Hex Bolts (1).Standard:DIN931/933 ,ANSI,BSW,JIS. (2).Size:M5-M20;1/4"-5/8" (3).Material:carbon steel (4).Length:6-300mm.. DetailsItem nameelectric power fitting-U boltsmaterialCarbon steel, stainless steel grade4.8/8.8/9.8/10.9/12.9 sizeM5-M6Surfaceplain,zinc plated,black oxide,hot dip galv.etcD/T25-30days after order confirmationCustomizeddifferent sizes and colors/customer's design and LOGO ...