M2 M2.5 M3 M4 Threaded Adapter Insert Male Female Reducer Screw Nut A2 Stainless Specification: Type: Threaded Adapter Inserts Material: A2 304 Stainless Steel Sizes = Female Thread x Male Thread x Length Female Thread: M2 M2.5 M3 M4 Thread: Metric / Coarse Thread Note: - Pls allow minor errors due to manual measurement. Thanks for your understanding - Due to shooting angle, light， display and other reasons, the colors displayed in the picture may be slightly different from the actual product. Pls refer to the received product.
eBay