About this item
- Material: Carbon steel, zinc finish, high hardness, corrosion resistance, wear resistance, smooth and bright appearance, and strict standard workmanship so that it can be used for a long time.
- Features: The external tooth washer applies spring force between the fastener head and the base material, generating more friction and rotational resistance. The external tooth structure of the washer can evenly distribute the tightening force of the bolt to the connected parts. Hold the gasket firmly against the substrate.
- Easy Installation: The external tooth washers can be fixed on the shaft with simple pressure or rotation during installation. Installation is simple and convenient.
- Application: It is widely used in various screw fastening applications and is suitable for various mechanical, electronic, construction, automotive, and other connecting equipment and industrial production industries.
1. Bolts: hex bolt, hex cap screw, heavy hex bolt, heavy hex structural bolt, carriage bolt, hex flange bolt, square nuts, plow bolt, step bolt, shoulder bolt, tower bolt, timber bolt, guardrail bolt, hex socket cap screw.
2. Nuts: hex nut, heavy hex nut, square nut,hex flange nut, hex nylon lock nut, slotted nut, eye nut, hex cap nut, caps nut.
3. Washers: flat washer/ plain washer, fender washer, taper bolt, square washer,
helical spring-lock washer, hardened steel washers, external / internal tooth lock washer
Product Equipment
Test Equipments
Strictly complies with ISO9001:2008 system, Each production process be well managed through self inspection, routing inspection by our workers. Our test equipments include: tensile machines, hardness tester, salt spray tester, Image measurement instrument, caliper, GO & NO-GO guage, etc.
Test Reports
Test and issue Material
Test Report and Inspection Report by Hengrui before shipment to guarantee the product quality. The test report from the third parts are also avaliable as customer's requirments.
Package
* Strong Technical support: our engineer in fastener industry for about 20 years are here for you.
* With 50 friend factories support: we can customize many non-standard fasteners according to the drawings or samples, as well as turning parts and stamping parts.
* 10 years' experience in international trading industry.
* Our company policy: Product quality>lead time>pricing, welcome the customers which have the same belief to inquiry to us!
We promise to provide high-quality service to all customers and we look forward to cooperating with you!
FAQ
| 1.Why choose us? |
Rich experience: we have more than 10-years staff to support all technical issues and sales issues.
Reputation: many of our customer are the project customers, especially in Municipal Projects. |
| 2.What's MOQ? |
| 900kg/size for bolt, 500kg/size for nut and washer |
| 3.What's the payment? |
| By T/T, 30% down payment, and balance before shipment |
| 4.What is the delivery time? |
| 30-45 days in generally, the precise delivery time based on the detailed order |
| 5.How to guarantee the quality? |
For non standard products, the samples to be sent to customer before mass production.
and the material test report and inspection report will be sent to customer before shipment. |
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