Reply to "Upholstery Trim Screw"

nateMember

After looking over more screw charts, my 2.5mm OEM size guess is likely wrong. (Below 3mm, considering normal size tolerances, it seems hard to discern metric hardware from familiar US sizes). Here are a few number, fwiw:

Tolerance for a 2.6mm OD screw is 2.43-2.57mm (0.096-0.101")
Tolerance listed for #3 size is often identical.

Tolerance for a 2.9mm OD screw is 2.76-2.9mm (0.108-0.114")
Tolerance listed for #4 size is often identical. Nomimal size is 0.112"

Many charts show a metric 2.2mm and 2.9mm with nothing between. Others show 2.6mm between, but I didn't see any showing specifically 2.5mm.

For JT, I'm curious what your originals measure? If they are only slightly smaller than hardware store #4s (i.e., within tolerance) maybe they are basically the same part?!

Hope this has not muddied the water. Appreciate info from anyone with more knowledge in this area than I

7/6/187:13 PM

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