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Post by Deleted on Oct 31, 2021 16:43:25 GMT
I need a long screw. In fact I need to have quite a lot of long screws.
I'm working with 4 inches.
There seem to be a lot of different types of screw available with different benefits and disadvantages.
I was hoping that as I have little experience with long screws perhaps someone could steer me in the direction of the right type.
It's for hard wood.
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Post by Telemachus on Oct 31, 2021 16:48:02 GMT
I need a long screw. In fact I need to have quite a lot of long screws. I'm working with 4 inches. There seem to be a lot of different types of screw available with different benefits and disadvantages. I was hoping that as I have little experience with long screws perhaps someone could steer me in the direction of the right type. It's for hard wood. Well firstly, if it’s a hard wood then you’ll need to drill a pilot hole, otherwise there is risk of splitting the wood. Other than that I’d use a cross head screw, presumably you want countersunk (but maybe not?). |
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Post by Deleted on Oct 31, 2021 16:52:20 GMT
It will be posidrive and I will do pilot holes but there are so many different types of screw available I just wondered if there are some which are better than others.
I've had the heads break off screws sometimes. I want it to come apart without the screw heads cracking off.
Ideally stainless but when I have used stainless previously the drive socket was soft so impossible to remove.
It's for fixing a shower tray onto a hardwood upstand fixed to a hardwood base. Needs to be removable in case of problems with the drain.
I wonder if bolting might be a better approach. Screws could work ?
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Post by Telemachus on Oct 31, 2021 17:18:06 GMT
It will be posidrive and I will do pilot holes but there are so many different types of screw available I just wondered if there are some which are better than others. I've had the heads break off screws sometimes. I want it to come apart without the screw heads cracking off. Ideally stainless but when I have used stainless previously the drive socket was soft so impossible to remove. It's for fixing a shower tray onto a hardwood upstand fixed to a hardwood base. Needs to be removable in case of problems with the drain. I wonder if bolting might be a better approach. Screws could work ? Stainless, if it’s to be used in a damp environment. There are different grades of stainless but either are quite hard so I wouldn’t have thought softness of the screw socket would be an issue. But it is brittle so screw head shearing off might be an issue. How about brass? Depends on how much strength is needed. Big enough pilot hole makes it easy to insert and remove, but obviously reduces the grip. Lubricating the thread with candle wax or soap can help. |
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Post by Deleted on Oct 31, 2021 17:28:43 GMT
I quite like the look of the stainless hex head screws. Rather expensive for screws but could be just the ticket ! www.ebay.co.uk/itm/121627623938And for 4 inch it would need to be M8 which is a bit OTT. Might be worth looking at as bolting would mean a requirement to get to the nut or use one of those awful ikea type spiked things which SO does not do it for me. I was intending to fix the tray down with about 8 screws per side. At 65p each 32 of them would come to about £20! ETA I see they do 30 for £12.67. that's not too bad then. Hex head is going to be a nice solution. |
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Post by bodger on Nov 1, 2021 8:41:29 GMT
................. I wouldn’t have thought softness of the screw socket would be an issue.
I beg to differ. When using "marine grade" A2 screws the crosshead as often as not gets worn while inserting the screw and cannot be removed without extensive surgery. The secret is to insert a "gold screw" of the same size and remove it, then insert the A2 screw and do not drive it too tight.
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Post by bodger on Nov 1, 2021 8:43:26 GMT
I quite like the look of the stainless hex head screws. Rather expensive for screws but could be just the ticket !
hex head are much more resilient. good choice. |
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Post by bodger on Nov 1, 2021 8:45:13 GMT
I need a long screw. I'm working with 4 inches.
I doubt those of a receptive nature would agree that four inches could be described as a long screw.
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Post by JohnV on Nov 1, 2021 9:11:07 GMT
but always pilot !!!
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