SAE grade 8 Hex flange bolt Middle carbon steel zinc plated Heat ... 3/4 1/4x1 hex flange boltIFI-111 2002 standardSAE grade 8 C1045 BZPAll Specifications Supply:Thead size: 1/4, 3 ... /4Length: 1/2 to 6 inch ( for thread 3/4)Grade 5, 8 or customized featuresMaterial could be CS or SS304 ... could be CS, SS302, SS304, SS316Grade A2 or A4 SAE grade 8 hex flange bolt