Where can one order posidrive screws? - Page 1
Forum section: electronics / repair

author: aarons
author_rank: Regular Contributor
timestamp: August 09, 2025, 12:28:15 am
content: I have searched my usual go-to fastener places for replacements for missing or stripped screws on some old HP and tek equipment, but come up empty. Does anyone have a good source for these?

author: Stray Electron
author_rank: Super Contributor
timestamp: August 09, 2025, 02:10:34 am
content: Years ago i bought specialty screws from a commercial screw dealer in Orlando. They had every kind of screw known to man, including the little PH screws used in the HP 41 calculators. I don't remember the name of the place but it was just off of south Orange Blossom Trail toward Kissimmee. The only problem was that many of the smaller screws only came in boxes of 1,000 or even 10,000. 10,000 HP-41 style screws costs about $137 at the time. (And the HP-41s used three different lengths of them!)

author: Dougmc
author_rank: Contributor
timestamp: August 09, 2025, 02:34:53 am
content: So Hillman which most hardware stores carry has thishttps://shop.hillmangroup.ca/ccrz__ProductDetails?sku=230-303&cclcl=en_USSo since it's automotive maybe check automotive storesHave a good day

author: David Hess
author_rank: Super Contributor
timestamp: August 09, 2025, 03:40:41 am
content: My solution for Tektronix is to replace Pozidriv with hex or Torx.

author: aarons
author_rank: Regular Contributor
timestamp: August 09, 2025, 07:25:54 am
content: Replacing them with torx or hex would mean replacing all the screws with torx or hex, because I don't want my equipment to have a few oddball screws that require a different driver. I've considered it, but it really would be last resort sort of thing.

author: David Hess
author_rank: Super Contributor
timestamp: August 09, 2025, 11:58:58 am
content: Quote from: aarons on August 09, 2025, 07:25:54 amI only replaced all of the screws of like type at once, so for instance all of the truss screws holding the cover on.

author: Jeff eelcr
author_rank: Frequent Contributor
timestamp: August 09, 2025, 01:16:49 pm
content: Skycraft, they have moved. (Surplus) has a lot of screws.5021 Edgewood Dr.Orlando FL 32810407-628-5634

author: tooki
author_rank: Super Contributor
timestamp: August 09, 2025, 01:58:48 pm
content: Quote from: aarons on August 09, 2025, 12:28:15 amI don’t mean this ironically or sarcastically in any way: if you are doing text searches, you may have better luck searching with the correct spelling, PoziDriv. (Or with the common abbreviation, PZ.) Many online stores have search engines that aren’t very smart and won’t make the connection, so to speak.

author: jfiresto
author_rank: Frequent Contributor
timestamp: August 09, 2025, 02:13:58 pm
content: I searched McMaster-Carr for Pozidriv screws. I would have thought with what they can charge that they would be happy for some more business. I could find nothing, just nothing.

author: tszaboo
author_rank: Super Contributor
timestamp: August 09, 2025, 02:17:20 pm
content: They likely have Phillips bolts anyway.Screw is something that you drive into a "twobyfor"And yes, there is a difference between the Pozi and the Phillips, they require different drivers.

author: themadhippy
author_rank: Super Contributor
timestamp: August 09, 2025, 02:24:05 pm
content: Quoteunless its a machine screw

author: tszaboo
author_rank: Super Contributor
timestamp: August 09, 2025, 02:37:33 pm
content: Quote from: themadhippy on August 09, 2025, 02:24:05 pmOh yes, I remember now that the english language is really bad at differentiating these.

author: TimFox
author_rank: Super Contributor
timestamp: August 09, 2025, 02:46:29 pm
content: Wood screw, machine screw, self-tapping screw, …By the way, I bought a few “Reed & Prince” drivers from Craftsman years ago to use with -hp- and other equipment: resembles Philips, but only one size. This was after our local -hp- guy suggested that back in the 1970s. However, when I lose one when opening the case, I generally replace it with a 6-32 flat head Philips screw that is easy to obtain.I was surprised to find many PosiDriv tools, but no screws, in the McMaster catalog.

author: David Hess
author_rank: Super Contributor
timestamp: August 09, 2025, 06:36:32 pm
content: Quote from: TimFox on August 09, 2025, 02:46:29 pmI finally got tired of rounding out Pozidriv screws on old Tektronix equipment and bought some Wera Pozidriv bits earlier this year and am very happy with them.Huh, I thought McMaster-Carr would have Pozidriv screws if anybody did, but they sure only have bits and drivers. I have been using boltdepot.com and they do not have Pozidriv either.

author: jfiresto
author_rank: Frequent Contributor
timestamp: August 09, 2025, 06:46:14 pm
content: Quote from: David Hess on August 09, 2025, 06:36:32 pmCould it be that they are too easily confused with the original Phillips drive until you notice the differences?

author: David Hess
author_rank: Super Contributor
timestamp: August 09, 2025, 10:12:48 pm
content: Quote from: jfiresto on August 09, 2025, 06:46:14 pmMaybe, but they are marked. Are all of them marked though?I suspect most people, or at least most Americans, just ignore the difference and risk rounding them off with a Philips driver.I finally bought a set of Pozidriv drivers because only recently have I been repeatedly disassembling and reassembling the same Tektronix instrument for repair purposes. For more general refurbishing, I have tended to just replace them with Torx or hex machine screws if necessary, so I never looked for a source of Pozidriv machine screws.

author: themadhippy
author_rank: Super Contributor
timestamp: August 09, 2025, 10:21:30 pm
content: Is it phillips or is it pozi drive? nope its jis

author: David Hess
author_rank: Super Contributor
timestamp: August 09, 2025, 10:50:58 pm
content: Quote from: themadhippy on August 09, 2025, 10:21:30 pm... And marked with a single dot, hopefully.