Construction Screws are recommended for interior construction projects. Flat head provides self-countersinking and reinforced neck provides an increase in driving torque with a square drive for non-slip cling fit. Revolutionary “Sawtooth” coarse threads deliver extra holding power, faster uniform drawdown, requires less driving torque, and reduces splitting. A 15% thread improvement and a cutting feature outperform traditional Type 17 thread cutting screws. Extra sharp point easily penetrate wood without pre-drilling. Yellow zinc dichromate plated provides corrosion resistance but is not recommended for ACQ lumber or exterior applications.