6-19X5/16 #5HD Phillips Pan High Low Screw Fully Threaded Black Oxide (Pack Qty 10,000) BC-0605HPPB

For use in plastic, nylon, wood or other low-density materials. Thread design reduces driving torques, enhances resistance to thread stripping, improves pullout strength and lessens risk of cracking the work piece Steel: 1019-1022 or equivalent steel. Stainless: 410 martensitic or 18-8 austenitic stainless steel Steel: Rockwell C45 minimum