TTFA4

Decking Screw - Stainless Steel A4

The TTFA4 is marine grade A4 stainless steel. Suitable for outdoor use and use in severe weather conditions, the TTFA4 has a ribbed countersunk head to ensure a neat finish and type 17 point to prevent timber from splitting upon insertion. The TTFA4 will not cause any discoloration of timber around the screw and is suitable for many timbers including oak, cedar and larch. TTFA4 is CE marked to EN14592, has a 6 lobe drive with driver bits included in every box of screws.

Find it in the Solid Wood Application >

CE Marking
Service class 3
Stainless steel A4
Severe
Solid Wood

Product Details

Images

Features

Material

Stainless steel - A4

Features

  • CE marked to EN14592
  • 6 lobe drive
  • Ribbed flat countersunk head
  • Coarse thread
  • Type 17 point
  • Marine grade stainless steel (A4)

Application

Common Applications

  • Timber to timber
  • Extreme environments
  • Decking to timber
  • Precious woods including oak, cedar and larch

Technical Data

Dimensions

Product Dimensions

References Item Code Tun / DB nr. NOB nr. Fastener dimensions [mm]
d l dh d1 lg tfix Driver Bit
TTFA44.2X35T-20743851949880532937434.23572.62014T-20
TTFA44.2X45T-20743861949881532937584572.62322T-20
TTFA44.2X55T-20743871949882532953665572.627.527.5T-20
TTFA44.2X55T-20 Bulk74388-532953745572.627.527.5T-20
TTFA44.8X75T-20743891949884532937624.87573.23540T-20

Collated screws

References Item Code Tun / DB nr. NOB nr. Fastener dimensions [mm] Box Quantity
d l dh d1 lg tfix Driver Bit
TTFA44.2X45PH2742911949809532936224.24572.62322PH21000
TTFA44.2X55PH2742921949810532936374.25572.627.527.5PH21000
TTFA44.8X75PH2742931949811532936414.87573.23540PH2400

Characteristic Capacities

References Product characteristic properties
Characteristic Yield Moment – My,k [My.k] [Nmm] Characteristic withdrawal parameter - fax,k,90° [fax.k.90°] [N/mm²] Characteristic head pull-through parameter - fhead,k [fhead.k] [N/mm²] Characteristic tensile capacity - ftens,k [ftens.k] [kN]
TTFA44.2X35T-2025751720.44.2
TTFA44.2X45T-2025751720.44.2
TTFA44.2X55T-2025751720.44.2
TTFA44.2X55T-20 Bulk25751720.44.2
TTFA44.8X75T-20437120.716.45.6
TTFA44.2X45PH225751720.44.2
TTFA44.2X55PH225751720.44.2
TTFA44.8X75PH2437120.716.45.6

Certification

Declaration of Performance (DoP)

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Contact

Simpson Strong-Tie Poland

Simpson Strong-Tie Sp. z o.o.

ul. Karczunkowska 42
02-871 Warszawa
Poland