Name for lozenge head screws

[David Billington]

I have a small FJ Edwards guillotine likely for jewellers as the blade
is about 6.25" wide and I have just made a guide to suit the T slot to
keep the sheet square to the blade. The T slot has blind ends and the
only way a T nut could be inserted would be to dismantle the guillotine.
I have seen in the past screws with lozenge shaped heads which allow
them to be inserted into the narrow upper section of the T slot and then
rotated to engage the wider slot but don't know what they're called,
I've tried searching and haven't found anything. I made my own in the
end and all works fine but it would be useful to know what they're
called if I need any more in the future.

[mick]

I have a small FJ Edwards guillotine likely for jewellers as the blade is
about 6.25" wide and I have just made a guide to suit the T slot to keep the
sheet square to the blade. The T slot has blind ends and the only way a T nut
could be inserted would be to dismantle the guillotine. I have seen in the
past screws with lozenge shaped heads which allow them to be inserted into
the narrow upper section of the T slot and then rotated to engage the wider
slot but don't know what they're called, I've tried searching and haven't
found anything. I made my own in the end and all works fine but it would be
useful to know what they're called if I need any more in the future.

perhaps this search might be of help.
https://www.google.co.uk/search?q=t+slot+studs&tbm=isch&source=hp&sa=X&ved=2ahUKEwiXhI_PxNfjAhWUolwKHYqNDBkQsAR6BAgEEAE&biw=1920&bih=916

[David Billington]

Post by mick

Post by David Billington
I have a small FJ Edwards guillotine likely for jewellers as the
blade is about 6.25" wide and I have just made a guide to suit the T
slot to keep the sheet square to the blade. The T slot has blind ends
and the only way a T nut could be inserted would be to dismantle the
guillotine. I have seen in the past screws with lozenge shaped heads
which allow them to be inserted into the narrow upper section of the
T slot and then rotated to engage the wider slot but don't know what
they're called, I've tried searching and haven't found anything. I
made my own in the end and all works fine but it would be useful to
know what they're called if I need any more in the future.

perhaps this search might be of help.
https://www.google.co.uk/search?q=t+slot+studs&tbm=isch&source=hp&sa=X&ved=2ahUKEwiXhI_PxNfjAhWUolwKHYqNDBkQsAR6BAgEEAE&biw=1920&bih=916

Thanks for that, now I have an idea what they're called for future
reference. The T slot has a 1/2" narrow width so an off the shelf
solution wasn't suitable because of various constraints so I ended up
making my own with an M6 thread as a M6 indexing clamp handle was small
enough to clear various other features on the guillotine.