... 2) DIN6915 M16-M30 8.8S,10.9S 3) AS1252 High Strength Nut for Steel Structure Standards: 1) ASTM A ... 10.9S 3) AS1252 4) BS4295Product information Description(TC bolt) Torshear type high strength bolts for steel structureMaterialAlloy steel ,carbon steel, stainless ... , Box, Bag, PalletQuality AssuranceISO 9001 Our factory Packing Process Quality Management Systerm Certificate of Approval :