Hey there! If you’re searching for a reliable supplier of double-ended M1 bolts with built-in nuts, you’ve come to the right place. As a factory specializing in precision fasteners, we understand how important it is to find components that are not only tiny but also tough, reliable, and perfectly manufactured.


What Is a Double-Ended M1 Bolt with Built-In Nut?
A double-ended M1 bolt with built-in nut is a small but mighty fastener designed for applications where space is limited, precision is non-negotiable, and assembly efficiency is key. These micro-fasteners feature threading on both ends with a hexagonal or knurled middle section that acts as a built-in nut. That means:
- No fumbling with separate tiny nuts
- Faster and more secure assembly
- Ideal for blind or hard-to-reach areas
At just 1mm in diameter, this little component plays a big role in industries like electronics, medical devices, optics, and aerospace.
Why Choose Our Factory for Your Precision Fastener Needs?
We don’t just make fasteners—we engineer solutions. Here’s what sets us apart:
1.Advanced Manufacturing Equipment
We invest in state-of-the-art CNC machining and thread-rolling technology to ensure every M1 bolt we produce meets ultra-precise specifications. Our machines are calibrated regularly to maintain consistency, whether you need 100 pieces or 100,000.
2.Skilled Craftsmanship
There’s no substitute for experience. Our team includes engineers and technicians who specialize in micro-fastener manufacturing. They understand thread pitch, tolerance control, and material behavior—down to the micron.
3.Rigorous Quality Control
We know that failure is not an option, especially in critical applications. That’s why:
- We use vision measurement systems and precision gauges to inspect every batch
- We document and trace each production lot for full accountability
- We comply with international standards including ISO 9001 and RoHS
4.Wide Product Range & Customization
While the double-ended M1 bolt with built-in nut is one of our star products, we offer:
- Various materials: stainless steel, brass, aluminum, and more
- Different platings and finishes: passivation, nickel plating, etc.
Custom threading, lengths, and head styles—because sometimes you need a tweak to make things perfect.
Where Are Double-Ended M1 Bolts Used?
These components may be small, but they’re essential in big-impact industries:
- Electronics: Securing components in smartphones, wearables, and circuit boards.
- Medical Devices: Used in surgical instruments, implants, and diagnostic equipment.
- Optics & Automation: Aligning lenses, sensors, and miniature actuators.
- Aerospace and Defense: Where lightweight and high reliability are mandatory.
Let’s Work Together
Whether you’re designing a breakthrough medical device or scaling up production of consumer electronics, having the right fastener supplier is crucial.
We pride ourselves on making components that you can trust—so you can focus on what you do best: innovating and growing.
| CNC Turning, CNC Milling, Laser Cutting, Bending, Spining, Wire Cutting, Stamping, Electric Discharge Machining (EDM), Injection Molding,3D Printing,Rapid Prototype,Moulds etc. |
| Aluminum: 2000 series, 6000 series, 7075, 5052, etc. |
Stainlesss steel: SUS303, SUS304, SS316, SS316L, 17-4PH, etc. |
Steel: 1214L/1215/1045/4140/SCM440/40CrMo, etc. |
Brass: 260, C360, H59, H60, H62, H63, H65, H68, H70, Bronze, Copper |
Titanium: Grade F1-F5 |
Plastic: Acetal/POM/PA/Nylon/PC/PMMA/PVC/PU/Acrylic/ABS/PTFE/PEEK etc. |
| Anodized, Bead Blasted, Silk Screen, PVD Plating, Zinc/Nickl/Chrome/Titanium Plating, Brushing, Painting, Powder Coated, Passivation, Electrophoresis, Electro Polishing, Knurl, Laser/Etch/Engrave etc. |
| ±0.002 ~ ±0.005mm |
| Min Ra 0.1~3.2 |
CERTIFICATE | ISO9001:2015,AS9100D,ISO13485:2016,ISO45001:2018,IATF16949:2016,ISO14001:2015,ROSH,CE etc. |





FAQ
1. Are you a manufacturer or a trading company?
We are a factory located in Shenzhen, China, with 20 years of rich experience,
covering 6000 square meters. Complete facilities, including 3D quality inspection equipment, ERP system and 40 machines. If necessary, we can provide you with material certificates, sample quality inspection and other reports.
2. How to get a quote?
Detailed drawings (PDF/STEP/IGS/DWG...), including quality, delivery date, materials, quality, quantity, surface treatment and other information.
3. Can I get a quotation without drawings?
Can your engineering team draw for my creativity? Of course, we are also glad to receive your samples, pictures or detailed size drafts for accurate quotation.
4. Can you provide samples before mass production?
Of course, the sample fee is necessary. If possible, it will be returned during mass production.
5. What is the delivery date?
Generally, the sample lasts for 1-2 weeks and the batch production lasts for 3-4 weeks.
6. How do you control quality?
(1) Material Inspection - Check material surfaces and approximate dimensions.
(2) First inspection of production - ensure
critical dimensions in mass production.
(3) Sampling inspection - check the quality before delivery to the warehouse.
(4) Preshipment inspection - 100% inspection by QC assistant before shipment.
7. After sales service team
If you have any problems after receiving the product, you can provide feedback through voice call, video conference, email, etc. within one month. Our team will provide you with solutions within a week.