• hot melt insert nuts and embedded brass China manufacturer & exporter

    Parts4world Company Limited

    Custom turned parts & Brass knurled nuts
    Hot-melt insert brass nuts & Hot-pressed nuts
    Embedded copper nuts & Injection molding brass nuts
  • brass hex panel nust and jam nuts supplier

    Brass Hex Panel Nuts and Jam Nuts

    Hexagonal panel brass nuts
    Hexagonal brass thin nuts & low nuts
    Hexagonal brass custom jam nuts & pipe nuts
  • custom musical components and guitar brass button

    Custom musical components & guitar brass buttons

    Custom musical components & turned parts
    Custom guitar brass buttons & CNC turning parts
    CNC turning musical components & custom-made guitar brass buttons
  • tailor-made precision 316 stainless steel CNC turning parts

    316 Stainless Steel Threaded CNC Turned Parts

    304 stainless steel threaded connectors
    303 stainless steel CNC turning parts & threaded connectors
    316 stainless steel CNC turning threaded connectors and adapters
  • tailor-made precision screw machined products and turned parts factory

    Screw Machined Products & Custom Fasteners

    Screw machined parts & small turned parts
    Brass screw machined products & turned parts
    Threaded turning parts & custom-made fasteners & fixings
  • tailor-made 303 stainless steel knurled dowel pins supplier

    Custom 303 Stainless Steel Knurled Dowel Pins

    303 Stainless steel knurled dowel pins
    303 Stainless steel knurling pins & small turned parts
    303 Stainless steel knurled dowel pins & cylinder solid pins

Turned Parts & Screw Machined Products - Producing according to drawing !

China precision custom turned parts supplier & factory

Brass Turned Parts - Custom Fasteners & Fixings

Get started with our brass turning & screw machining services to see how we can fulfill all of your precision brass turned parts needs, custom machined parts, copper and brass screw machine parts, custom fasteners & fixings industry-specific requests.

China turning machining service supplier

Precision Automatic Lathe Machining & CNC Turning

P4W operate industry-leading screw machines, automatic lathe and CNC machine lathe turning units to manufacture high-value CNC turning parts and precision turned components, custom fasteners, and special fixings for a variety of industries.

China Precision aluminum turned parts exporter

Aluminum Turned Parts & CNC Machining Parts

We produce any volume request to fulfill your precision aluminum turned parts needs, custom machined parts, alu fixings, special alu fasteners demands. Whether you require any volume, our CNC turning service will easily meet your request.

Recent Works

Share your custom machined parts design drawing with specifications, and we will offer an economical solution to produce it. P4W experts are dedicated to performing quality screw machining operations to meet all of your custom turned parts, assembly fitting, special fixings & custom fastener needs.

Who We Are?

P4W is a highly reliable and flexible metalwork factory, we producted & exported various of precision custom parts, screw machine parts, CNC turning parts, custom fasteners, special fixings for many years. We work with a variety of industries to manufacture all of their custom fittings and turning components, meeting your from low to high volume custom machined parts requests.

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What We Do?

We manufacture custom turned parts according to drawing, especially to process the diameter of 3mm to 25mm bar turning parts by Swiss screw machine & automatic lathe. We exported various of custom turning components more than 20 years. P4W expert in processing various of precision turned parts, custom fasteners, fixings and screw machined parts, all turning components to meet ISO 9001.

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Where We Work?

P4W founded in HongKong, now we located in ShenZhen of China, we manufacture a variety of precision custom parts as per client’s drawing or sample, processing precision turning components with different materials (aluminum, brass, stainless steel, mild steel, free-cutting steel, plastic). Supply turning parts & custom fasteners, from simple assemblies to complex, relax-tolerance to tight-tolerance.

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Our Services

Aluminum Turned Parts

At P4W precision manufacturing workshop, we manufacture custom aluminium turned parts outer diameter up to 300mm. Especially turning parts outer diameter 3-25mm.

Aluminium alloy is the most widely used of the non-ferrous metals in the world; this is mainly due to its unique combination of properties. It is lightweight with excellent strength and elasticity. It also has excellent corrosion resistance and conductivity. Therefore, Aluminum is a very good material for turning parts.

Another attractive property of aluminium is its ability to be recycled easily and cost effectively.

It is be used in a large cross section of industries. All aluminum turning components are supplied complete in various grades, such as 6061, 6082, 7075..., these can be anodised in any colour required.

Our experienced engineers can work from either drawings or samples. Parts4World - Your premier source for all of your custom aluminum turned part , aluminum fasteners & special fixings needs!

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Copper or Brass Turned Parts

Our specialise in producing complex brass turned parts & custom components from a variety of grades of brass and copper. Our processing capacity up to outer diameter 300mm, Especially for OD 3-25mm brass turned parts & turning components. These brass turned parts are used in a wide range of applications, from plumbing to sub-sea operations, the parts produced are bespoke to your specifications and can be supplied plated in required.

Working from your drawings or samples, we produce your turned parts using the latest machining technology available. Using CAD CAM systems and off-line programing ensures optimum cycle times are achieved within budget. With our work scheduling software we deliver on time, every time!

If material is required to a certain specification, we can arrange production, machine the brass turned components and hold stock on a call-off basis, until your custom turning parts, custom fasteners & special fixings are required.

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Stainless Steel Turned Parts

Parts4world precision manufacturing workshop produce many kinds of custom precision 303, 304, 316 stainless steel turned parts and quickly earned a reputation for quality machining to high standards. Our factory manufacture stainless steel turned components up to 300mm Outer diameter– Specially good at 3-25mm OD stainless steel turned parts.

We produce stainless steel turned parts, custom stainless steel fasteners & special fixings for many industries including Petrochemical, Oil & Gas, Hydraulic, Brewing, Medical & Surgical instruments...

We are continuously improvements our quality procedures ensuring we deliver world class quality stainless steel turned parts, stainless steel screw machined products, and stainless steel fasteners & fixings.

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Free-cutting Steel Turned Parts

Free-cutting steel turned parts, also called high speed steel turned components, they are manufactured in China, machining custom metal turned parts from 3mm to 25mm using screw machine and automatic lathes.

We produce turned parts with flats, hexagons, through or blind holes and outer threads or internal threads in a single operation giving a better quality turned parts and screw machined product and substantial cost reductions. Our free-cutting steel turned parts, custom metal fasteners & special fixings are delivered on time and at competitive prices.

Parts4world also offer various surface treatments for metal turned parts, such as Heat Treatment, Chemical Blacking, Anodising, Zinc, Nickel, Chrome and Gold plating...

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Plastic Turned Parts

From small washers and screws to safety turning components, we can produce plastic turned parts up to 300mm outer diameter, Specially good at 3-25mm OD stainless steel turned parts. P4W precision manufacturing factory is the ideal choice for precision engineered plastic turned parts, plastic screw machine products, palstic fasteners & plastic fixings.

Today, the plastic material, such as Nylon, POM, more and more used in the field of plastice turned parts. A wide range of mechanical, physical and thermal properties are now covered by the many plastic material grades available, and their use continues to grow.

We process various grades of plastics turned parts, such as POM turned parts, Nylon turned parts, color in black or white...

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Custom Fasteners

Serving a wide array of industries from marine and mining to construction and electronics, our custom fasteners can be used for a broad variety of applications, including boilers, bridges, hydraulics, and machine tools. Offering the capability to work with a large number of materials up to 300mm in outer diameter, such as aluminum, brass, stainless steel, free-cutting steel, mild steel, plastics, nylon and POM. P4W can heat treat our custom fasteners to match our your unique requirements.

Offering a large variety of custom fasteners & special fixings: Pins, Nuts, Bolts, Studs, Screws, and washers. P4W can manufacture numerous styles of custom fasteners based upon your specifications.

Providing multiple finishing options ranging from nickel, brass, and zinc plated to chrome, color coated, and galvanized, our custom fasteners can be built to meet either English, British or metric standards.

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Overflow Inventory

As an added service, we stock overrun parts left after production orders. We hold these in inventory for customers who need a small number of screw machine parts and turned parts quickly. There is no obligation to purchase these custom turned parts, custom fasteners & special fixings, this is just another way that we work to serve our customers.

Parts4World - Your premier source for all of your custom screw machined parts, precision turned part, and custom fasteners & special fixings needs!

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Knurling Turned Parts

Knurling is a manufacturing process, typically conducted on a lathe, whereby a pattern of straight, angled or crossed lines is rolled into the material, such as straight knurled turned parts, diamond knurled turned parts.

The operation is performed for producing indentations on a turned part of a workpiece. Knurling allows hands or fingers to get a better grip on the knurled object than would be provided by the originally smooth metal surface. Occasionally, the knurled pattern is a series of straight ridges or a helix of "straight" ridges rather than the more-usual criss-cross pattern.

Knurling can also be used when a turned component will be assembled into a low precision component, for example a metal pin into a plastic molding. The outer surface of the metal pin is knurled so that the raised detail "bites" into the plastic irrespective of whether the size of the hole in the plastic closely matches the diameter of the pin. Tool handles, mechanical pencils, the grips of pistols, barbell bars, and the control knobs on electronic equipment are frequently knurled.

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Threaded Turned Parts

There are various methods for generating screw threads. The method chosen for any one application is chosen based on constraints—time, money, degree of precision needed (or not needed), what equipment is already available, what equipment purchases could be justified based on resulting unit price of the threaded turned part (which depends on how many threaded turning parts are planned), etc.

In general, certain thread-generating processes tend to fall along certain portions of the spectrum from toolroom-made turned parts to mass-produced turned parts, although there can be considerable overlap. For example, thread lapping following thread grinding would fall only on the extreme toolroom end of the spectrum, while thread rolling is a large and diverse area of practice that is used for everything from microlathe leadscrews (somewhat pricey and very precise) to the cheapest deck screws (very affordable and with precision to spare).

Threads of metal fasteners and turned parts are usually created on a thread rolling machine. They may also be cut with a lathe, tap or die. Rolled threads are stronger than cut threads, with increases of 10% to 20% in tensile strength and possibly more in fatigue resistance and wear resistance.

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