M4 Silver Steel Thumbscrews
These silver stainless steel thumb screws are used to attach the small leather band tabs to frames. With a thread size of M4 (4mm), these compact screws make changing and attaching bands easy and quick.
With a thread length of 6mm long, these thumbscrews are suitable for frames with internally threaded holes without any scales.
This is for a pair of thumbscrews.