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Thank you all for the input! My plan is to move forward with the MAC8 fasteners found here: http://www.mac8usa.com/threaded-insert-TH-lev2.php The press-in inserts btrueblood linked too look interesting, but I need to have electrical connection to these holes. I'm afraid the press-in...

Thank you for the replies! Good find, btrueblood, that's perfect. From the site you linked to: The mounting holes in the PCB were sized to accept threads (0.067-inch hole for 2-56 screws). I’ve been threading holes in PCBs for many years. I assumed that the plating on the interior of the hole...

Thanks for the quick reply, Dan! We're actually using PEMNET fasteners right now, that's a great site. Unfortunately they all seem to have a lip that's about 1/8" high, and I'm hoping to eliminate that and make it as close to flush with the surface of the PCB as possible. Someone pointed me...

I took the test last April--I had no idea they were looking into changing the format. I agree with SandCounter about using the exam specification to break down which topics to study and prioritize based on the high yield topics. I took the ME exam and the MERM seemed to prepare me very well...

Hello! Does anyone know the name of this component of the top of their heads? I'm working on designing a product that requires 2-56 threaded holes in a PCB, and I need it to be as flush to the surface of the board as possible due to physical size constraints. The component in the photo looks...

Hi Screwman1, Thank you very much for the reply! It's great to hear from someone specifically in the industry. I totally agree, I'd much rather leave it up to the supplier and not get involved in the details. Unfortunately, the component I'm designing is non-standard for numerous other...

Hi everyone, thank you for the quick replies! I know there is a proprietary "snake eyes" brand (by "Tamper Proof," the company berkshire linked to), but there are also lots of generic "spanner head" drives on the market. I was hoping these generics were standardized and I was just missing the...

Hello! I am designing a fastener that I'd like to use a #4 spanner head screw drive on, but cannot find any documentation around what diameter to make the holes. I found this document from Fastenal that lists all the dimensions and tolerances I need except for the diameter...

Thank you, Carlos! I will check into those database websites: I've used matweb before, but have not seen the others.

Those Zytel materials look like they'll do the trick! Thank you, Pud!

Thanks for the replies! I'm working my way through the list ornerynorsk sent to see if any of these materials match my required properties. Pud, the water temperatures range from 15 to 250°F and it will be constantly submerged.

Hello! I am designing a product that is inserted into potable water applications. I am looking for a high strength (~16 ksi yield strength, 1000 ksi elastic modulus) plastic that is NSF-61 certified. I have tried Delrin 150 NC010 (10 ksi yield strength, 420 ksi elastic modulus), but it ended...