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Customized countersunk fastening screw

Customized countersunk fastening screw

    Payment Type: L/C,T/T
    Terms of Trade: FOB,CFR,CIF
    Min. Order: 100 Piece/Pieces
    Packaging: Export cartons, pallets, wooden cases, Polybags or as per client's request
    Productivity: 50000pcs per month
    Brand: UniSite
    Transportation: Ocean,Land,Air
    Place of Origin: China mainland(zhejiang)
    Supply Ability: 50000pcs per month
    Certificate: ISO9001,TSI16949

Basic Info

Model No.: USM-190

Dimension: As Per Drawing/order

Application: Agriculture


Supply Chain Process: PPAP SA Ⅲ

Certificate: ISO,TSI16949

Finishing Surface: Machined Surface With Tectyl, Other Acc. To Reques

Mould Time: 25-45days

Material: Aluminum,steel,zinc, Brone, Brass, Platic Etc

Processing: Casting ,die Casting, Forging, Stamping, Machining

Cap Screw Fastener: Countersunk Fastening Screw

Product Description

Fasteners can also be used to close a container such as a bag, a box, or an envelope; or they may involve keeping together the sides of an opening of flexible material, attaching a lid to a container, etc. There are also special-purpose closing devices, e.g. a bread clip. Fasteners used in these manners are often temporary, in that they may be fastened and unfastened repeatedly.

Cap screw fastenerFastener parts


Material for product

Aluminum,steel etc






Casting, forging, machining

Finishing surface

Machined surface with tectyl891, anodize, polishing, nickel plating, zinc plating and chrome plating, oxidation, powder coating, painting, etc.


material, construction, dimension, heat treatment, hardness, NDT



It usually consists of the following 11 categories of parts:
1. Bolt: consisting of the head and the screw (externally threaded cylinder) for a class of two-part fastener is required and the nut for fastening two parts with hole. This connection type called bolt connection. As to unscrew the nuts from the bolts, so that the two parts can be separated, so bolting belongs detachable connection.
2. Stud: No head, only both ends of the threaded fastener packed a class. Connection, it must be screwed into the end piece with the threaded hole in the other end with a hole through the parts, and then screw on the nut, even if the two fastening parts into a whole. This connection form is called stud connection, also belongs to the detachable connection. Is mainly used to connect one of the larger part thickness, requires compact, or due to frequent disassembly, should not be used bolted occasions.
3. Screw: is composed of a class and the screw fastener head of two parts, according to the purpose can be divided into three categories: machine screws, set screws and special screws. The main parts for machine screws a tight set screw hole, and a fastening between the parts with hole, no mating nut (This connection form is called the screw connection and also a detachable connection; and to be and the nut for fastening two parts with a hole between the connections.) set screw is mainly used for fixing the relative position between the two parts. Special purpose screws for example, eye bolts and other parts used for lifting.
4. Nut: with an internal thread hole, general shape is substantially flat hexagonal column, there Chengbian square cylindrical or flat cylindrical, with bolts, studs or machine screws for fastening two parts, making a whole.
5. The self-tapping screws: machine screws similar, but the screw threads for special self-tapping screw threads. For fastening two thin metal components, making it a whole, the members need to make a small hole in advance, because of this screw has high hardness, can be screwed directly into the hole member, so that members the internal thread is formed in response to
6. Wood screws: machine screws and is also similar, but the screw threads on the dedicated wood screw threads, can be directly screwed into the wood element (or part), and for a metal band through hole (or non-metallic) Part of a wood elements fastened together. This connection also belongs detachable connection.
7. Gasket: oblate shape of a ring-type fasteners. Disposed between the bolts, screws or nuts with a support surface connected to the part surface, plays an increasing part is connected contact surface area, reducing the pressure per unit area and the surface of the connection member is protected from damage effects; another elastic washer, also plays a role to prevent the nut loose back.
8. Collar: for shaft mounting slots or holes slot machines, equipment or parts to play to prevent the shaft hole on the left and right to move in.
9. Pins: mainly for positioning parts, and some parts are also available for connecting fixed parts, transmission power or other fastener locking purposes.
10. Rivet: by a class of the fastener head and shank of two parts for fastening two parts with through holes (or members) to become a whole. This connection form is called rivet connection, referred to as riveting. Not the case with detachable connection. Because the two parts together to make the connection separately, you must destroy the rivet part.
11. The assembly and connection deputy: assembly is a combination of the supply of a type fasteners, as will be some kind of machine screws (or bolts, screws confession) and the flat washers (or spring washers, lock washers) combination of supply; connection Vice refers to some kind of special bolts, nuts and washers supplied by a combination of a type fasteners

Our service

Besides above the general specifications, we can also supply some specific die casting and other similar steel structure as clients' requirements.

Package and shipping

Export cartons, pallets, wooden cases, Polybags

container package and container transportation

Photos of our Countersunk fastening screw

Cap Screw FastenerCountersunk Fastening ScrewHex Cap Fasteners Screw for saleHex Cap Fasteners Screw

How to contact us?

Send your Inquiry Details in the Below, Click "Send" Now!

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UniSite group was established in 2008 in Ningbo - Chinese second largest port, dredging relevant products manufacturing & supplying since 2005, that is characterized by visible leadership, vitality, innovation, long-term vision and a sound financial position.

As an international partner, we are specialized in providing comprehensive service of dredging, marine engineering, municipal engineering, mechanical engineering, construction machinery, agricultural machinery, port hoisting machinery, metallurgy, automobile, chemical, marine machinery, oilfield projects.

The group has a perfect managing system and our staff who are professional in technology are committed, passionate, efficient. Thanks to the knowledge, the experience and the skills of our work team, we are able to offer our client best possible and most sustainable solutions to their requirement. We are one of the leading steel parts and service providers for dredging and marine engineering in China.

Our team own more than 200 staff, 25 staff in head office and more than 175 staff in plants

Our products distributed in Europe, the Middle East, Southeast Asia, Australia, North & South America and other countries and regions.

Whether high or low volume production, large or small parts, OEM or our brand, UniSite can save your time & money and offer our client best possible and most sustainable solutions to their requirement.


1)UniSite's first core activity: serve for dredging and marine projects

Provide service and relevant parts for dredgers, including dredger construction, repairing and maintenance.

Provide items for dredging, land reclamation, offshore, marine engineering, piling works, municipal engineering, oilfield projects and environmental remediation projects.

Product range:

1. Steel Structures and Pipes

2. Casting and Pump parts

3. Machining Parts whatever big or small

4. Piling and Parts

2) UniSite's second core activity: serve for machinery and automobile projects

Provide service and relevant parts for mechanical engineering, construction machinery, agricultural machinery, port hoisting machinery, metallurgy, automobile, chemical, marine machinery.

Product range:

1. Big Machining(machining center, boring and milling, lathe)

2. Small Machining(cnc, milling, grinding)

3. Casting (sand, investment)

4. Die casting

5. Forging

6. Stamping and Bending

Product list:

Service Key Customers in the following fields:

Machinery Products (construction parts, agricultural parts, heavy parts, hoisting parts, valve parts, pump parts, machine parts like Wind Turbine Generate System Hub, Wind Power Bearing Block, Punching Machine Sliding Block, Punching Machine, diesel power generator base, die casting machine base, injection molding machine base, punch, tank, accumulators parts etc.)

- Auto Products (engine parts, transmission parts, brake system parts, etc.)

- Shipping building Products(deck machinery etc.)

- Medical Products (medical components etc.)

- Oil Products (structure, gear, transmission etc.)


With about 10 years' experience, now our products and service are involved in many big projects all over the world. Below is a list.

1)Palm islands construction, World thousand islands construction, Australian coastline and port expansion, Gladstone project construction, Brisbane airport project construction, the Vietnamese government's port expansion, Panama coastline expansion, Railway tunnel Schuman-Josaphat construction(Belgium), World's first formal floating sea restaurant construction(Darling Harbour, Sydney), New Suez Canal project construction, Municipal tunnel projects construction(Alger)--

2)Produced and provided many small and big machining parts for top machinery clients(construction, agriculture, oil equipment), like ZPMC, Kalma, Nov, SNH

Produced and supplied many auto parts and mechanical control parts, indirectly supplied to Ford, BMW, Chinese brand etc.

Production and equipment:

Equipment list:

1. pipeline production equipment

2. machining equipment

(big horizontal CNC boring and milling machine, large CNC machining center, high-precision boring machine, CNC horizontal machining centers, CNC lathes, large planer milling machines, grinding machines, drilling machines, tuning machines, die casting machines, forging machines, punching machines, cutting machines, bending machines , plasma cutting machine, and other peripheral equipment, including three coordinates measuring instrument, projectors, optical instrument, hardness tester, gas tightness tester, roughness tester UT tester and other testing equipment)

3. welding equipment

4. bending press equipment

5. rolling equipment

6. shears equipment

7. CNC plasma cutting equipment

8. advanced paint room and equipment

9. auxiliary equipment

10. Technology and Quality:

Offering our client best possible and most sustainable solutions to their requirement. Production procedure

Step1: Drawing and technical requirement analysis, production lofting;

Step2: Material cutting, trimming, groove, cleaning, bending, rolling, dimension & NDT inspection

Step3: From part assemble to whole assemble with accurate template and platform, dimension & NDT inspection, welding, dimension & NDT inspection;

Step4: Casting, forging, stamping, machining if necessary

Step5: Final dimension & NDT inspection;

Step6: Surface treatment;

Step7: Package, Loading and Lashing when delivery;

UniSite have a perfect managing system and quality control system which from initial work.

ISO9001-2008/CCS; BV manufacturer capability qualification.


Quality, health, safety and environment (QHSE)

Production guidelines

In-house safety training to our staff

Checking all the production equipment periodically

Preventing pollution, accidents and health hazards, auditing

Thanks to the knowledge, the experience, the skill and the advanced technology of the group, we are able to offer our client best possible and most sustainable solutions to their requirement.

Company Info

  • Company Name: UniSite Group
  • Representative: Andrew Yu
  • Product/Service: Machining Parts , Casting Parts , Forging Parts , Stamping Parts , Die Casting Parts , Machinery Parts
  • Capital (Million US $): 150,000RMB
  • Year Established: 2008
  • Total Annual Sales Volume (Million US $): US$10 Million - US$50 Million
  • Export Percentage: 81% - 90%
  • Total Annual Purchase Volume (Million US $): Below US$1 Million
  • No. of Production Lines: 2
  • No. of R&D Staff: 5 -10 People
  • No. of QC Staff: 11 -20 People
  • OEM Services Provided: yes
  • Factory Size (Sq.meters): 10,000-30,000 square meters
  • Factory Location: Dagang industry park, Beilun district, Ningbo
  • Contact Person: Mr. Kevin Mei
  • Tel: 86-0574-87053650
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