Hi all, Looking to buy some screws,hoping you may be able to help me with some sizes. found some on the screwfix website which says 6ga x 1" & 8ga x 5/8 does the (6ga & 8ga) represent the head size,would the bigger the (ga) be the bigger head size,as im ok with normal screw sizes like (3.5 & 4.5 etc) hope you can help me understand these sizes or is it just common sense. heres a link to the ones ive found http://www.screwfix.com/p/quicksilver-woodscrews-double-countersunk-6ga-x-1-pk200/15680 thanks all any help would be a help thanks andy
OMG,is this a wind-up? Apologies if it ain't. I'm an old * ,but even I work in Metric, but can still relate to Imperial. 6 x 1 inch is roughly 6x25mm screws. Edited due to unsuitable language
Number 4 screws are 3mm Number 6 screws are 3.5mm Number 8 screws are 4mm Number 10 screws are 5mm Number 12 screws are 5.5mm And number 14 screws are 6mm So a 3x25mm screw = 4 ga x 1 inch
i have a slightly different take i have never seen a no9 screw lol i start the same at the bottom end no4=3mm no6=3.5mm no7-4mm no8=4.5mm 10=5mm 12=6mm as far as i know there is no no9 screw or 5.5mm screw but could be wrong lol so my conversion is just giving each screw size a partner size
A Number 9 woodscrew. http://www.screwfix.com/p/goldscrew...sunk-4-5-x-30mm-pk200/18758?_requestid=126702 3.9mm is technically a Number 7 woodscrew.
I think everyone bar the original person who posted this up didn't bother to read the question properly, which was... "does the (6ga & 8ga) represent the head size,would the bigger the (ga) be the bigger head size" The posts that follow the initial question have done nothing more than 'hijack' the thread... and go on about the THREAD size ! So the question hasn't actually been answered. I'm stuck with a similar problem in that I need pan headed 8x25mm 'philips' screws as all of the original screw were lost/misplaced by the previous owner, BUT...they must not be more than 5mm dia across the head as they fit inside a thin walled fitting that cannot be opened up for a larger headed screw. So far, every 8x25mm screw I've come across has had either an 8mm or a 10mm dia head to them !
Absolutely agree. I need 6x15 or 7x15 with the largest diameter pan head I can get. But head diameter is not specified anywhere :-(
I didn’t want to start a new thread because I was just commenting that the same problem still exists. The specification for screws does not include the head diameter.
Just change to metric - much simpler. But the head size is unlikely to be specified. The head size is usually dictated by the purpose of the screw; such as 'dry-wall screws' or chipboard screws.
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