COUNTERSUNK WOOD SCREWS. TORX TX20 T20 PIN DRIVE. TO DRIVE THE SCREWS YOU CAN ONLY USE T20 TX20 PIN TYPE TORX SECURITY BITS. CROSS HEAD PZ2 SOLID SECURITY TAMPER PROOF 6 POINT STAR 6 POINTED STAR SIX POINT STAR SIX POINTED STAR BIT PRECISION COUNTER SUNK COUNTER SINK COUNTERSINK FLAT TOP CROSS HEAD.
