China Manufacturer for Square Dock Washers - flat washer/spring washer – Tiancong Detail:
Surface treatment
We have our own surface treatment plant, and the thickness of zinc layer meets the standard requirements. We can make authoritative inspection reports, including surface treatment such as hot galvanizing, Dacromet, electro galvanizing, boiling black, etc.
The outer hexagon screw is a matching nut used to fasten and connect two connected parts with through holes and components. Hex head screws are commonly used bolts. It is more important to use Class A and Class B outer hexagon. In addition, it is often used in the occasion of high assembly accuracy, large impact, vibration or cross rate load. Grade C outer 66 screws are used in situations where the surface is rough and the assembly accuracy is not required.
Product standards
GB series, Q standard series, DIN German standard series, IFI American standard series, BS British standard series, JIS Japanese standard series, ISO international standard series, etc.
One of the standards for hexagon bolts is the level standard, which is divided into 4.8 and 8.8. These two levels are used more frequently in the market. Especially Grade 4.8 outer hexagon bolt. Because it is much cheaper than grade 8.8 hex bolts. Of course, it is more widely used. But for products with high requirements. Because of its high requirements in hardness and other aspects.
Material
The material comes from a high-quality steel manufacturer, which can issue an authoritative material inspection report, including Q235, 35 #, 45 #, 345B, 40Cr, 35CrmoA, stainless steel 201, 304 and other special materials.
This requires the use of grade 8.8 hex bolts. Grade 8.8 outer hexagon bolt is harder in terms of hardness and screw torque. It is safer to use the product. Faster and more stable.
Exported countries or regions
Poland, Russia, Algeria, Egypt, Ghana, Kuwait, the United Arab Emirates, Kazakhstan, Malaysia, Pakistan, the Philippines, South Korea, Myanmar, Thailand, Ukraine, Syria, India, the United States, Turkey, Brazil, Sri Lanka, Norway, etc.
Product parameters
| Nominal Diameter | Φ2 | Φ2.2 | Φ2.5 | Φ3 | Φ3.5 | Φ4 | Φ5 | Φ6 | Φ7 | Φ8 | Φ10 | Φ12 | Φ14 | Φ16 | Φ18 | Φ20 | Φ22 | |
| d | min | 2.1 | 2.3 | 2.6 | 3.1 | 3.6 | 4.1 | 5.1 | 6.1 | 7.1 | 8.1 | 10.2 | 12.2 | 14.2 | 16.2 | 18.2 | 20.2 | 22.5 |
| max | 2.4 | 2.6 | 2.9 | 3.4 | 3.9 | 4.4 | 5.4 | 6.5 | 7.5 | 8.5 | 10.7 | 12.7 | 14.7 | 17 | 19 | 21.2 | 23.5 | |
| n | Nominal Size | 0.9 | 1 | 1 | 1.3 | 1.3 | 1.5 | 1.8 | 2.5 | 2.5 | 3 | 3.5 | 4 | 4.5 | 5 | 5 | 6 | 6 |
| max | 1 | 1.1 | 1.1 | 1.4 | 1.4 | 1.6 | 1.9 | 2.65 | 2.65 | 3.15 | 3.7 | 4.2 | 4.7 | 5.2 | 5.2 | 6.2 | 6.2 | |
| min | 0.8 | 0.9 | 0.9 | 1.2 | 1.2 | 1.4 | 1.7 | 2.35 | 2.35 | 2.85 | 3.3 | 3.8 | 4.3 | 4.8 | 4.8 | 5.8 | 5.8 | |
| h | Nominal Size | 0.5 | 0.6 | 0.6 | 0.8 | 0.8 | 0.9 | 1.2 | 1.6 | 1.6 | 2 | 2.2 | 2.5 | 3 | 3.5 | 3.5 | 4 | 4 |
| max | 0.6 | 0.7 | 0.7 | 0.9 | 0.9 | 1 | 1.3 | 1.7 | 1.7 | 2.1 | 2.35 | 2.65 | 3.15 | 3.7 | 3.7 | 4.2 | 4.2 | |
| min | 0.4 | 0.5 | 0.5 | 0.7 | 0.7 | 0.8 | 1.1 | 1.5 | 1.5 | 1.9 | 2.05 | 2.35 | 2.85 | 3.3 | 3.3 | 3.8 | 3.8 | |
| H | min | 1 | 1.2 | 1.2 | 1.6 | 1.6 | 1.8 | 2.4 | 3.2 | 3.2 | 4 | 4.4 | 5 | 6 | 7 | 7 | 8 | 8 |
| max | 1.2 | 1.4 | 1.4 | 1.9 | 1.9 | 2.1 | 2.8 | 3.8 | 3.8 | 4.7 | 5.2 | 5.9 | 7.1 | 8.3 | 8.3 | 9.4 | 9.4 | |
| per 1000 units ≈ kg | 0.033 | 0.05 | 0.053 | 0.11 | 0.12 | 0.18 | 0.36 | 0.83 | 0.93 | 1.6 | 2.53 | 3.82 | 6.01 | 8.91 | 9.73 | 15.2 | 16.5 | |
| Nominal Diameter | Φ24 | Φ27 | Φ30 | Φ36 | Φ39 | Φ42 | Φ45 | Φ48 | Φ52 | Φ56 | Φ60 | Φ64 | Φ68 | Φ72 | Φ80 | Φ90 | Φ100 | |
| d | min | 24.5 | 27.5 | 30.5 | 36.5 | 39.5 | 42.5 | 45.5 | 49 | 53 | 57 | 61 | 65 | 69 | 73 | 81 | 91 | 101 |
| max | 25.5 | 28.5 | 31.7 | 37.7 | 40.7 | 43.7 | 46.7 | 50.5 | 54.5 | 58.5 | 62.5 | 66.5 | 70.5 | 74.5 | 82.5 | 92.5 | 102.5 | |
| n | Nominal Size | 7 | 7 | 8 | 10 | 10 | 12 | 12 | 12 | 14 | 14 | 14 | 14 | 14 | 14 | 14 | 14 | 14 |
| max | 7.25 | 7.25 | 8.25 | 10.25 | 10.25 | 12.25 | 12.25 | 12.25 | 14.25 | 14.25 | 14.25 | 14.25 | 14.25 | 14.25 | 14.25 | 14.25 | 14.25 | |
| min | 6.75 | 6.75 | 7.75 | 9.75 | 9.75 | 11.75 | 11.75 | 11.75 | 13.75 | 13.75 | 13.75 | 13.75 | 13.75 | 13.75 | 13.75 | 13.75 | 13.75 | |
| h | Nominal Size | 5 | 5 | 6 | 6 | 6 | 7 | 7 | 7 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 |
| max | 5.2 | 5.2 | 6.2 | 6.2 | 6.2 | 7.25 | 7.25 | 7.25 | 8.25 | 8.25 | 8.25 | 8.25 | 8.25 | 8.25 | 8.25 | 8.25 | 8.25 | |
| min | 4.8 | 4.8 | 5.8 | 5.8 | 5.8 | 6.75 | 6.75 | 6.75 | 7.75 | 7.75 | 7.75 | 7.75 | 7.75 | 7.75 | 7.75 | 7.75 | 7.75 | |
| H | min | 10 | 10 | 12 | 12 | 12 | 14 | 14 | 14 | 16 | 16 | 16 | 16 | 16 | 16 | 16 | 16 | 16 |
| max | 11.8 | 11.8 | 14.2 | 14.2 | 14.2 | 16.5 | 16.5 | 16.5 | 18.9 | 18.9 | 18.9 | 18.9 | 18.9 | 18.9 | 18.9 | 18.9 | 18.9 | |
| per 1000 units ≈ kg | 26.2 | 28.7 | 44.3 | 67.3 | 71.7 | 111 | 117 | 123 | 182 | 193 | 203 | 218 | 228 | 240 | 262 | 290 | 318 | |
Our Advantages
1. Professional online service team, any mail or message will reply within 24 hours.
2. We have a strong team provide wholehearted service to customer at any time.
3. We insist on Customer is Supreme, Staff toward Happiness.
4. Put the Quality as the first consideration.
5. Advanced production equipment, strict quality testing and control system to make sure superior quality.
6. Good quality: good quality can be guaranteed, it will help you keep the market share well.
Product detail pictures:
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Our aim would be to fulfill our shoppers by offering golden company, very good value and good quality for China Manufacturer for Square Dock Washers - flat washer/spring washer – Tiancong, The product will supply to all over the world, such as: Swiss, Israel, Stuttgart, We strive for excellence, constant improvement and innovation, is committed to make us the "customer trust" and the "first choice of engineering machinery accessories brand" suppliers. Choose us, sharing a win-win situation!
By Dora from Eindhoven - 2018.11.04 10:32
Product variety is complete, good quality and inexpensive, the delivery is fast and transport is security, very good, we are happy to cooperate with a reputable company!
By Priscilla from Australia - 2017.08.21 14:13
