Things are really getting crossed up here. This is the lyre thread, not the stripped leg screw thread. What is a button/wedge? Is it the locking cam? I am assuming that it does not have a cam since you asked for 'screws', more than one; which would made it fastened with two screws. The year of manufacture would determine whether it is a wood screw or a threaded to the head screw. Any #18 or 20 x 3" wood screw will work. A 2.25" screw would not clear the top plate of the lyre, that would be for the low-profile cam/button/wedge thingy. Have they gone back to that for the lyre? -- Regards, Jon Page
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