M21143/1-38 | مسامير دبوس عسكرية | فولاذ سبائكي (50 / عبوة)

The fit on these alloy steel pins is noticeably tighter than the generic hardware store ones I've used before, which makes aligning compressor housings much more precise. Fifty pins in the pack means I won't run out mid-project, and the mil-spec consistency is obvious from the first piece I inserted

Took my time measuring before ordering, and these alloy steel pins slid into place with a perfect press fit for my fixture alignment. The hardened finish held up without a single burr during installation.

Installed a set of these for a jig fixture alignment, and the 0.0003 inch tolerance held perfectly on every hole. No reaming needed.