Spax Flat-Head Zinc Plated Screws - Unidrive - Square Drive

Spax Flat-Head Zinc Plated Screws - Unidrive - Square Drive

Square/phillips combination drive with unique serrated pilot threads to eliminate most pre-drilling!Deep, sharp threads, thin shanks and visibly-superior finishing complemented by an exclusive heat-bonded PTFE coating make these screws penetrate more easily than any others. Spax screws are extraordinarily strong, and their unique "toothed" pilot threads make them almost universally self-drilling. You can drive #10 x 3-1/2" screws into unpiloted hard maple--normally an exercise in wasted screws--with no breakage. Their head design is the most convenient available: they feature a combination recess that accepts either phillips or square drive bits.

Drive Bits

Spax Unidrive Screws can be driven with either Philips or Square drive.

• #6 screws use #1 square drive or Philips bits
• #8 and #10 screws use #2 square drive or Philips bits
• #12 and #14 use #3 square drive or Philips bits

Note: Each 1lb box of screws comes with one(1) Spax combo Phillips/Square drive bit.