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The 316 stainless steel round shim has an unpolished (mill) surface, meets American Society for Testing and Materials International ASTM A666 specifications, and has a standard tolerance. The 316 stainless steel grade provides better corrosion resistance than 304 stainless steel. It may be slightly magnetic.
Shims are thin pieces of material placed between objects for a variety of uses, including added support, improved leveling, increased insulation, tighter seals, or better spacing. They also can be used to fill gaps between machine parts that are prone to wear. Shapes include round, notched, and slotted.
Corrosion resistance describes the material's ability to prevent deterioration caused by atmosphere, moisture, or other medium. Wear resistance indicates the ability to prevent surface damage caused by contact with other surfaces. Hardness (commonly measured as indentation hardness) describes its resistance to permanent surface deformation.
jay
2025-08-05 12:20:38
Used this on my 10/22 to get my flash hider to line up correctly. I was off about a quarter rotation with the factory threading, but this did the job to index it right. Could stand to have a thousandth of an inch more maybe, but it was close enough in the sizes they come in.
desmobob
2025-08-04 20:21:46
The product is ideal for precision shimming needs. I bought them to help shim the arbor on a Uberti black powder cap-and-ball revolver. I would have given a five-star rating except the shims were packaged in a thin plastic bag and almost half of them were folded or bent.
Trevor Munsell
2025-08-03 21:12:03
Used these to shim regulator in my Umarex Gauntlet for more power. Best price is here on Amazon.
D M
2025-06-19 18:02:07
Overpriced
ALW
2024-11-27 14:29:36
This is an excellent hardened shim for my purposes. Wasn’t able to find this shim anywhere else.
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