Technical Hex screw size
- Thread starter RJF
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Technical Hex screw size
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Why? Wrong approach to the servicing (counterproductive). Just be prepared, buy a set of sockets and don't ask "what size" it is.
Small hexagonal heads like that can be: 4,5 / 5 / 5,5 / 6 / 7 mm for example.
Some are not metric (rare), so it's a 6,3-6,4 mm or so (so 1/4'' hex driver fits directly to the bolt, no sockets needed).
Small hexagonal heads like that can be: 4,5 / 5 / 5,5 / 6 / 7 mm for example.
Some are not metric (rare), so it's a 6,3-6,4 mm or so (so 1/4'' hex driver fits directly to the bolt, no sockets needed).
Most of the tiny hex heads I've encountered have been 5.5mm. Seems a strange size, until it compares almost exactly with 7/32".
Tiny socket sets are often easier to find in inch sizes, although the 7/32 seems to be the only one I've used in 40 years.
If you've got some Blu-tack, or similar, press it onto the head, and remove carefully. The indent should be measurable. Kids plasticene works well to, probably better, but chewing gum, not so much.
Tiny socket sets are often easier to find in inch sizes, although the 7/32 seems to be the only one I've used in 40 years.
If you've got some Blu-tack, or similar, press it onto the head, and remove carefully. The indent should be measurable. Kids plasticene works well to, probably better, but chewing gum, not so much.
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