Adamjee Bugle Head Drywall Screips: High-Quality Steel With Zinc Or Galvanized Coating Coarse Thread For Easy Screwing Into Drywall Sharp Point For Easy Penetration Into Drywall Bugle Head: Allows For Countersinking Into Drywall For A Flush Finish. Coarse Thread: Enables Easy Screwing Into Drywall Without Splitting. Sharp Point: Facilitates Easy Penetration Into Drywall. Durable Coating: Resists Corrosion And Wear.