 58.8 | 63.1 | 68.1 | 73.1 | |
| e | min | 18.9 | 21.1 | 24.49 | 26.75 | 29.56 | 32.95 | 35.03 | 39.55 | 45.2 | 50.85 | 55.37 | 60.79 | 66.44 | 71.3 | 76.95 | 82.6 |
| Unit weight≈g | 11.6 | 17.3 | 25 | 33.3 | 49.4 | 64.4 | 79 | 110 | 165 | 223 | 288 | 393 | 502 | 652 | 800 | 977 | |
| d | (M52) | M56 | (M60) | M64 | (M68) | M72 | (M76) | M80 | (M85) | M90 | M100 | M110 | M125 | M140 | M160 | |
| P | 5 | 5.5 | 5.5 | 6 | 6 | / | / | / | / | / | / | / | / | / | / | |
| k | max | 42 | 45 | 48 | 51 | 54 | 58 | 61 | 64 | 68 | 72 | 80 | 88 | 100 | 112 | 128 |
| min | 40.4 | 43.4 | 46.4 | 49.1 | 52.1 | 56.1 | 59.1 | 62.1 | 66.1 | 70.1 | 78.1 | 85.8 | 97.8 | 109.8 | 125.5 | |
| s | max | 80 | 85 | 90 | 95 | 100 | 105 | 110 | 115 | 120 | 130 | 145 | 155 | 180 | 200 | 230 |
| min | 78.1 | 82.8 | 87.8 | 92.8 | 97.8 | 102.8 | 107.8 | 112.8 | 117.8 | 127.5 | 142.5 | 152.5 | 177.5 | 195.4 | 225.4 | |
| e | min | 88.25 | 93.56 | 99.21 | 104.86 | 110.51 | 116.16 | 121.81 | 127.46 | 133.11 | 144.08 | 161.02 | 172.32 | 200.57 | 220.8 | 254.7 |
| Unit weight≈g | 1220 | 1420 | 1690 | 1980 | 2300 | 2670 | 3040 | 3440 | 3930 | 4930 | 6820 | 8200 | 13000 | 17500 | 26500 | |
Main Products
CertificationsTesting Laboratory
We have Magnetic Powder Detector, Material Testing Machine, Metallographic Microscope, such testing instruments, guarantee product high quality and beautiful appearance.The quality control is strictly performed from buying raw materials in warehouse to different machining procession and to final packing.
Production Process
First, we have our own High-precision Digital Machining center for mould making in special Mould Workshop, excellent mould make product beautiful appearance and its size accurately.
The second, we adopt blasting procession, removing Oxidation surface, make the surface to be bright and clean and uniform and beautiful.
Company ProfileKunshan Zhonggu Precision Hardware Co., Ltd founded in 2006, is a set design, development, production, sale as a whole, professional production and operation of various types of industrial fasteners.
Company provides: National standard(GB), British standard(BS), German standard(DIN), American standard (ANSI) IFI), Japanese standard(JIS), International standard(ISO) and other standard fasteners, also can be made according to the requirement of customers.
The company product sales areas: mainland China/Europe/America/Japan/southeast Asia region.
The company's quality management system: ISO9001:2000 certification, ROHS certification, CE certification, etc.
The company's products usage: Automotive/Mould/Mechanical/Hydraulic/Wind Energy/PV/Elec-
tronic/Construction, etc.
FAQ
Q:How can I get a quotation?
A:Kindly provide us your details request (item No, style, logo, size, material, surface treatment, quantity etc.) the more detailed the better, leave us an inquiry or email to us and we will response prompty!
Q:How to get a free sample?
A:We can provide our existing similar samples for free to check the style and quality!
For sample with your own logo or design, mold fee will be charged base on specification.
A:We recommend you work with Alibaba Trade Assurance, it is very convenient. And T/T, PayPal, Western Union.… are all available.
Q:What's the process of order?
A:Sample:7-10 working days(Standard).
Bulk order.20-25 working days(Standard).
If you have any other questions, please feel free to contactus!