Custom Machined Fasteners

As a custom machined fastener manufacturer in China, Seather can supply made to order customized fasteners per your print. Here we can help you all fasteners solutions.

Whatever size at whatever tight tolerance of custom fasteners you demand, stainless steel or special alloys, Seather here is sure to have it!

Seather offers consultations, analysis, design, quality assurance and One-stop global logistic services.

custom machined fasteners

Your Trusted Custom Machined Fasteners Manufacturer In China

Seather provides best quality customized products and manufacturing services for your every fastener project.

Our company bears no compromise on quality. We use the prime quality stainless steel and special nickel based alloys materials along with the advanced equipment and precision production processes.

We revise the orders and take thorough insights before forwarding the order to the final production line. This makes sure the every production is carried out in the most effective manner with zero errors.

Our professional team engineers can help deliver our customers with fast, clear and professional looking technical formats.

We can also provide these drawings in a variety of different types to suit your demands whether it be the SLDPRT, dwg format or pdf file.

From raw materials to machining and custom packaging, here we are your expert!

custom made bolts

Custom Made Bolts

custom made threaded rods studs

Custom Made Threaded Rods & Studs

custom made screws

Custom Made Screws

custom made nuts

Custom Made Nuts

Custom Machined Fasteners Materials & Grades

Stainless SteelsAustenite steel 321, 316Ti, 316L, 304L, 304, 309S, 310S, 347, 317L, Precipitation Hardening 17-4, 17-7, Duplex and Super Duplex stainless steel 2205, 2507, F53, 2101, 2304, Special stainless steel 904L, S31254, 1.4529, etc.
Nickel Based AlloysAlloy B, B-2, B-3, C-22, C-276, C-2000;
Alloy 800, 800H. 800HT, 825, 925, A-286, 330;
Alloy 600, 601, 625, 690, 718, X-750;
Alloy 400, K-500; 


For more raw materials information about custom fasteners, contact SEATHER expert team now!

custom machined fasteners materials and grades
custom machined fasteners fabrication techniques

Custom Machined Fasteners Fabrication Techniques

Most people don’t know how the custom fasteners are made, instead, they always see a lot of custom stainless steel bolts in plants or industrial fields, but the truth is making custom fasteners is not easy than you imagined.

When it comes to customized and non standard special fasteners production, Seather’s rich manufacturing experience really shows.

Why Choose SEATHER to Customize Your Custom Machined Fasteners

custom machined fasteners design

Custom Fasteners Drawing Design

custom machined fasteners cnc machining process

Custom Fasteners Machining

custom machined fasteners inspection

Custom Fasteners Inspection

SEATHER specializes in the manufacturing of custom made fasteners products, export to Europe and USA, offering consultations, analysis, design, quality assurance and One-stop global logistic services.

We provide full solutions that can have your design finished in a matter of hours. This gives you the opportunity to rigorously test your product, and make all the needed changes to perfect your design before it goes into mass production.

SEATHER will be your perfect choice when purchasing precision custom made fasteners and large size components.

Manufacturing Services & Powerful Capabilities

Our cost effective precision metal machining for flanges include planing, cutting, milling, drilling, grinding, and any other metal processing techniques.

cad design and 3d modeling services

CAD Design & 3D Modeling

metal forging service

Metal Forging Service

cnc machining

CNC Machining Service

Need An Expert To Manufacture Your Custom Machined Fasteners?

Custom Machined Fasteners: The Ultimate Guide

The custom machined fasteners are customized fasteners that do not fit within the ranges of the ANSI/ASME standards.

When you choose to buy custom made fasteners, there have some important points we need to know before we get started.

So enjoy the read…

What are Custom Machined Fasteners?

The custom machined fasteners is called non standard special fasteners, which are the parts that do not match existing catalog sizes.

The custom machined fasteners are manufactured to the customer’s drawings or specifications for use in products where unique properties are required for safety, performance or durability reasons.

These special fasteners can be made from a variety of materials including nickel alloy steels, stainless steels, brass and aluminum alloys.

The custom machined fasteners have many applications across market sectors including aerospace, automotive, energy, electronics and telecommunications.

Custom Machined Fasteners Applications

1. The equipment of manufacturing: such as the machine tool industry and so on.

2. Agricultural machinery and equipment: including the manufacture and installation of a variety of agricultural machinery maintenance, such as, agricultural machinery companies and specialized agricultural machinery factories.

3. Military usage: including military products, weapons and equipment manufacturing and maintenance, such as military enterprises and arsenal.

4. Motor vehicle production: including passenger cars and trucks for maintenance, such as car repair companies and specialized auto repair plants (for example: motorcycle factory).

5. The production of elevators by elevator manufacturers for elevators that require assembly.

6. Shipbuilding industry: it is necessary to install marine vessels on the deck of the ship with special fasteners during the construction of ships to ensure that they do not fall off during long-term use or when there is a big wave at sea.

7. General engineering technology departments: special fasteners are needed in almost all industrial sectors such as power plants and metallurgical industries.

Features of Custom Machined Fasteners

  • Corrosion resistant
  • High tensile strength
  • Very durable
  • Temperature resistant
  • Easy formability and fabrication
  • Low-maintenance
  • Attractive appearance
  • Environmentally friendly (recyclable)

What Are Custom Machined Fasteners Surface Treatment?

Custom made fasteners and parts surface treatment is one of the major part in whole production.

Different surface finish will be used for different applications.

Customers can choose the corresponding surface finish according to their own usage.

With methods including anodizing, passivation, brushing, polishing, blackened, plating, painting, powder coating, heat treatment, surface phosphating, hot dip galvanizing, surface treatment dacromet, etc.

How are Custom Machined Fasteners manufactured?

1. Custom machined fasteners drawing design:

In the non-standard special fasteners drawing design, the designer needs to study the product drawings and related technical requirements in detail, and then follow the relevant national standard drawings for processing. It is necessary to use computer-aided design software for two-dimensional analysis of the parts, and then make a three-dimensional analysis of the parts. The finished product should be tested by CAD software to find out whether it meets its requirements.

2. Custom machined fasteners metal raw materials preparation:

After the design of non-standard special fasteners is completed, it is necessary to prepare the materials required for processing according to the drawings through inspection. In this step, we must strictly control the quality of materials that have passed inspection.

3. Processing:

If you want to make a good non-standard special fastener, it must be processed well during processing. The process of processing requires mastering a lot of knowledge, including mechanical theory and CNC programming language knowledge.

4. Inspection:

After processing, it is necessary to carry out strict inspection on the products in order to ensure that every dimension meets its standards.

Key Considerations When Buying Custom Machined Fasteners

When purchase the custom machined fasteners from China manufacturer, you should know the standards, size, materials grades, production process, drawings details, etc.

Below Is One Sample Purchasing Tips For Your Reference

  • Standards: ASTM A240
  • Material Grade: C276 Alloy
  • Size: As your drawing request
  • Usage: Pollution Process
  • Production Process: CNC machined
  • Tolerance: -0.01mm/+0.01mm
  • Requirement On Properties: As your request
  • Order Quantity, Delivery Time, Shipping Method, Place Of Delivery, Packaging Requirement, etc. should be considered.


Unquestionably, it is quite apparent that custom fasteners revolves around numerous aspects, some of which we haven’t looked into here. But for now, at least you have the idea of what it takes to buy and install a functional fasteners that yields efficiency.

We are hopeful that this guide has been significantly helpful to you in many ways. And for that reason, it would be prudent if you also feel free to share it on your social media handles.

You know what, someone might also be looking for this kind of valuable information and you may be of considerable help too.

Otherwise, if you have any questions, recommendations, or concerns, you may also feel free to contact our expert team. For sure, we will gladly offer the necessary assistance.

More Resources

Custom Machined Fasteners FAQS

Q1.What Are The Types of Custom Fasteners and Non Standard Special Fasteners?

Custom Made Fasteners TypesDetails
Custom Made BoltsCustom Made Stainless Steel Bolts
Custom Made Nickel Alloys Bolts
Custom Made Titanium Bolts
Custom Made Aluminum Alloys Bolts
Custom Made Brass Bolts
Custom Shoulder Bolts
Custom U Bolts
Custom Made NutsCustom Made Stainless Steel Nuts
Custom Made Nickel Alloys Nuts
Custom Made Titanium Nuts
Custom Made Aluminum Alloys Nuts
Custom Made Brass Nuts
Custom Made Threaded Studs & RodsCustom Made Stainless Steel Threaded Rods
Custom Made Nickel Alloys Threaded Round Bars
Custom Made Titanium Threaded Rods
Custom Made Aluminum Alloys Hollow Threaded Studs
Custom Made Brass Threaded Rods
Custom Made ScrewsCustom Machine Screws
Custom Shoulder Screws
Custom Thumb Screws
Custom Lead Screws
Custom Precision ShaftsAccording To Your Detailed Request
Custom Bushing Sleeve
Custom Pipe Fittings
Custom Flanges
Custom Spacers And Standoffs
Custom Washers And Rings
Custom Rivets
Custom Precision Machined Components

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Discuss Nickel Alloys, Stainless Steels, and Raw Materials and Custom Alloy Fabrication Components for Your Industrial Project

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