Inspiring versatility and performance:the WT fastening system for cost-effective,durable joints in structural timberwork.

Reap potential benefits at several levels:contractors, project engineers and installers benefit equally

Efficiency that pays offThe WT system offers convincing advantages over con-ventional fastening elements such as nails, commercialwood screws or shaped sheet metal parts:■Time and cost reductionsStructural timber components are connected with the WTspecial fastener in a single operation, without any pilot drilling. This enables significant time and cost reductions to be achieved.■ Inventory savingsA wide range of potential uses means that different traditional fastening methods can be replaced. Besides simplifying materials management, this also results in inventory savings.■ Easy, reliable calculationAn extensive selection of basic calculation aids catering forthe different applications in structural timberwork facilitateseasy, reliable calculation of the joints.

Capability that gives you security■ High load-bearing capacityThe WT system guarantees maximum security through opti-mum installation quality and the absorption of enormous forces. For example, permissible forces of up to 3,527 lbf.or characteristic forces of up to 8,157 lbf. can be absorbed bya main/secondary purlin joint.■ Durable jointThe double thread of the WT special fastener pulls the stru c-tural components tightly together so that any loss of initialstress is impossible. The cohesive forces are also optimallyc o o r d i n a t e d d u r i n g ch a n g e s i n m o i s tu r e c o n t e n t o f t h e t i m b e r,and exceptional anti-corrosion protection assures the joint ofa long service life .

Outstanding user-friendlinessEven the most ingenious fastening methods only achievethe desired effect if they are used properly and accura-tely – from the first installation point in the building project tothe last.■ Fast, secure installationWell-conceived setting tools are available with the WT sys-tem, designed for the wide variety of applications in structur-al timberwork. They facilitate the efficient, accurate installa-tion of the fasteners as well as fatigue-free working overlonger periods.■ Structural advantagesParticularly worth mentioning are the high fire resistance due to the concealed location of the fasteners and the elimination of heat bridges.■ Aesthetic aspectsThe special geometry of the fasteners enables them to becountersunk systematically in the timber.This can be of decisive importance, especially as regards aesthetic aspectswhen implementing prestigious projects.

Bridge Leonardo da Vinci, Norway; Photograph: Terje Johnasen

Implementing unusual solutionssimply and cost-effectivelyWell-conceived fastening solutions are called for to implement creative, efficient design methods efficientlyand cost-effectively in structural timberwork.With the new WT system bySFS intec, innovative architects andengineers can implement unusualdesign concepts inexpensively,without compromising on safety andaesthetic aspects. This efficient fastening system offers convincingadvantages both for implementing highly complex engineering structuresand also in structural timberwork.

Significantly enhanced productivityin prefabricated buildings, pitchedroof and siding structures, and general carpentry workFiligree batten joints or heavily loadedpurlin reinforcement: the WT system isa convincing solution for a wide varietyof applications.Where several fastening methods havehad to be used to date, one system can now be employed. The WT system leaves nothing to be desired, either inprefabricated buildings or in carpentrywork. Contractors and installers benefitequally from the elimination of opera-tions, user-friendly installation and easyintegration in existing workflows.

Innovative design concepts or simple timber joints:the WT fastening system is always a convincing solution.

< Palais de l'Equilibre, CH-Neuchâtel

Cover:ÖBF AG, office buildingArchitects: Herwig, Ronacher (Austria)

New exhibition halls, DE-Friedrichshafen >

The ideal solution for numerous applications in structural timberwork:the WT fastening system, simply convincing.

Coupling purlinsNo pilot drilling, easy installation, notightening-up: there's no faster, betteror more durable method of joining coupling purlins.

Notching and penetrationsThe WT system makes the compli-cated reinforcement of weakenedcross-sections easy.The joints retaintheir total operating capacity even dur-ing temperature fluctuations.

Joining main/secondary purlins,posts and railsWhether in the workshop or on the buil-ding site, the WT system enables jointswith high load-bearing capacity to beproduced easily, quickly and inv i s i b l y.

Joining rafters and purlinsSignificantly shorter assembly timewith exceptionally high load-bearingcapacity are the advantages when joining rafters and purlins.

Composite purlins and doubling-upDowelled purlins and ceilings can beproduced cost-effectively in renovationprojects or new buildings. The joint isinvisible and very rigid.

Prefabricated buildingsThe WT system facilitates joints in floors, roofs and walls. The fastenersfunction under tensile, compressiveand shearing forces and can be installed at different angles.Huge savings in working time, highperformance and system reliabilityare convincing advantages.

Other spheres of application– tie joints– compression bonding– lateral tensile and compressive

reinforcement and many other applications.

Main/secondary ZL WT/U u n i versal templatepurlins, dowelledpurlins, prefabricatedbuilding, etc.

Main/secondary ZL WT/MS setting toolpurlins

Main/secondary ZLWT/S purlin supportpurlins

WT-T-5/16 x L BO 900 power drill

WT-T-1/4 x L DI 600 screwgun

WT-T-5/16 x L WT-T40/D10 adapterWT-T-1/4 x L WT-T30 adapter

WT fastening system:the new benchmark for durable, attractivetimber/timber joints.

Fastener range:

WT-T-5/16 x LMaterial: carbon steelSurface finish: DurocoatThread: ≥ 5/16 in. (Sg) and ≥ 3/8 in. (Sclamp)

Planning aids:

More information:If you have any questions about fastening technology, just call us. We'll be pleased to advise you!

Installation aids:We offer appropriate accessories, fromsimple universal templates to specialtools for individual applications. Ourconsultants will be pleased to assistyou in making the right choice.

WT-T-5/16 x L fastener range

WT-T-1/4 x L fastener rangeWT-T-1/4 x LMaterial: carbon steelSurface finish: DurocoatThread: ≥ 1/4 in.

Type Material Diameter Length Sclamp SgT = carbon steel d1 (in.) (in.) (in.) (in.)

WT - T - 5/16 x 6-5/16 2-1/2 2-1/2WT - T - 5/16 x 7-1/2 3-1/8 3-1/8WT - T - 5/16 x 8-11/16 3-3/4 3-3/4WT - T - 5/16 x 9-21/32 4-3/16 4-3/16WT - T - 5/16 x 11-13/16 5-5/16 5-5/16

Type Material Diameter Length Sclamp SgT = carbon steel d1 (in.) (in.) (in.) (in.)

WT - T - 1/4 x 2-9/16 1-1/16 1-1/16WT - T - 1/4 x 3-9/16 1-1/2 1-1/2WT - T - 1/4 x 5-1/8 1-1/2 1-1/2WT - T - 1/4 x 6-5/16 2-1/2 2-1/2

Setting tools and accessories (extract)Application Tools/Accessories Fastener Tools/Accessories

Detailed planning documentation catering for a very wide range of applications ensures easy, reliablecalculation. For special applications our structural timberwork consul-tants will be pleased to assist you in selecting the most efficient andcost-effective fastening method.

Principles of calculation

Coupling purlins ZL WT setting tool WT-T-5/16 x L T40 bit, lenghts 2-3/4,6, 7-3/4, 13-3/4 and 20-1/2

WT-T-1/4 x L T30 bit, lenghts 2-3/4,7-3/4 and 13-3/4 mm

To make you more competitive.

A strong partner in mechanical fastening with an international presence.

Fastening technologyyou can rely onAs a manufacturer of fastening sys-tems SFS intec has set standards formany years based on its long experience of the market and intensiveresearch and development work.Numerous innovations which haveproved their qualities millions of timesall over the world are tangible evidenceof this fact. Manufacturing know-howaccumulated over many years in production plants in various Europeancountries and the USA makes SFS intec a highly qualified partner in the field of mechanical fastening technology.

Assured qualityThe high quality standards bySFS intec's products and services are guaranteed by a dynamic qualityassurance system and extensive test-ing in the company's own test labora-tories. It goes without saying that ourfasteners have been awarded the nec-essary approvals, test reports and cer-tificates issued by national and interna-tional testing institutions.

Technical advice and sales serviceIn the U.S.SFS intec, Inc.FasteningSystemsSpring St. & Van Reed Rd., P.O. Box 6326Wyomissing, PA 19610www.sfsintecusa.comTel 800-234-4533

610-376-5751Fax 610-376-8551

In CanadaSFS intec, Inc.FasteningSystems880 Cranberry CourtOakville, Ontario L6L 6J7www.sfsintec.bizTel 866-847-5400

905-847-5400Fax 905-847-5366