With advancements in technology and the ever decreasing size of components and electrical devices, we understand the importance of small bolts. Demand for our smallest bolts: m1 bolts, m2 bolts, m3 bolts and m4 bolts has grown markedly in the last few years. However, size is only one factor and customers are rightly concerned with the quality and build production of these small bolts. Our M3 bolts are constructed from high quality grades of A2 or A4 stainless steel, ensuring a premium quality product. Despite their small size these m3 stainless bolts have a superior build quality, and thanks to their corrosion resistance, can withstand use in external environments.

An m3 bolt is in the middle of our range of small bolts, with a 3mm thread width. M3 bolts are commonly used to secure electronic devices. Often fastening their casing or the circuit boards and components inside. The premium construction of our m3 bolts makes them suitable for business use in commercial, industrial and manufacturing projects, in addition to being commonly used for consumer applications.

Where are m3 bolts used?

M3 stainless bolts have a 3mm thread size, which is useful for many small fastening applications. These small bolts have high demand, and many customers value their small size and excellent build quality. They are frequently used in:

1. Aerospace: In the aerospace sector, m3 bolts are often used in the construction of small-scale components, especially within instruments and avionic systems inside aircraft.
2. Optical instruments: As one of the smallest sizes of fastener, m3 bolts are often used to assemble optical instruments such as microscopes, cameras and telescopes. The internal components within these devices need to be secured tightly to ensure  alignment and precision.
3. Watchmaking: Due to their small size, m3 bolts are commonly used in the watchmaking industry for assembling and securing intricate timepieces. Their precision, small size and premium build quality make them essential for constructing high quality watches.

Exceptional m3 bolt supply

Vital Parts has established a strong supply chain that allows us to deliver large quantities of M3 bolts quickly and efficiently. We are well positioned to assist companies with industrial scale projects and provide the m3 bolts required to complete their manufacturing projects, by ensuring:

1. Reliable Supply: We work hard to maintain a well-stocked inventory, as well as a strong supply chain. We are able to promptly fulfil requirements, even for applications with bespoke or specific needs. We can deliver regular shipments of the m3 bolts that you need, at the times that you need them.
2. Premium Quality: Our M3 bolts have a premium build quality and as standard, are constructed from A2 or A4 stainless steel. Offering an excellent blend of strength, durability, and aesthetics.
3. Expert Guidance: Our friendly and knowledgeable team are always ready to help you to select the right small bolts for your project. It is also possible to ask them for different materials or sizing of m4 bolts that are not listed on the website.
4. Cost-Effective Solutions: Vital parts offers bulk discounts. Business pricing is also available for our business account customers, ensuring a competitive pricing structure and stable supply of m3 bolts for our valued customers. They will also enjoy access to a dedicated account manager.

M3 bolt head styles and head drives

Our m3 bolts are available in an broad range of head styles and head drives. We have constructed a wide offering to ensure that we have the right small bolts for your application. We can supply m3 pan head screws, m3 cheese head screws, m3 countersunk screws and raised countersunk head styles. Similarly, we can also provide your preferred head drive, from slotted, pozi, m3 phillips to m3 torx screws.

While our m3 bolts are stocked as standard in premium A2 or A4 stainless steel, we also commonly supply m3 stainless bolts in a range of other popular materials. This includes m3 brass screws, m3 aluminium screws, m3 titanium screws and m3 nylon screws from our range of m3 plastic screws.

Contact us today to discuss your project requirements, explore our offering of m3 bolts, and discover how our high quality small nuts and bolts can support your next project.

Are m3 bolts the same as m3 countersunk screws?

Customers looking for both m3 countersunk screws and m3 bolts will likely find them to be the same product. They are also described as 3mm bolts due to them having a 3mm thread width. Metric bolt sizing use millimetres, as opposed to US sizing which uses inches instead. Our range of m3 bolts will be ideal for any customer searching for m3 machine screws and m3 screws. We commonly supply customers with M3 x 10mm countersunk screws and M3 x 12mm countersunk screws. With popular requests for M3 x 8mm countersunk screws.

Explore our range of small bolts:

Apart from M3 bolts, our range of small bolts also includes M2 bolts and M4 bolts. M1 bolts are also available, but not currently on the website – just contact our team for more information.

M3 bolts are perfect for fastening small electrical devices, components and circuit boards. In addition to many different applications across the commercial, industrial and manufacturing sectors.

Call our friendly UK based team today on 01233 713581