5/16-18x2-1/4" Grade 8 Hex Flange Frame Bolts Phos & Oil

Part Number: HFLFB31C2258P
Diameter/Pitch: 5/16"-18
Length Under Head: 2-1/4"
Grade: Grade 8
Finish: Black Phosphate & Oil
Coarse / Fine Threads: Coarse
Partial / Full Threads: Partial
Wrench Size: 1/2"