NAS600-4P pan head machine screw with 4-40 thread, 0.250" length, Phillips drive. 160,000-180,000 PSI ultra high strength.NAS600-4P - Pan head screw, 4-40 x 0.250"SKU: NAS600-4P$1.00PriceThread Size4-40Length0.25MaterialAlloy SteelFinishCadmium PlatedDrill OptionN/AQuantity*Add to CartSpecificationsNAS600-4P 8740 Alloy SteelCross ReferencesNAS600-4PTechnical Details-4PApplicationsNAS600-NAS603 Machine Screws