I have a need to find a replacement screw Luckily thread is nothing esoteric M4 x 8
If a Phillip head .... but the head is fairly wide ~10mm and pretty thin.
Anybody know if there is a name for this type of screw ...
I would call that a bolt of some sort, rather than a screw. Does it taper at all at the 'sharp' end ?. Difficult to say from the pic.
flat wafer head gets you close ...
or low wafer head
Set screw
Machine screw. But then much like the difference between a ship and a boat, I don't think it has ever been detailed when a machine screw becomes a bolt.
Wafer head.
Try ebay with a search of
black wafer head screw m4
Or machine screw?
I was taught a bolt isn't threaded all the way. One that is is a machine screw.
Bolts have an unthreaded section, screws do not, not able to see the pick, but there are a lot of special heads around. Thin profile Cheeseheads were used a lot on some radar gear. Also some serrated head countersunk ones that gripped the holes. I guess somebody will make almost anything if there is a demand for them. My pet hate are security screws with completely illogical tools needed to take them out. Brian
A bolt usually has a 6 sided head on it for a spanner, while a screw has a slot or similar for a screwdriver.
Even setscrews can have different profile and thickness heads of course. Brian
Use a normal screw and a big washer.
Bill
Agreed.
Might you get away with a pan head? Perhaps with the help of a file.
Tell that to a coach screw!
No, a bolt has an unthreaded section. A screw is threaded all the way along.
There are machine screws, and wood screws, and grub screws, and...
try "pan head".
Pan head screw.
When it has a piece of plain unthreaded shank.
A bolt is threaded into a nut to tighten it,
A screw is threaded into a female thread, or as in the case of woodscrews creates it own female thread.
Because a bolt can be used to join components through an unthreaded hole there's no necessity for the thread to go all the way to the end. However this is purely incidental.
Standard pattern woodscrews are plain at the end but are still screws.
Whereas machine screws can be used with nuts through unthreaded holes, in which case they're functioning as bolts.
michael adams
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