CNC Screw Machining Services

High-quality custom CNC screw machining services for the creation of high-performing components and parts

Cater to needs for customized machine screw parts to deliver optimal efficiency and quality

Custom CNC Machining Screw Services

Screw machining is the process of rapidly rotatory lathes whittling metal to the required size and shape. There are two main types of screw machines, that is, Turret and Swiss. Both automatic and CNC Swiss screw machines allow for more precise work as a result of their tight configuration and tooling. Once properly programmed and oriented, the machining process is relatively cost-effective for long-term production runs. In general, however, Swiss screw machines outperform Turret-style machines in their capability to conduct more precisely relying on their additional types of tooling fixtures.

Runsom Precision is committed to providing high-quality screw machining services for customers around the world with high-performing and durable parts and components. With our expertise, equipment, and experience, we are proficient in creating custom screw parts with the certain material you require, the specific specifications you demand, and the tight tolerance you need.

How Does A Screw Machine Work?

CNC screw machining involves a process of turning various metals, plastics, or other materials into large quantities of essential machine parts and components.

Screw machines are used to cut through metal quickly and can perform multiple options and operations simultaneously. The tools on the screw machine carve the workpiece from multiple sides, utilizing mechanical levers, changeable gears, and hand-cut steel cams to determine the spindle speed for forming and producing special bolts, nuts, components, and assemblies that exactly match the required specifications.

Types of Automatic Screw Machining Equipment

Screw machining equipment is typically characterized by five essential parts: the headstock, one to eight spindles, front and rear slides, the turret, and the base.

This machine is designed in different variations to meet different application requirements. Two types of well-known automatic screw lathes are shown below:

Swiss Screw Machines

There are two main types of Swiss screw machines: CNC-based screw machines and automatic screw machines.

The automatic screw machine is characterized by the use of a collet, which holds the workpiece in place, while the disc cam moves the tool in a radial motion. Very tightly positioned spindle collects help avoid misaligned debris during machining.

Swiss lathes function by utilizing a sliding headstock and guide bushing. The workpiece is fastened on the headstock with a collet and rotated. As the headstock moves forward and backward, the cutting tool moves over the workpiece so that it is cut to the desired diameter and length.

Swiss Screw Machines
Turret Style Machines

Turret Style Machines

Turret lathes consist of a rotating turret that houses the tools and the workpiece is mounted on a vertical ram that slides into the lathe whereas the Swiss-style works by mounting the component to be manufactured on a rotary slide.

The turret holds the held part until the entire sequence of operations is performed, at which point the turret releases the part and it drops into the bottom of the machine. Although the means of operation of these screw machines are different, their production output is basically the same.

Advantages of Automatic Screw Machining

CNC machining screw offers lots of advantages over other manufacturing methods, including:

Automatic Screw Machining

Screw Manufacturing Process

Screw Manufacturing Process

While the screw machining process differs in the part specification and production volume, the operation flow is generally the following steps.

  • The workpiece (usually a rod or bar stock) is locked into the machine and rotated.
  • A spindle holding the tooling moves over the workpiece, molding it to the required size and shape.
  • The workpiece passes through each spindle position until it reaches the specified dimensions.
  • Cut-off tools cut off the formed part from the rest of the blank.
  • Finishing equipment, such as deburring equipment, removes excess debris and material to sharpen edges and smooth surfaces.

Our Screw Machining Capabilities

Runsom Precision is specialized in manufacturing screw machined parts from numerous variety of materials ranging from metals to plastics. The automatic feeding process of our CNC screw machines performs continuous operations and high efficiency. Moreover, the dual-spindle design enables us to perform various secondary operations within the same cycle, forming many part features.


Precision Swiss CNC lathes
CNC Multi-axis machining centers
Multiple-spindle cam automatics


Plating, Coating, Heat Treating, Painting, Anodizing, Bead Blasting


Machining Process

Milling, Turning, ID & OD Grinding, Internal & External Broaching, Drilling, Thread Rolling, Tapping, Slotting

Lead Time

As fast as 3 days, but it will be finally determined by part complexity and order quantity.


It's determined by the machine and part geometry.


.062 to 8 in


Up to 36 in

Why Choose Us?

With our expertise, experience, and equipment, Runsom Precision offers high-quality custom machining services for various applications across broad industries.



We have been in the precision CNC machining business for over ten years and delivered countless custom screw parts for global customers, so there are virtually no too complex or large projects for us.

cutting tools


Advanced equipment like CNC machines and CNC Swiss screw machines that are equipped with multiple tools that perform different cutting operations sequentially allow for making any type of screw components.



Our team of engineers, machinists, and technicians is highly skilled and proficient in customizing screw parts with intricate geometries and features that fit your crucial specifications and special requirements.

Ready for Your Project with A Free Quote?

Turn to experts at Runsom Precision if you are looking for a reliable manufacturer with exceptional machining capabilities and rich experience. We are full of skills, knowledge, and expertise to deal with your order and deliver the best result even beyond your expectation. To learn more about our services and products, please contact us directly or submit an RFQ online to work with us today!

Applications of Screw Machining

The area of applications of parts and components fabricated by CNC machining screw is broad. They are commonly found in the following fields:

1. Agriculture

Our fasteners are critical to the integrity of crop handling and field irrigation systems. These machines require strong fasteners to remain consistent under high pressure.

3. Automotive

Part of the basic and specialized automotive fasteners we produce include plated U-bolts for suspension systems, low-friction square thread jacks for power transmission, and engine bolts

2. OEM

We offer a wide variety of fasteners for OEM customers such as standard and metric fasteners, O-rings, custom screw machine tooling, brass fittings, and other options.

4. Transportation

Huck fasteners and blind rivets for trailers and trucks reduce forces from road vibrations.

Screw Machined Parts

Screw Machined Parts






Panel Screws


Hydraulic Poppets


Electronic Connectors