Comparison : Item # BB-31081, Machine Screw, Round Head Phillips, Zinc Cr+3 (Inch)
Item # BB-31082, Machine Screw, Round Head Phillips, Zinc Cr+3 (Inch)
Item # BB-31083, Machine Screw, Round Head Phillips, Zinc Cr+3 (Inch)
Item # BB-31084, Machine Screw, Round Head Phillips, Zinc Cr+3 (Inch)
Item # BB-31085, Machine Screw, Round Head Phillips, Zinc Cr+3 (Inch)