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Set Screw Manufacturer | Set Screw Factory in China | OEM/ODM

Zeyao Fastener Manufacturer

As a professional fastener manufacturer with 19 years of experience, Zeyao is a screw manufacturer truly focused on manufacturing capabilities. We specialize in the R&D, production, and supply of non-standard screws, nuts, and specialty fasteners. With over 160 advanced production lines and a monthly output exceeding ten million pieces, we provide reliable, high-quality screw solutions to customers worldwide. Whether you are a wholesaler or a brand customization customer, we offer one-stop service. We continuously provide stable, controllable, and customizable screw manufacturing solutions for global OEM customers, industrial buyers, and engineering projects.

160+Production equipment

It includes cold heading equipment, high-precision tapping machines, secondary processing and end-finish customization equipment, CNC machining, testing and quality control equipment, etc.

19+Production experience

Founded in 2006, the company has 19 years of R&D and production experience and focuses on the production and manufacturing of non-standard fasteners.

3500+Partners

Our partners include OEM manufacturers, industrial equipment companies, engineering project owners, and fastener distributors.

3000㎡+FLOOR SPACE

The production area layout is scientifically planned around the fastener manufacturing process to ensure efficient connection between raw material processing, production, testing and packaging.

Soft Tip Set Screw
Type: Soft Tip Set Screw
Product Type: Surface-Friendly Fastener
Application: Aluminum Profiles, Machinery Parts, Fixtures, Precision Assemblies
Material: Stainless Steel, Carbon...
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Nylon Tip Grub Set Screw
Type: Nylon Tip Grub Set Screw
Product Type: Soft Tip / Non-Marring Set Screw
Drive Type: Hex Socket
Application: Machinery, Aluminum Profiles, Instruments, Furniture Hardware,...
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Hexagon Socket Screws
Material: Stainless steel
Thread diameter: 2.5mm, thread length: 4mm, pitch: 0.45mm
Drive type: Hexagonal wrench (hexagonal wrench/hexagonal wrench)
Manufacturer:...
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Brass Set Screw With Cone Point
Hex Socket Set Screw, Set Screw with Cone Point
Thread Size: Metric
Material: Brass
Finish: Plain
Head Type: Cone Point
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Nylon Thread Locker Cup Point Set Screw
Nylon Thread Locker Set screw:
Material: Alloy steel SCM435,grade 12.9
Finish:Black oxide
Thread locker: 90 degree to 180 degree thread locker or 3160 degree thread locker....
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Soft Nylon Tip Set Screw
Soft Nylon Tip Set Screw: Material: Stainless steel 304 or 316 screw with Nylon or POM plastic tip Coating:Plain color or passivation. High corrosion resistance compare with steel...
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DIN913 Cone Point Set Screw
DIN913 Cone Point Set Screw:
Material: Alloy Steel 40Cr or SCM435 steel
Coating: Black oxide, With mild corrosion resistance, this screw can be used in dry environment.⁣...
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Brass Tip Set Screw
How to Use Brass Tip Set Screws Brass tip set screws (most folks call them grub screws) are those little threaded guys with a brass end that won't chew up your parts. They're perfect when you...
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Adjustable Knob Screw
Double-headed cold-forged 304 stainless steel hexagon socket adjustment bolt riveted screw adjustment screw (adjustable knob screw) is a composite fastener that combines multiple processes,...
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‌Round Head Stainless Steel Step Screws
Material: 304 stainless steel
Thread Type: Stepped thread
Head Type: Round head
Manufacturer: Zeyao
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Cone Point Set Screw
Material: Carbon steel
Size: Customizable
Manufacturer: zeyao
Customization: OEM/ODM
MOQ: Negotiable
Origin: Huizhou, China
Head Type: Cone Point
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Flat Tip Set Screw
Thread Size：M2–M20
Material：Carbon Steel
Head Type：Flat Tip
Manufacturer：Zeyao
Customization：OEM/ODM
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Why Choose a Set Screw Factory Instead of a Trading Company?

Choosing Zeyao means more than just set screws product; it means reliable manufacturing assurance and customization capabilities:

Complete Process Control

Zeyao boasts 160+ professional production equipment.

Full process control: Raw materials → Cold heading → Tapping → Heat treatment → Surface treatment → Outgoing quality inspection

Stable batches and consistent dimensions ensure reliable performance for every screw.

Meeting Non-Standard and Custom Needs

Non-standard lengths: Adapt to special mechanical structures

Special threads: Meet the requirements of precision equipment

Customized ends: Flat end, tapered end, concave end, or functional end type

Special materials/surface treatments: Corrosion resistant, high temperature resistant, plating, etc.

Guaranteed Batch Consistency

Standardized processes + strict quality inspection

Ensuring consistency across batches for large orders

Avoiding assembly and long-term use issues

OEM / ODM Technical Support

Design optimization based on drawings or samples

Assessment of assembly and process improvements

Ensure customized solutions are mass-producible and can be supplied stably in the long term

Choosing Zeyao means choosing a high-quality, low-risk, and sustainable set screw manufacturing partner.

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Specification

D	P	S			T
D	P	Metric	Max	Min	Min
M1.4	0.3	0.7	0.724	0.711	0.6
M1.6	0.35	0.7	0.724	0.711	0.7
M1.8	0.35	0.7	0.724	0.711	0.8
M2	0.4	0.9	0.902	0.889	0.8
M2.5	0.45	1.3	1.295	1.27	1.2
M3	0.5	1.5	1.545	1.52	1.2
M4	0.7	2	2.045	2.02	1.5
M5	0.8	2.5	2.56	2.52	2
M6	1	3	3.08	3.02	2
M8	1.25	4	4.095	4.02	3
M10	1.5	5	5.095	5.02	4
M12	1.75	6	6.095	6.02	4.8
M14	2	6	6.095	6.02	5.6
M16	2	8	8.115	8.025	6.4
M18	2.5	10	10.12	10.03	7.2
M20	2.5	10	10.12	10.036	8

Types of Set Screw

The set screws produced by our company mainly include the following types:

Flat Point Set Screw

With a flat tip, this type evenly distributes pressure at the contact point, making it ideal for repeated use without causing damage.

Cone Point Set Screw

With a pointed tip, this screw is designed to penetrate the surface, making it perfect for permanent attachment.

Dog Point Set Screw

With a cylindrical tip, this type fits perfectly into a matching hole, making it suitable for permanent and semi-permanent applications.

Cup Point Set Screw

With a cup-shaped tip, this screw provides excellent grip while minimizing damage, making it one of the most widely used set screw types.

Applications of Set Screw

Securing Gears and Pulleys: Set screws affix these parts to rotating shafts to prevent slipping and maintain alignment during operation.

Adjusting Collars on Shafts: Holds collars in place, allowing for precise positioning and easy adjustments on rotating shafts.

Locking Knobs and Handles: Secures knobs or handles onto control shafts to prevent unwanted rotation or loosening during use.

Positioning Components in Electronics: Secures sensitive electronic components, ensuring stability without damaging the area.

Aligning Components in Optical Devices: Holds lenses or mirrors in place for fine adjustments and precise alignment within optical assemblies.

Joining Mechanical Assemblies: Integrates moving parts within machinery, providing a firm hold while remaining recessed.

Fixing Jigs and Fixtures: Secures components within manufacturing setups, offering repeatable positioning and easy adjustments.

Set Screws Head-Types

Straight Slot

A straight-slotted set screw, as the name suggests, can be used with a flat screw driver to be inserted and removed. Very little torque is required to keep this in place but it mostly finds its use in very simple applications.

Hex Socket

The head of the set screw comes with a hex recess and requires a special hex wrench or Allen key to be used on it. It is often tamper-resistance and can be used with more complex requirements.

Square Socket

A square socket set screw, also known as Robertson or scrulox screw drive, comes with a square protrusion on the tool. The tool as well as the socket come with tapers which makes the installation of the fastener very easy.

External Hex

With the external hex screw drive, a six sided tool or a special wrench with a combination or adjustable point sockets has to be used. This head type is preferred over the square socket in places which has restrictive space surrounding the set screw.

External Square

This requires a four sided adjustable wrench or an open ended wrench to be used on it for any operation.

Bristol Spline

This set screw comes with four or six splines at the head. However, this does not make the fasteners tamper-resistant. The grooves are cut using a square-cornered broach, giving the outer corners of the drivers a slight undercut.

Common Materials for Set Screws

Material	Advantages	Disadvantages
Stainless Steel	Corrosion resistance: Ideal for exposure to moisture, chemicals, outdoor environments.	Cost: More expensive than carbon steel and aluminum.
	High strength: Durable under various loads.	Wear: Prone to galling, causing installation/removal difficulties.
	Versatile: Resistant to rust and wear.	/
Carbon Steel	High strength: Handles heavy loads.	Corrosion: Prone to rust unless treated or coated.
	Affordable: Cost-effective performance.	Brittleness: Can become brittle in low temperatures.
	Durable: Withstands mechanical stresses well.	/
Copper	Conductivity: Ideal for electrical applications.	Low strength: Limited for high-load applications.
	Corrosion resistance: Resists tarnishing.	Higher cost: More expensive than carbon steel and aluminum.
	Aesthetic appeal: Visually appealing reddish-brown color.	/
Aluminum	Lightweight: Great for weight-critical applications.	Lower strength: Unsuitable for heavy loads.
	Corrosion resistance: Suitable for humid environments.	Softness: Deforms under high pressure, limiting structural uses.
	Easy to machine: Cost-effective customization.	/
Titanium	Strength-to-weight ratio: Strong yet lightweight.	High cost: Expensive compared to other materials.
	Corrosion resistance: Ideal for extreme environments.	Difficult to machine: Hardness adds to production costs.
	High-temperature resistance	/
Plastic	Corrosion resistance: Does not rust.	Low strength: Limited to light-duty applications.
	Lightweight: Suitable for non-load-bearing applications.	Temperature sensitivity: Deforms or melts under high heat.
	Electrical insulation: Non-conductive.	/

FAQ

Q: What is the point of a set screw?

A: Typically, set screws are intended for use in fastening down (setting) parts or components that would otherwise be able to move or slide around relative to one another. The set screw works by passing through a threaded hole in one component and butting up tightly against the surface of a second part on the rear side.

Q: How do I choose a set screw?

A: Cup —The cup has a thin edge that digs into the contact surface for a secure hold on a wide range of surfaces.
Knurl-Grip Cup —Serrations on the cup edge grip the material surface.
Flat —The tip makes good contact on flat surfaces.

Q: What is the best practice for set screws?

A: To tighten new, standard, alloy, cup point set screws, install an allen wrench with the short end in the socket, long end in your hand, and tighten until the wrench bends or twists about 30° (1 hour on a clock face). Then the set screw is as tight as it should be.

Q: Do set screws need a flat?

A: Set screws are not always the best way to resist the torque of driven shafts. To reduce the chance of slipping and to increase load capacity, a detent (often called a "flat") may be milled or ground at the part of the shaft where the set screw's point contacts.

Q: Are set screws necessary?

A: Set screws are not commonly used, as they have a specialist function: Secure one component inside another component. Set screws are ideal for this, as they lack protruding parts that would interfere with the two components' movement, as is necessary for gears on shafts.

Q: What is the difference between a set screw and a regular screw?

A: Set screws typically require specialised tools like wrenches for tightening, emphasising precision. Grub screws require an Allen key to use. Regular screws, with their varied head types, offer flexibility in tool engagement, making them more user-friendly in terms of accessibility.

We're professional set screw manufacturers and suppliers in China, specialized in providing high quality products and service. We warmly welcome you to wholesale customized set screw made in China here from our factory.

Extended Tip Set Screws, Cone Point Set Screw, set screw