Shopping Cart

Your cart is empty.

Your cart is empty.

M2.5-0.45x5mm Button Head Socket Cap Screws - 100Pack - Good for Machine - Carbon Steel Black Oxide - Hex Drive Full Thread Fasteners

Free shipping on orders over $29.99

$7.49

$ 2 .99 $2.99

In Stock

1.Size:M4-0.7x18mm


2.:25


About this item

  • [Inner Hex Socket Screw]: The package comes with 100 Pcs of full thread coarse thread button head socket screws in Thread Dia: M2.5, Thread Pitch: 0.45mm/ 0.02", Thread Length: 5mm/ 0.2"
  • [Sturdy & Durable]: Constructed with carbon steel material with blackening treatment, the hex socket cap screw is of stronger durability, has a bright appearance, is not easier to deform or corrode, and has a long service life than other surface finishes.
  • [Design]: The button socket head cap screw is designed with an inner hex drive style and dome head, providing a higher torque and clamping force, as well as offering a wider bearing surface and high tensile strength.
  • [Good Choice]: Good replacement parts and construction fasteners for use in most machinery industries, automotive industries, electronics industries, manufacturing applications, die fixtures, and clamps.
  • [Installation]: To access this hex drive screw, you will need to use a hex wrench to tighten or loosen. The socket button head design enhances torque capabilities, allowing for greater clamping force. For optimal results, it is recommended to use a retaining washer to securely lock the hex drive in place.



Product Description

button head socket cap bolts screws
1

Size Available

We have this button head screws in different sizes can meet your different daily needs.

  • Inch UNC Size: #4-40; 1/4-20; 3/8-16; 5/16-18
  • Metric Size: M2.5-0.45; M2-0.4; M3-0.5; M3-0.8; M4-0.7; M5-0.8; M6-1; M8-1.25; M10-1.5

Size Available

Material

Hex Drive Style

Full Thread

1
button head cap screw
Customer Reviews
4.3 out of 5 stars 24
4.4 out of 5 stars 64
4.9 out of 5 stars 23
4.4 out of 5 stars 37
4.9 out of 5 stars 46
5.0 out of 5 stars 7
Material Carbon Steel - Black Oxide Carbon Steel - Black Oxide Carbon Steel - Black Oxide 304 Stainless Steel 18/8 304 Stainless Steel 18/8 304 Stainless Steel 18/8
Thread Type UNC Thread Metric Metric UNC Thread UNC Thread Metric
Thread Size #6, 5/16, 1/4, 3/8 M2.5, M3, M4, M5, M6, M8 M3, M4, M5, M6, M8, M10 #4, #6, #8, #10, 5/16, 1/4 5/16, 1/4, 3/8 M8, M10
Package 10/20/25/50/100 Pack 25/50/100 Pack 10/15/20 Pack 50/100/200 Pack 10/15/20/25/30 Pack 4/6/8 Pack
Customer Reviews
4.7 out of 5 stars 35
4.4 out of 5 stars 14
4.6 out of 5 stars 23
4.9 out of 5 stars 22
4.5 out of 5 stars 29
Material 304 Stainless Steel 18/8 304 Stainless Steel 18/8 304 Stainless Steel 18/8 304 Stainless Steel 18/8 304 Stainless Steel 18/8
Thread Type Metric Metric Metric Metric Metric
Thread Size M2, M2.5, M3, M4, M5, M6, M8 M3, M4, M5, M6, M8, M10 M3, M4, M5, M6, M8, M10 M3, M4, M5, M6, M8, M10 M4, M5, M6, M8, M10
Package 100 Pack 20/30/50/60/80/200 Pack 5/15/25 Pack 50 Pack 10 Pack

Madeline
Reviewed in the United States on May 19, 2025
This was exactly what we needed. Great value and works well. Too bad my husband found the ones we were looking for after I bought them lol.
Michael
Reviewed in the United States on February 9, 2025
Give it a 3 star they work put easy to strip
Don
Reviewed in the United States on September 29, 2024
Cheap screw, you get what you pay for. Strips very easily
Richard
Reviewed in the United States on September 20, 2024
Just the right side forounting fans to a Corsair XR5 360mm radiator. These match the longer screws that typically come with it (one of my radiators were used and didn't have any). Anything shorter just won't bite into the shroud properly.
Jimi Rose
Reviewed in Canada on September 16, 2024
Bought this to fill in some missing bolts on something. These were so good I replaced all the old bolts with these ones. Top notch.
Mario B.
Reviewed in Canada on May 2, 2024
rouille apres deux semaines
Troy D.
Reviewed in the United States on October 26, 2024
In the past, I had ordered the anodized aluminum version of this that came with the hardware. I ordered this black version for another project and never gave too much thought to the required hardware. For the section of the hinge that bolts into the end of your 2020 aluminum extrusion, it takes a 6 mm by 9mm head bolt.Normally I never give much thought to the head size of a bolt unless I'm ordering flanged bolts or I will add a washer if I need to increase the distribution area or order a truss head, etc. In this case, anything larger than 9 mm will not fit. I looked for over 30 minutes and could not find a 9 mm head, 6 mm bolt. In every single case the standard is 10 millimeters (or larger) and that's too large. Either you have to manually file the head of a bolt down, or buy a package of these with the included hardware, and they don't come in black! Absolutely maddening after ordering a total of eight of these and then not being able to have any hardware to install them. I ended up having to order the aluminum version just for the bolts and then had to spray paint them black. Disgusted at vendors that make their hardware proprietary.The hinges themselves are just okay. They have a tendency to sag unless you really tighten the center pin a lot, and if you tighten them enough so they don't sag they are very tough to move. Unfortunately, there are not many options for 2020 aluminum extrusion.My advice is to order these with the hardware. Again impossible to find the required bolts for installation as they are proprietary. A project that should have been very simple took over 3 weeks to complete as I had to reorder the hardware separately and then paint the bolts black. I ended up spending twice what I needed to and extra time.And one other option not mentioned is to go to a 5mm Bolt, which would probably have a smaller head, but when I ordered these with the hardware everything was 6 mm. No question 6mm is stronger.I would certainly look into this before ordering without the hardware! Vendor was no help. They said just to return. Not surprising as they are probably just the distributor and not the manufacturer. I ordered other bolts and so forth from this company with no issues. This is a case where the consumer gets stuck as you cannot talk with the manufacturer directly.
R. Doug
Reviewed in the United States on October 22, 2024
I'm using this to attach a few farkles and doo-dads to a roof rack on my truck. It has been less than 30 days. I live in Arizona, it's not wet all the time. Wouuld not recommend for exterior/outdoor use.
AZ Desert Dweller
Reviewed in the United States on January 23, 2024
Well-made M6x10mm hex head screws. Way more than I need, but a good deal for under eight dollars.
FAST EDDY
Reviewed in Canada on January 21, 2024
The problems i usually find with these cheaper fasteners it that the fit is usually on the loose side and the finish does not last. On this particular fastener I find the head size to be a bit small other than that they are okay and the price is definitely great.
Paul & Family
Reviewed in Canada on April 5, 2024
Can't say much about a pack of screws. I just started using them for a few projects and I'm happy to have them. They are well manufactured and the finish on them is uniform across the full package. They are not stainless steel of course, as they are magnetic, they do appear to have a good finish on them though. So far no complaints.
Relentless
Reviewed in the United States on December 20, 2023
If you're into making, 3D printing, laser etching, etc, you need to have a maker kit handy. Screws, hex tools, measurement instruments, etc. These screw saved me downtime with one of my printers the other day. One of the fan ducts broke and had to be replaced, but the replacement required a longer M3 screw due to its thickness and recess from the face of the where the duct goes. Thankfully I had these in my kit and worked like charm. Color also matches the flame of the printer so it was doubly helpful. In so far as strength and durability, can't complain.
Recommended Products

$43.36

$ 20 .99 $20.99

4.7
Select Option