Does anyone recognise this security screw? Found in South West England on a playground gate.
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2Maybe it's one of the variants of the Ultra-Drive Security Machine Screw. Apparently the exact hole design is unique to each customer.– Andrew MortonAug 20, 2022 at 12:57
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1Reminds me of a phone conversation, back when I used to see things like that on a daily basis…"Guys, you know those fancy new screws you just spent a fortune on? Did you know you can just use a 4mm security hex?" ….Long silence ensued...– TetsujinAug 20, 2022 at 14:29
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2…and another thing - if the steel is brittle enough, you can snap out the security pin ;)) Just bend one way, then back again should be enough. Then a screwdriver or non-security hex will fit.– TetsujinAug 20, 2022 at 14:41
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1Also, once out, replace with screws with a normal (slot, philips, hex or torx) head.– Solar MikeAug 20, 2022 at 15:07
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1This is on a playground gate. I'm not going to destructively remove it! I was just curious.– TimmmmAug 20, 2022 at 15:18
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1 Answer
It appears to be one of the variants of the Ultra-Drive Security Machine Screw.
Apparently the exact hole design is unique to each customer, and correlating to your comment that they were found in SW England, made by the U.K. company Fastenright Limited (no connection to me).