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  • VIDEO
Besitu M3 Hex Socket Button & Cap Head Metric Screw Assortment Kit, 12.9 Grade Alloy Steel BlackBesitu
  • Besitu 1600Pcs M3 Screw Kit, 12.9 Grade Alloy Steel Hex Socket Button & Cap Head Metric Screw Assortment M3 Bolts and Nuts Washers Kit Black Small Machine Screw Set for 3D Printing
  • To view this video, download

Besitu 1600Pcs M3 Screw Kit, 12.9 Grade Alloy Steel Hex Socket Button & Cap Head Metric Screw Assortment M3 Bolts and Nuts Washers Kit Black Small Machine Screw Set for 3D Printing

4.7 out of 5 stars 179 ratings
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Purchase options and add-ons

Size One Size
Colour Black
Material Alloy Steel with Zinc coating
Brand Besitu
Item dimensions L x W x H 19.1 x 12.7 x 3.6 Centimetres

About this item

  • 【Hex Socket Button & Cap Head】280pcs M3 x 5/6/8/10/12/16/20/25/30mm hex socket head cap screws, 250pcs M3 x 6/8/10/12/16/20/25/30/35mm hex socket button head screws, 535pcs M3 nuts and 535pcs flat washers, 1600 pieces in total. Perfect size for assembling 3d printed items.
  • 【12.9 Alloy and Zinc Plated】The m3 metric screw is made of 12.9 grade alloy steel, and zinc coated are designed for no corrosion with no oil face. All screws are machined very cleanly and have a quality finish on them.
  • 【Time & Money Saver】Great bins for storage with a size chart on the inside and outside. Compared to the time it takes to go to a hardware store and the cost of buying single metric screws, this machine screw assortment is a time and money saver.
  • 【Organized Package Box】With a total of 1600 pieces, this M3 screw kit offers a sufficient quantity of screws nuts washers to support multiple projects. The organized packaging makes it easy to locate and access the specific m3 screws you require, saving you time and improving efficiency during work.
  • 【Wide Applications】This screw bolt and nut kit has everything you need to screw anything together, from furniture to electronics. They will get the job done for 3D prints and laser cut items no sweat. Also Must have for robot builders, allowing for precise jig setup and product centering.
› See more product details

Product details

  • Product Dimensions ‏ : ‎ 19.05 x 12.7 x 3.56 cm; 798 g
  • Date First Available ‏ : ‎ April 12 2024
  • Manufacturer ‏ : ‎ Besitu
  • Place of Business ‏ : ‎ Besitu
  • ASIN ‏ : ‎ B0D1KQCBMT
  • Manufacturer reference ‏ : ‎ m3 screw assortment kit
  • Country of origin ‏ : ‎ USA
  • 鶹 Rank: #6,350 in Tools & Home Improvement (See Top 100 in Tools & Home Improvement)
  • Customer Reviews:
    4.7 out of 5 stars 179 ratings

Frequently bought together

Besitu 1600Pcs M3 Screw Kit, 12.9 Grade Alloy Steel Hex Socket Button & Cap Head Metric Screw Assortment M3 Bolts and Nuts Wa
This item: Besitu 1600Pcs M3 Screw Kit, 12.9 Grade Alloy Steel Hex Socket Button & Cap Head Metric Screw Assortment M3 Bolts and Nuts Washers Kit Black Small Machine Screw Set for 3D Printing
$29.99
Get it by Wednesday, Aug 6
In Stock
Sold by Besitu and ships from 鶹 Fulfillment.
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HANGLIFE Heat-Set Threaded Inserts, M3 Heat Set Insert for 3D Printing Components and Plastic Parts - Brass Metric Knurled Nu
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HANGLIFE M3 Heat-Set Threaded Inserts with Insert Tip, Heat Set Insert for 3D Printing Components and Plastic Parts with Sold
$13.99
Get it by Wednesday, Aug 6
In Stock
Sold by hanglife and ships from 鶹 Fulfillment.
Total price:$00
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  2. Besitu was officially founded in 1998 and is a manufacturer specializing in Nails, Screws & Fasteners. We have our own R&D and design centre, quality control centre and production base. Today our products are exported to more than 50 countries and regions, including North America, Europe and Japan.

    Our goal is to provide the best quality, reliable and affordable portable Fasteners products to users worldwide.

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Product Description

m3 nuts and bolts
m3 machine screws
m3 assortment
m3 socket head cap screw
metric screw assortment
m3 hex screws

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Customer reviews

4.7 out of 5 stars
179 global ratings

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Customers say

Customers like the quality, assortment, and functionality of the product. They mention it's a complete set with nuts and washers. Customers also say it's an excellent value for money.

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QualityAssortmentFunctionalityValue for money
6 customers mention "Quality"6 positive0 negative

Customers are satisfied with the quality of the product. They mention it's a complete set and has excellent value.

"well made and well organized set of m3 screws and bolts...." Read more

"A complete set. Good quality and excellent value. Would certainly buy again." Read more

"Nice selection to add to the Maker space. No issues with quality." Read more

"Good Quality..." Read more

4 customers mention "Assortment"4 positive0 negative

Customers like the assortment of the product. They mention it has nuts and washers.

"Great assortment. Perfect for building 3D printed things." Read more

"Bolts are great! Assortment is good and I found none with missing or damaged threads. Highly reccomend!" Read more

"Nice selection to add to the Maker space. No issues with quality." Read more

"Nice assortment..." Read more

3 customers mention "Functionality"3 positive0 negative

Customers are satisfied with the functionality of the product. They mention it works great and would buy again.

"...applications but have used them for various other jobs and they work perfectly fine...." Read more

"...Works great. Would buy again." Read more

3 customers mention "Value for money"3 positive0 negative

Customers are satisfied with the value for money of the product. They mention it's excellent.

"...Incredible value for the amount you get." Read more

"...was a great mix of pieces in the M3 size range and for the price it was well worth it...." Read more

"A complete set. Good quality and excellent value. Would certainly buy again." Read more

Convenient set of M3 machine screws, washers, and nuts
5 out of 5 stars
Convenient set of M3 machine screws, washers, and nuts
This kit includes nine lengths of button head (5/6/8/10/12/16/20/25/30mm) and nine lengths of cap head (6/8/10/12/16/20/25/30/25mm) M3 machine screw, and one nut and washer per screw. Fasteners feel solid and nuts thread-on easily. The storage box is very good at keeping everything separated and baggies are not included (nor are they needed). This makes it much easier to grab the size you need. Dividers are clipped firmly in place and don’t pop out as easily as those in other kits. Overall, this is a great kit if you’d like to have small machine screws on hand.
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Top reviews from Canada

  • Paul Morse
    5.0 out of 5 stars unbeatable value
    Reviewed in Canada on January 23, 2025
    Verified Purchase
    well made and well organized set of m3 screws and bolts. I mainly use them for 3d printed applications but have used them for various other jobs and they work perfectly fine. They arrived in a ton of bubble wrap both inside and outside so nothing moved during shipping. Incredible value for the amount you get.
    Helpful
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  • Elijah R.
    5.0 out of 5 stars Good Quality
    Reviewed in Canada on January 7, 2025
    Verified Purchase
    Bolts are great! Assortment is good and I found none with missing or damaged threads. Highly reccomend!
    Helpful
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  • Dr Jeffrey Judelson
    5.0 out of 5 stars Excellent value and quality
    Reviewed in Canada on April 2, 2025
    Verified Purchase
    A complete set. Good quality and excellent value. Would certainly buy again.
    Helpful
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  • Barrett Reimer
    4.0 out of 5 stars Nice assortment
    Reviewed in Canada on February 17, 2025
    Verified Purchase
    Good kit. Would like more 30mm length though.
    Helpful
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  • MisterPlow
    5.0 out of 5 stars Do you need M3 screws? Buy this.
    Reviewed in Canada on January 9, 2025
    Verified Purchase
    Great pack. Just keep in mind the sizes and lengths available in the package. Check the description and make sure it's what you need.

    For me, this pack was a great mix of pieces in the M3 size range and for the price it was well worth it.

    Threads are clean and all pieces are the correct size. Available lengths are good and I've used at least one of each piece in the kit at this point. Works great. Would buy again.
    Helpful
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  • Serge Duhamel
    5.0 out of 5 stars ϳܲé
    Reviewed in Canada on April 18, 2025
    Verified Purchase
    Bonne qualité du produit
    Helpful
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  • David Jann
    5.0 out of 5 stars As advertised and on time.
    Reviewed in Canada on July 8, 2025
    Verified Purchase
    As advertised and on time.
    Helpful
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  • spinnychick
    5.0 out of 5 stars They're screws
    Reviewed in Canada on May 4, 2025
    Verified Purchase
    These screws are... ummm... screws. The threads are consistent on both the screw and the nuts. The heads don't strip immediately. There's enough of them that if you drop one into the abyss below the work bench, you can probably still finish your project.
    Helpful
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Top reviews from other countries

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  • Nick
    5.0 out of 5 stars A nice kit of all the M3 size screws.
    Reviewed in the United States on February 19, 2025
    Verified Purchase
    The kit is nice. I have used some of the screws to put together some of my 3d print projects. I like how it came with some Allen wrenches also. A nice kit, worth the money.
    Report
  • Christina C.
    4.0 out of 5 stars quality screws! box which holds screws is poor, have it shipped in a BOX (with other items)!
    Reviewed in the United States on April 14, 2025
    Verified Purchase
    overall, the screws are great. the base of the box and dividers are sturdy (but the dividers dont go all the way to the base), AND the lid and latches are very poor.

    I gave this 4 stars because of the quality of the screws, they're great! because of the lid and latches breaking, I'd give it more like 3½ stars.. i have to mention that 鶹 shipped it, in one of their plastic mailers. so, i don't think it was ever going to make it here unscathed (unless it was packaged in bubble wrap and/or bubble wrap in an actual BOX).

    in the end, after i removed the packaging entirely, i was not prepared for the rush and naturally, gravity definitely wasn't my friend, it all fell onto the floor. I'm going to attempt to fix the box with tape, but I'm not sure that'll be enough to ever get the box to close securely.. one thing for sure is, with or without a lid, it will most likely will remain stationary!
    Report
  • 鶹 Customer
    5.0 out of 5 stars The head type and varity of sizes.
    Reviewed in the United States on May 25, 2025
    Verified Purchase
    Exactly what I was looking for. The screws had both type of screw's heads I needed for my Creality printer as I was constantly losing them when modifying the printer.
    Report
  • Melissa Espinal
    4.0 out of 5 stars Variedad de tornillos y tuercas en un mismo set.
    Reviewed in the United States on June 14, 2025
    Verified Purchase
    Este kit viene muy completo, tal como se indica en la descripción. Trae una buena variedad de tornillos y tuercas, además incluye dos llaves de diferentes diámetros, lo cual me pareció un buen detalle. Lo estoy usando principalmente para piezas impresas en 3D, así que dejo aquí las medidas aproximadas de las tuercas, por si a alguien le sirve para diseñar encajes precisos. Muy recomendable para quienes trabajen con electrónica o impresión 3D.
    Customer image
    Melissa Espinal
    4.0 out of 5 stars
    Variedad de tornillos y tuercas en un mismo set.

    Reviewed in the United States on June 14, 2025
    Este kit viene muy completo, tal como se indica en la descripción. Trae una buena variedad de tornillos y tuercas, además incluye dos llaves de diferentes diámetros, lo cual me pareció un buen detalle. Lo estoy usando principalmente para piezas impresas en 3D, así que dejo aquí las medidas aproximadas de las tuercas, por si a alguien le sirve para diseñar encajes precisos. Muy recomendable para quienes trabajen con electrónica o impresión 3D.
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    Report
  • 鶹 Customer
    5.0 out of 5 stars Quality screw set
    Reviewed in the United States on July 17, 2025
    Verified Purchase
    Quality screws
    Report