Increase the life of your hardware and create clean, high-quality parts with our online countersinking service.
Increase the life of your hardware and create clean, high-quality parts with our online countersinking service.
Starting at just $3 per hole and with accuracy within +/- 0.015″, you’ll never need or want to countersink parts yourself again.
Order 1 or 1,000+. Get up to 70% off when you order in bulk.
Order 1 or 1,000+. Get up to 70% off when you order in bulk.
Upload your CAD file, or use our Parts Builder and choose from a variety of templates.
Upload your CAD file, or use our Parts Builder and choose from a variety of templates.
Free anywhere in the USA, and only $19 to Canada.
Free anywhere in the USA, and only $19 to Canada.
Follow your order from upload to delivery.
Follow your order from upload to delivery.
With our team of highly trained machinists and our state-of-the-art manufacturing technology, we’ve made it easier than ever to design and order countersunk parts. When you upload your design to our app, simply select the “Countersinking” option during the checkout process and you’ll get an instant quote!
Making sure your file meets all our requirements will ensure you get your parts as quickly as possible.
Select your material, apply countersinking, and adjust your quantity to see live pricing updates.
3-5 day shipping
on all standard orders.
from
$9
cart minimum
cart minimum
Countersinking prices are based on the countersunk hole quantity, with a $9 cart minimum. There is no minimum quantity required! Upload your file below to get started.
“As a mechanical engineer, I am always stunned by the impressive lead time and quality of all SendCutSend parts I have received. The interface of the website is easy to use and I am always happy to support US manufacturing.”
Countersinking protects your hardware from long-term wear by allowing the head to sit flush against the surface of your part. Pair it with our hardware insertion services for full assemblies.
Countersinking has a wide range of applications in all kinds of materials. Here at SendCutSend, we currently offer seven materials in a variety of thicknesses for countersinking.
We want to make it as easy as possible for you to get your parts countersunk with SendCutSend. That’s why we’ve put together a variety of guidelines to help you correctly set up your files.
We offer custom laser cutting, waterjet cutting, and CNC routing. We’ll cut your parts with the method best suited for your material.
Add dimension to your projects with our precision CNC bending services.
Select from our catalog of PEM press-fit hardware to add nuts, studs, and standoffs.
Enhance your custom laser cut parts with deburring, anodizing, and plating services.
Give your laser cut parts a bold, long-lasting finish and protective layer in one of 7 colors
Yes, we are laser-fast, but we’re also secure, and offer 100% money-back guarantee on all our parts. You’re in good hands with us.
Our educated and friendly team is here to answer your questions and assist you in getting the best parts possible.
Every thing we offer, from materials to customer service is sourced right here in the United States. We have two locations to get your parts to you as quickly as possible.
All our services come guaranteed. If you’re not 100% happy with your parts, we’ll give you a refund or remake on the spot.
We know your designs are valuable. Your files are 100% secure in our system.
We proudly use hardware by PEM
| SKU | SO-440-8 |
| Thread Size | 4-40 x .250″ |
| Hole size in sheet (+0.003/-.0.000) | .168″ |
| Minimum sheet thickness | 0.040″ |
| Maximum sheet thickness | .125″ |
| Fastener material | Steel |
| Minimum distance hole C/L to edge | 0.230″ |
| When determining the distance between two or more fasteners, you can calculate the distance by the formula, C/L to edge + 1/2 the diameter of the second mounting hole. | .345″ |
| Recommended panel material | Steel/Aluminum |
| Coating type | Zinc |
| Length | .250″ |
| Aluminum material ranges (5052, 6061, 7075) | 0.040″-0.125″ |
| Steel material ranges (CRS, HRPO, HR) | 0.048″-0.119″ |
