TIMCO METAL TAPPING SCREWS 3.9 x 38MM PZ COUNTERSUNK SELF-TAPPING STAINLESS STEEL 200 PCS (3938CCASS)

TIMCO METAL TAPPING SCREWS 3.9 x 38MM PZ COUNTERSUNK SELF-TAPPING STAINLESS STEEL 200 PCS (3938CCASS) Used for stitching metal or attaching to metal. A pre-drilled hole is required. Manufactured from A2 Stainless Steel for use where ultimate corrosion resistance. Stainless steel must be used where there is corrosive environment and/or the base material has inherent corrosive characteristics. • Countersunk head gives a discreet finish into pre-countersunk holes • Stainless Steel suitable for outdoor applications • 60° self-tapping thread for ease of insertion