Comparison : Item # BB-38837, 12.9 DIN 912, Zinc Bake Cr+6, Alloy (Metric)
Item # BB-38838, 12.9 DIN 912, Zinc Bake Cr+6, Alloy (Metric)
Item # BB-38839, 12.9 DIN 912, Zinc Bake Cr+6, Alloy (Metric)
Item # BB-38840, 12.9 DIN 912, Zinc Bake Cr+6, Alloy (Metric)
Item # BB-38841, 12.9 DIN 912, Zinc Bake Cr+6, Alloy (Metric)