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 Fastener dimensions [mm] Box Quantity
d l dh lg Driver Bit
TTFA44.2X45T-20743864.245723T-20250
TTFA44.2X55T-207438755727.5T-20250
TTFA44.2X55T-20 Bulk7438855727.5T-201400
TTFA44.8X75T-20743894.875735T-20100

Collated screws

Table "Collated screws" cannot be displayed : no references available.

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]
TTFA44.2X45T-2025751720.44.2
TTFA44.2X55T-2025751720.44.2
TTFA44.2X55T-20 Bulk25751720.44.2
TTFA44.8X75T-20437120.716.45.6

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