8 pcs. 5/8" x 7" Long SS Carriage Bolts 2" Thread Length 5/8"-11 Threads Not 100% sure what grade stainless they are the heads are stamped GP they are most likely 316 only because there were some other similar bolts of the same size but from a different bolt Mfg. that were stamped 316 these came from a now closed wool mill, and they were in stock for use in their dye house. This is surplus to a now closed factory that kept spare parts on the shelf the boxes/parts may show shelf wear and have some dust on them [Please look at all of the pictures they are part of the description] [B1-F1-R5-S2-3]