[Double End Threaded]: M6 to M8/M8 to M10/M10 to M12 double end threaded bolts. [304 Stainless Steel]: Made of high quality strong 304 stainless steel, with a high strength and durability, and not easy to deform. [Size]: Both the overall length of M6 to M8 bolt and M10 to M12 bolt is 80mm and threaded length is 40mm. The overall length of M8 to M10 bolt is 55mm, M8 thread length 20mm, M10 thread length 35mm. [Application]: Fit for connecting scratch construction columns and attachments of different thread size. [Package List]: 2Pcs double end threaded bolts. [Note]: Please confirm the bolt size before purchase. Material 304 Stainless Steel Thread Size M6 to M8/M8 to M10/M10 to M12 Colour Silver Number in Pack 2 Brand Unbranded/Generic .