Hex Bolts DIN 912 Grade 12.9 and Hex Head Bolts DIN 931/ DIN 933 Grade 4.8/8.8, Carriage bolts, Large flat head bolts, Flange head bolts andNon-standard bolts.
Material: 4.8/8.8 -- Carbon Steel, 12.9/10.9 ----- Alloy Steel
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