Audited Supplier
Fastener Information
1. Bolt: A fastener consisting of two parts, head and screw (cylinder with external thread), used in conjunction with a nut to fasten two parts with through holes. This type of connection is called bolted connection. If the nut is unscrewed from the bolt, the two parts can be separated, so the bolt connection is a detachable connection.
6. Wood screw: it is also similar to machine screws, but the thread on the screw is a special wood screw thread, which can be directly screwed into the wooden member (or part), and is used to fasten a metal (or non-metal) part with a through hole to a wooden member. This connection is also a detachable connection.
7. Washer: A type of fastener in the shape of an oblate ring. Placed between the supporting surface of the bolt, screw or nut and the surface of the connected part, it has the function of increasing the contact surface area of the connected part, reducing the pressure per unit area and protecting the surface of the connected part from being damaged; Another type of elastic washer can also play a role in preventing the nut from loosening.
8. Baffle ring: for installation in the shaft slot or shaft hole slot of the machine and equipment, it plays the role of preventing the parts on the shaft or hole from moving left and right.
9. Pin: mainly for parts positioning around, some can also be used for parts connection, fixed parts, power transmission or locking fasteners.
10. Rivets: A type of fastener consisting of two parts of the head and the nail rod, used to fasten and connect two parts (or components) with holes to make it a whole. This connection form is called rivet connection, referred to as riveting. It is a non-detachable link. Because if the two parts connected together are separated, the rivets on the parts must be destroyed.
11. Components and connecting pairs: Assemblies are a type of fasteners that are supplied in combination, such as machine screws (or bolts, self-supplied screws) and flat washers (or spring washers, locking washers); Connection pair refers to a special bolt, nut and washer combination supply of a class of fasteners, such as steel structure with high strength large hexagon head bolt connection pair.
12. Welding nails: A heterogeneous fastener composed of a nail rod and a nail head (or no nail head), which is fixed on a part (or component) by welding method so as to connect with other parts.
Nylon Insert Lock Nuts: Nuts that rely on nylon washers to lock are called nylon lock nuts, often referred to as nylon nuts in the industry. It is mainly used in conjunction with threaded screws or bolts and other connecting parts. After locking, the nylon ring will deform and fill the gaps between the connecting parts at both ends, thus playing a locking role.Nylon Insert Lock Nuts Drawing
Nylon Insert Lock Nuts Specification
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| ,Product Grade: ≤ M 16: Class A > M 16: Class B ,Material: Steel, Property class: ≤ M39: 5,6*,8,10; > M39: By Agreement. Standard DIN 267-4 * Only for nuts with fine thread Material (insert): Nonmetallic, e.g. ployamide |
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| ,* In the case of sizes of M110 or more, the hexagon edges may be radiused. ,This standard has been replaced by ISO 4032, ISO 8673 and ISO 8674 ,Material: a)Steel, Property class: ≤M2.5: 6; M3~M39:6,8,10; > M39:subject to agreement. Standard DIN 267-4 b)Stainless steel, Property class: ≤M39: A2-70, A4-70; >M39: subject to agreement. Standard DIN 267-11 c)Non-ferrous metal, Property class: subject to agreement. Standard DIN 267-18 |
2, fastener product technical conditions standards. It mainly includes product tolerances, mechanical properties, surface defects, surface treatment, product testing standards and corresponding specific provisions.
3, screw product acceptance inspection, marking and packaging standards: specify the product factory acceptance inspection project qualified quality level and sampling plan, as well as product marking methods and packaging requirements.
4, standard parts, fasteners, screws, screws marking method standard: specify the product complete marking method and simplified marking method content.
5, the standard of other aspects of fasteners: such as the standard of fastener terminology, the standard of fastener product weight, etc.
Fasteners are a kind of mechanical parts used for fastening connections and are widely used. In all kinds of machinery, equipment, vehicles, ships, railways, Bridges, buildings, structures, tools, instruments, meters and supplies, you can see a variety of fasteners.
It is characterized by a wide variety of specifications, different performance uses, and the degree of standardization, serialization, and generalization is also very high. Therefore, some people also refer to a class of fasteners that have national standards as standard fasteners, or referred to as standard parts. Fasteners are the most widely used mechanical base parts.
With China's accession to WTO in 2001, it has stepped into the ranks of major international trade countries. A large number of our fastener products are exported to countries around the world, and fastener products from countries around the world are also constantly pouring into the Chinese market.
Hebei Leicheng Electric Power Technology Co., Ltd. is a professional engaged in power transformers, high and low voltage switchgear and related products R & D, production, sales and service of science and technology enterprises.
Since its establishment, the company has been committed to the road of professional development. With strong technical force, advanced equipment at home and abroad, innovative concept and rich manufacturing experience, has passed ISO9000 certification, the use of CAD, to provide customers with suitable regional characteristics of environmental protection, energy saving, low-carbon, high-quality products to meet the basic requirements of the market and different customers.
Products are also exported to Central Asia, Africa, Southeast Asia, the Middle East, South America and other countries and regions.
You can rest assured that the packaging of the product, as the last link we strictly control!
Certificate
FAQ:
Q: Are you a Manufacturer, factory or Trading company ?
A: Yes, We are engaging in the research and development, production and operation of transformer for over 10 years.
Q: What's your warranty terms?
A: We offer 12 months warranty time.
Q: Production Time?
A: In general, it take 4~6weeks and it depend on the different style.
Q: What's your payment terms?
A: Pay by T/T and L/C is acceptable.
Q: How do you conduct quality control in your factory?
A: We implement 100% QC inspection to ensure every product is qualified. We have over 10 times QC inspections during the manufacturing process from raw material to the final products.Each of our unit has 3C certificate. If you need any other Certificate, we can help you to apply it.
Q: Do you have the products in stock?
A: Normally no. All our products produce depending to your order quantity.
Q: What should provide to make custom transformer ?
A: Technical drawing and technical specification document are the best, or you can tell us some details technical specification date as below "Quotation and Ordering Required Information".
Q: Could I have your catalog and price list for trial order in MOQ quantity?
A: All of our products are showing on Made-in-China or official website, you are always welcome to ask us to get more information directly.
At present, the company mainly produces high voltage/low voltage distribution cabinets, prefabricated substations, distribution transformers, high voltage/low voltage switches and other products.
Various power fittings and accessories, such as transformer support frame, cable hoop, bolt, wire clamp, cross arm and other products are numerous.
Steel products, such as H-shaped steel, channel steel, steel pipe, Angle steel, hot dip galvanized iron wire, etc., are also our main products!
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