10pcs Thread Repair Insert Female M4x0.7 Male M6x1.0 Reducing Nut 303 Stainless

3、Processed with high‑quality materials of stainless steel, wear‑resistant, high‑temperature resistant, and have a long service life. 4、With female thread of M4 x 0.7mm, and male thread of M6 x 1mm, and the length is 10mm/0.4in.

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