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- Mr. Pen M3 hex button and socket heads set includes a total of 1590 pieces, providing a comprehensive assortment of bolts, nuts, and washers to meet a wide range of assembly and repair needs.
- Made from high-quality stainless steel, these fasteners offer durability and corrosion resistance, ensuring reliable use across various applications.
- This set includes multiple sizes of M3 bolts with both hex button and socket head designs, making it suitable for different types of projects and requirements.
- The kit comes organized in a sturdy, transparent storage case with labeled compartments, making it easy to find and access the right parts when needed.
- Complete with included Allen wrenches for easy assembly, this versatile kit is ideal for home improvement, DIY projects, and professional use, offering convenience and efficiency in one compact package.
MegJx
Reviewed in the United States on February 17, 2025
Mr Pen M3 Assortment arrived in a small clear box that had separate slots for each screw size and were labeled with each size as well. My box came fully intact, no cracks or issues as I had read in some other reviews. Each screw size, including nuts and washers, were packaged in their own slightly greased ziplock bag. Very convenient for keeping them organized. The quality worked well for me & this pack went beyond expectations, I used them on my 3D prints. Definitely would purchase from Mr. Pen again.
Briana
Reviewed in the United States on February 16, 2025
Works great, haven't stripped anything yet and used about half the bolts in this kit building 3D projects. Great value hardware.
L W
Reviewed in the United States on December 29, 2024
This is a very good set of M3 nuts screws with various lengths and nuts. My plastic box came in perfect shape with no cracks. unlike some other assortment kits, this one has a lot of pieces for each screw length so you will have enough of the same screws you need to complete your project.Recommended!
DesertCat
Reviewed in the United States on December 20, 2024
Overall it's a very good value and will be quite handy for 3D print projects. But the quality could be improved. The box the screws and bolts come in was shattered all over, I did not think it was worth returning since I suspect this will be the case most if not all of the time, the plastic is extremely thin and this is a heavy item. Luckily each item is separated out into it's own bag, so even if the box is a total goner, at least you won't need to sort everything. But if the box being intact and useable on a long-term basis is important to you, this won't be a good pick. Also everything is coated in some kind of oil to the point of it being pooled up inside the bags - if this is actually stainless steel it should not be necessary to prevent rust with a grease soak.
Donald Lane
Reviewed in the United States on December 20, 2024
I'm always needing a nut, bolt, or screw. It always seems that I have every size except the one I need. Buying individual screws is pretty pricey, so I thought I would give this set a try. Excellent choice. This hardware is well made out of good quality materials. Fit and finish are excellent. Comes with a nice plastic case that keeps everything together and organized. Good assortment of sizes. Highly recommend. 5 stars.
Better Deals
Reviewed in the United States on December 18, 2024
This kit of M3 bolts and nuts works great. This is a larger range of sizes than most others. It's a good assortment for use in 3D printing, where the M3 size is popular. And, it has both the socket caps and the button caps, so it covers the whole range. Also, I like that each size of nut/bolt is packaged in a ziplock bag. This helps prevent disasters where the box gets tossed around in shipping, and you end up with a box that hopelessly mixed up. Plus, it allows a bit of oil to be added, so nothing gets any corrosion started. And, all the nuts and bolts are interchangeable with the other M3 stuff that I use.
Mark Kantrowitz
Reviewed in the United States on December 17, 2024
This is a collection of M3 nuts, bolts and washers in 18 sizes from 5 mm to 35 mm, including both button head and socket head types. Two hex wrenches are also included.There's just one problem: As shown in the picture, it came with the corner of the plastic case crushed. The case is flimsy thin plastic and the corners are not reinforced, so this is not surprising.
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