SWD

Structural Double Threaded Wood Screw

SWD is a construction screw designed to connect two timber members together. The small cap-style head and double thread creates a flexible, hidden assembly with high strength. The differentiated thread pitch creates a clamping effect, reducing the risk of gaps between the timber members.

CE Marking
ETA
Service class 2
Protec® +
Outdoor

Product Details

Images

Features

Material

Steel - Protec®+ coating

Features

  • CE marked to EN14592
  • Cap-style head
  • Double threaded
  • Chisel point

Application

Common Applications

Timber to timber connections

Technical Data

Dimensions

Product dimensions

References Item code Fastener dimensions [mm]
d l dh d1 Ah ht lg1 lg2 tfix bit
SWD6.5x65754256.56584--2821.5-TX30
SWD6.5x90754266.59084--4033.5-TX30
SWD6.5x130754276.513084--4033.5-TX30
SWD6.5x160754286.516084--6558.5-TX30
SWD6.5x190754296.519084--8073.5-TX30
SWD6.5x220754306.5220104--9588.5-TX30
SWD8.0x90754317.890105.4--4031.5-TX40
SWD8.0x130754327.8130105.4--4031.5-TX40
SWD8.0x160754337.8160105.4--6556.5-TX40
SWD8.0x190754347.8190105.4--8071.5-TX40
SWD8.0x220754357.8220105.4--9586.5-TX40
SWD8.0x245754367.8245105.4--107.599-TX40
SWD8.0x275754377.8275105.4--107.599-TX40
SWD8.0x300754387.8300105.4--135126.5-TX40
SWD8.0x330754397.8330105.4--135126.5-TX40

Product characteristic properties

References Characteristic Yield Moment – My,k [Nm] Characteristic withdrawal parameter - fax,k,90° [N/mm²] Characteristic head pull-through parameter - fhead,k [N/mm²] Characteristic tensile capacity - ftens,k [kN] Characteristic torsional strength - ftor,k [Nm] Torsonial ratio
SWD6.5x6512.413.7-14.512.6≥ 1,5
SWD6.5x9012.413.7-14.512.6≥ 1,5
SWD6.5x13012.413.7-14.512.6≥ 1,5
SWD6.5x16012.413.7-14.512.6≥ 1,5
SWD6.5x19012.413.7-14.512.6≥ 1,5
SWD6.5x22012.413.7-14.512.6≥ 1,5
SWD8.0x9026.813.1-25.327.7≥ 1,5
SWD8.0x13026.813.1-25.327.7≥ 1,5
SWD8.0x16026.813.1-25.327.7≥ 1,5
SWD8.0x19026.813.1-25.327.7≥ 1,5
SWD8.0x22026.813.1-25.327.7≥ 1,5
SWD8.0x24526.813.1-25.327.7≥ 1,5
SWD8.0x27526.813.1-25.327.7≥ 1,5
SWD8.0x30026.813.1-25.327.7≥ 1,5
SWD8.0x33026.813.1-25.327.7≥ 1,5
SWD6.512.413.7-14.512.6-
SWD826.813.1-25.327.7-

Certification

Declaration of Performance (DoP)

European Technical Assessment (ETA)

Contact

Simpson Strong-Tie Poland

Simpson Strong-Tie Sp. z o.o.

ul. Karczunkowska 42
02-871 Warszawa
Poland