Jump to content
Sign in to follow this  

Holt security screw removal: Sears Pong / Sega EA carts

Recommended Posts

I recently acquired a Dedicated Super Pong IV system & needed to open it up.


the screw in the battery compartment I discovered from reading these forums is called a "Holt" brand security screw

I happened to be placing an order with Best Electronics & they have never carried a screwdriver or security tip to remove this little bugger

E-bay has one for $19.99, but a little pricy for my needs!

so I made my own & took some pics: 8)

Items I used:[list]
[*]3 paperclips
[*]an electrical wire-nut (with spring inside)
[*]a ballpoint pen
[*]electrical tape
Tools I used:[list]
[*]needle nose pliers with cutters
[*]1/8" drill bit in a Dremel tool

I drilled a hole in the top end of the wire-nut
straightened the 3 paperclips and as evenly as I could twisted them into the wire-nut so they would protrude through the top end I drilled probably protruding an 1/8"


I used an electrical wire-nut because, 1. I have plenty of them around & 2. the spring inside would hold the paperclips firmly
I used paperclips because 1. I have plenty of them around & 2. they are less pliable than copper wire so they will hold up better

trial & error one wire-nut was used & spring inside to loose , another was new & paperclips twisted & broke before protruding though end I drilled.

I emptied the ball point pen to tape to wire-nut so I wouldn't get stabbed buy cut ends of paperclip from bottom of wire-nut & gave me a bit of something to hold on to.


when pressing down to loosen the screw in the console, it seemed to form itself to fit better on the screw


The first image is actually the one I made to work on Sega Genesis EA carts with a similar Holt type security screw ( different size it appears )


the tines on the tip I made need to protrude out far enough to reach the screw that is recessed into the cartridge


I was able to re-install the all screws as well as remove them:

on the Pong console I wanted to maintain the integrity of a classic console
on the Sega cart ... just to see if it could be done. ... I discovered to was easier removing than replaceing you'll want to make sure it's seated all the way in.

I hope this helps:


Share this post

Link to post
Share on other sites
If I recall correctly that screw is called tri-groove, I bought a few different size bits for them a few years ago. I think I got mine from grainger.


Share this post

Link to post
Share on other sites

Whelp, those are a bit different than the Nintendo triwings. You might try making your own tool buy notching a mini flathead (like they use for eyeglasses) and using the outer prongs in two of the slots.


EDIT: just saw your photo. That's quite genius! :D


Share this post

Link to post
Share on other sites

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.

Reply to this topic...

×   Pasted as rich text.   Paste as plain text instead

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.

Sign in to follow this  

  • Recently Browsing   0 members

    No registered users viewing this page.

  • Create New...