What thickness of leather do these fit?

The 3/8 inch post is the total span, so plan on roughly 1/4 inch of leather or less once the two heads take up space. Thicker stacks need a longer post.

Do I need a special tool to install them?

No special press is needed. A T-15 star bit or a flathead screwdriver turns the screw while you hold the post side.

Will they come loose on a belt or bag?

The grippers under the head bite into the leather and help hold the screw. Check them occasionally on items that flex a lot, like belts.

Yes. Unlike rivets, Chicago screws unscrew, so you can swap straps or open a case and reassemble it.

What size hole do I punch?

Punch a hole that matches the 3/16 inch post diameter so the post passes through snugly without tearing the leather.

Brass or nickel finish?

Both are brass underneath. Pick solid brass for a warm antique look or nickel brass for a silver tone that matches hardware.

Weaver Leather Supply #D5041 Chicago Screws

Last price we saw

$21.38at Weaver Leather Supply, last seen Nov 2

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Our take on the Weaver Leather Supply #D5041 Chicago Screws

These are Weaver Leather #D5041 Chicago screws: two-piece brass fasteners that join layers of leather and can be unscrewed later. The post is 3/16 inch in diameter and 3/8 inch long, driven with a T-15 star bit or a flat head, and the grippers under the head help lock the screw in place. They suit belts, bags, cases and bridles where you want a removable rivet rather than a permanent one.

Best forLeathercrafters building belts, bags and cases