●[DOUBLE ENDED THREAD]: Double end threaded bolt M8 to M10. ●[304 STAINLESS STEEL]: Made of high quality strong 304 stainless steel, with a high strength and durability, and not easy to deform. ●[Size]:The total length is 55mm, M8 thread length 20mm, M10 thread length 35mm. ●[Application]: Suitable for connecting scratch construction columns and attachments with different thread sizes. ●Package list: 2pcs double end threaded bolts.