Door trim screws question

[Jim Mackell]

My granddaughter had one of the door trim pieces partially eaten by her dog! I pried off the trim, it's standard 4 inch nominal. It was attached with those itty bitty tiny screws which remain attached to the rest of the frame. I can use vice grips to unscrew them but I'm wondering - what is the head size for these little SOB's? I'm not on site right now but I have an assortment of various junk which might or might not work. Any ideas?

[Richard Coers]

The ones I use are #1 square drive.

[Cameron Wood]

Older, #1 square drive. Recent, could be #10 Torx.

Interesting side note: I redid a place that had very high end cherry cabinets and all manner of built ins and trim- must have cost a fortune, including an elaborate ceiling sort of latticework from 2X2 cherry.
Most of this was installed with trim head screws, but some places where long screws were needed, 3 1/2" phillips head ones had their heads ground down to make them trim head. I'm still making stuff from all that wood.

[Tom M King]

Or T17 TORX for some of the larger ones. Probably like these though, with T10's.

https://www.amazon.com/Saberdrive-White-Screws-Approx-Pieces/dp/B08PMFCGB5/ref=sr_1_3_pp?crid=1VBYTZGJYI4X4&dib=eyJ2IjoiMSJ9.3hT3evCB-sFEATwTpMv_2USt3HJ6w3ZXQr1WFQYUv9ZdFeF07BDvR-zz6LYXaKpcCIbef7YGT0_lPrnno2dQ1lPTpqswF8FvBBb23Eng zhwg5CddgHQl9KGxjEYirH3M5b4Lt_dpitpwktzaMmvKQhCCPm vdA-Puj1g-4MLZPcH6iQkG4aXG2qeNi68Tf0NbrbKpNrKk7WPWlwQvpGZh8i ut4mlgZVeDNhpoXeKGGGU.WKo6UDb3Q2Wns8A3o2QHymw8YUbH gkMTdLlNMbYFYE0&dib_tag=se&keywords=trim+head+screws+2+1%2F2&qid=1713140917&sprefix=trim+head+screws%2Caps%2C119&sr=8-3

[andrew whicker]

The casing or the jamb? I've never thought of using screws on the casing..

[Cameron Wood]

Or T17 TORX for some of the larger ones. Probably like these though, with T10's.

https://www.amazon.com/Saberdrive-White-Screws-Approx-Pieces/dp/B08PMFCGB5/ref=sr_1_3_pp?crid=1VBYTZGJYI4X4&dib=eyJ2IjoiMSJ9.3hT3evCB-sFEATwTpMv_2USt3HJ6w3ZXQr1WFQYUv9ZdFeF07BDvR-zz6LYXaKpcCIbef7YGT0_lPrnno2dQ1lPTpqswF8FvBBb23Eng zhwg5CddgHQl9KGxjEYirH3M5b4Lt_dpitpwktzaMmvKQhCCPm vdA-Puj1g-4MLZPcH6iQkG4aXG2qeNi68Tf0NbrbKpNrKk7WPWlwQvpGZh8i ut4mlgZVeDNhpoXeKGGGU.WKo6UDb3Q2Wns8A3o2QHymw8YUbH gkMTdLlNMbYFYE0&dib_tag=se&keywords=trim+head+screws+2+1%2F2&qid=1713140917&sprefix=trim+head+screws%2Caps%2C119&sr=8-3


You scared me there. I don't believe there is a T17. I already carry around six of those things in my pocket:(.

Recently I went through the same thing as the OP- trying to identify T10 trim head screws buried deep in exterior trim.

[Tom M King]

The primary use for the T17 screws is trailer skin screws, also sometimes called tamperproof.

Don't try to ever re-use one of those stainless trim screws. They're very soft and the head can bugger up without it seeming like it should have making it impossible to use the driver to run it either way.

I have exactly one T17 driver bit, but it's not this one. We had a horse trailer that used them over 20 years ago.

https://www.walmart.com/ip/K-Tool-International-KTI18217-T17-X-1-4-Drive-Tamperproof-Torx-Bit-ea/586996810

[Cameron Wood]

The primary use for the T17 screws is trailer skin screws, also sometimes called tamperproof.

Don't try to ever re-use one of those stainless trim screws. They're very soft and the head can bugger up without it seeming like it should have making it impossible to use the driver to run it either way.

I have exactly one T17 driver bit, but it's not this one. We had a horse trailer that used them over 20 years ago.

https://www.walmart.com/ip/K-Tool-International-KTI18217-T17-X-1-4-Drive-Tamperproof-Torx-Bit-ea/586996810



Ugh, I hope I never come across any of those...

[Tom M King]

Thankfully, I don't think they're used for anything any more, but I wouldn't be surprised to see some turn up on old stuff.