5/8"-18 Grade 8 Hex Nut - Yellow Zinc Plated 5/8-18 grade 8 hex nut (fine) yellow zinc HN85818 $0.477/ea
5/8 Grade 8 SAE Extra Heavy Flat Washer 5/8 sae grade 8 extra thick flat washer (rc 38-45) zinc yellow HSFW858 $0.858/ea
5/8 Grade 8 SAE Flat Washer - Zinc Yellow Plated 5/8" grade 8 sae flat washer - yellow zinc SFW858 $0.147/ea
5/8"-18 Grade 8 (C) Prevailing Torque Lock Nut - Plated 5/8"-18 grade 8 (c) torque lock nut (stover) - plated TLN5818 $0.489/ea
5/8"-18 Grade 8 (C) Nylon Insert Lock Nut Yellow Zinc Plated 5/8"-18 grade 8 (c) nylon insert lock nut - yellow zinc NLN85818 $0.588/ea