#10-16 x 5/8 in. Hex Slot Hi-Hat Serrated Sharp Point Screw is ideal for all HVAC metal-to-metal connections. High slotted head fits sockets better and sharp point penetrates metal quickly. Self-tapping threads ensure strong holding power while the zinc plated finish protects the job’s appearance.Provides secure metal to metal fastening without the need to pre-drill and reduces cam-outs for high performance drive surfaces and recessPrecise point designed to drill, tap and fasten all in 1 motionHigh performance drive surfaces reduce cam-outs to penetrate surface the first time for easy installationZinc plated finish protects the job’s appearanceNo tool slippage even with older sockets and worn bitsHighly versatileCommon project applications: roofing, HVAC, steel stud framing, gutters and register vents