MTH

Underlayment to Wood or Steel Screw

The MTH underlayment screw is designed for fast and secure underlayment to subfloor installations. Unlike nails, the MTH underlayment screw has an intricate high-low thread pattern designed to prevent squeaking by holding plywood tight to the subfloor and thus preventing withdrawal. Its countersunk compact trim-head allows for a flush surface finish and prevents floor coverings from settling in countersink recesses. CE marked to EN14592.

MTH is a ribbed head screw with sharp point suitable for plywood, chipboard and OSB to wood installations, such as flooring.

CE Marking
Service class 1
Phosphated
Yellow electro-galvanised steel
Indoor

Product Details

Features

Material

  • Steel - grey phosphate coating
  • Steel - yellow zinc coating

Benefits

  • 25mm and 32mm lengths CE marked to EN14592
  • Deep recessed square drive holds bits tight, reducing cam-outs
  • High-low thread for easy driving and holding underlayment tight
  • Specially-designed sharp point for fast starts
  • Trim-head with nibs for easy countersinking
  • Plywood or OSB to wood applications
  • Recommended for installing Fermacell board to steel up to 0.9mm thickness
  • Bit (BIT2SE) included in every box for 25mm and 32mm screws
  • Bit (BITL2SE) included in every box for 19mm screws

 

New

New MTHZ19E 19mm collated flooring screw. 

Using fasteners longer than necessary can lead to screws protruding through the underside of floorboards. This has the potential to cause all sorts of problems including damaging water pipes, cables and underfloor heating. The 19mm flooring screw is a safer way to fix 6mm plywood whilst providing superior holding power that only a screw can provide, and eliminating floor squeaks, floor lift and withdrawal that can occur when using nails. With 50 screws per strip there is less time reloading and significantly reducing installation times. The collation design means that there are no missed screws and no waste.

This screw has a different collation to the other MTH screws and so requires a different Quik Drive attachment - QDBPC19EF

Application

Support

  • Can be used to fix to timber
  • Can be used to fix to steel up to 0.9mm thick

Common Applications

  • Underlayment flooring
  • Timber to timber
  • Fixing to steel up to 0.9mm thick
  • fiber board to timber

Technical Data

Dimensions

Product Dimensions UK

References Fastener dimensions [mm] Qty per Strip Qty per Box Recommended RPM Quik Drive Attachment
dh d l
MTHZ19E6.93.8195015002500QDBPC19EF
MTHZ25E3.8253025002500QDPRO51E / QD76KE
MTH32E3.8323025002500QDPRO51E / QD76KE
  • MTH = grey phosphate coating
  • MTHZ = yellow zinc plated coating

Certification

Declaration of Performance (DoP)

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Contact

Simpson Strong-Tie U.K.

Simpson Strong-Tie

Cardinal Point, Winchester Road
Tamworth
Staffordshire
B78 3HG
United Kingdom