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TMA

SELF-TAPPING SCREWS FOR METALS

TMA is a fastening solution for light alloys. It’s many, special characteristics give designers the confidence that these self-tapping screws are truly suited to the material for which they are intended. The contoured thread root ensures low installation torque, and the special shape of the threading itself results in high resistance to pull-out forces.

Technical data

SPECIAL CONTOURED ROOT

Reduced effort. These screws facilitate material flow when tapping the hole. Reduced installation torque. Increased pull-out torque. Increased twist-out force.

SPECIAL SHAPE OF THREAD TOOTH

Reduces radial force. Maximized support surface. High pull-out force. High clamping force. High twist-out force.

BENEFITS

  • Tapping without chips.
  • Simple, reliable installation in punched, drilled, extruded and cast holes.
  • Screw reuse.

DESIGN GUIDE

  • Ductile materials ≤ 50 HV.
  • Semi-hard materials = from 51 to 75 HV.
  • Hard materials = from 76 to 100 HV.

EXTRUDED HOLE

PUNCHED HOLE

TMA

SELF-TAPPING SCREWS FOR METALS

Download the technical specifications

Here you can get a PDF with the product’s full technical specifications.

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