Fastener selection guides

A catalogue gives dimensions. It will not tell you whether full thread or partial thread is right for your connection, whether A2 is enough, or what length to take for twenty centimetres of above-rafter insulation. These texts answer the questions that actually come up at ordering time.

Each one grew out of the questions we get most often. Missing yours? Write or call us - the answer will end up on this list.

Facades Fixing and levelling facade battens through insulation - EiSYS-2 How to choose the EiSYS-2 screw length, what the plug and tool are for, and when the system is the wrong choice. Decking Larch decking - what to fix it with Tannins, hardness and movement: why zinc is out, when hardened stainless is not enough, and why you pre-drill. Timber structures Full thread or partial thread - which and when Full thread transfers force in both members, partial thread clamps them together. Which one when, and the mistake that costs most. FacadesDeckingSteel and corrosion A2 or A4 - which stainless steel A2 for ordinary outdoor conditions, A4 where chlorides are present. And one place where neither will do. DeckingSteel and corrosion Oak, larch, thermowood - why zinc leaves black stains Tannins from oak and larch react with zinc and leave black streaks. Why it happens and what to do about it. Timber structures Screws for beech laminated veneer lumber Beech LVL is so dense that an ordinary construction screw snaps in it. What sets a screw made for beech apart. Roof and insulation Choosing screw length for above-rafter insulation Length is the sum of counter batten, insulation, boarding and embedment - measured along the screw axis, not perpendicular. Timber structuresStandards and documents ETA-11/0024 - when you need the approval A European Technical Assessment gives the engineer the numbers a catalogue lacks. When it is essential and when it is a needless… Decking Choosing an adjustable pedestal - height, fall, load Construction height, fall and load - the three numbers that decide the series, size and adapter of a deck pedestal. Facades Timber cladding substructure - a ventilated facade step by step Layers, batten direction, counter-battens, the ventilation gap and fixings - how to build the substructure for a ventilated timber facade.

Products from our guides

Hapatec black - screw for cladding and decking boards 159,11 zł - 496,38 zł incl. VAT KonstruX Full Thread - Cylinder Head 102,43 zł - 789,03 zł incl. VAT Hapatec stainless - decking screw for hardwood, hardened stainless steel 144,62 zł - 363,69 zł incl. VAT Topduo Cylinder Head - Above-Rafter Insulation 147,00 zł - 974,92 zł incl. VAT Hobotec ornamental head, hardened stainless steel, black 355,16 zł - 615,14 zł incl. VAT Drill Tool 50X - jig for invisible decking fixing 74,10 zł - 204,46 zł incl. VAT EiSYS-2 façade/adjusting screw 373,92 zł - 2 009,21 zł incl. VAT BASE L 22,73 zł incl. VAT BASE M 18,47 zł incl. VAT BASE S 14,92 zł incl. VAT BASE XL 29,84 zł incl. VAT GIANT adjusting wrench 164,68 zł incl. VAT