Can ASSY Carbon Steel Fasteners Be Used in Wet Service Conditions?

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While ASSY A2 Stainless Steel screws are suitable for wet service conditions, the use of CLT in wet service conditions, however, is generally restr...

How Do ASSY FWH (Flat Washer Head) Screws Compare to ASSY SK Screws?

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ASSY FWH screws combine the pulling power of a washer-head screw (like the SK) with a clean finish of a countersunk head screw (like the ECOFAST). ...

Are ASSY Carbon Steel Screws Available in a Hot-Dip Galvanized Option?

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ASSY carbon steel screws are galvanized with a 5-8μm thick coating of either blue passivated zinc or yellow chromate, and are suitable for use in d...

How Is the Wood Cover for Fire Protection Calculated for Concealed Beam Hangers?

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Part 3 of Technical Report No.10 (TR 10), “Calculating the Fire Resistance of Exposed Wood Members” by the AWC contains design procedures relevant ...

Can Regular Carbon Steel Screws Be Used in a Sheltered, Outdoor Applications?

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Regular ASSY® carbon steel screws are intended for use in dry service conditions only, while corrosion-free ASSY® A2 stainless steel screws are sui...

Can Ricon® Beam Hangers Be Used to Connect Joists to Headers at Skewed Angles?

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RICON beam hangers are usually used to connect joists to girders at 90° horizontal angles. Generally, a RICON plate attaches to a joist with the sc...

What Is the Cost Comparison Between ASSY A2 Stainless Steel Screws and Regular ASSY Carbon Steel Screws?

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Corrosion-free stainless steel screws are roughly 1.5 to 3 times the price of their regular carbon steel counterparts.

Which Diameter Fastener Should I Use for My Lateral Connection Design?

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Single shear connection design procedures in both the NDS and CSA O86 are based on the "European Yield Model" which assigns the least of six possib...

Can ASSY® Screws Be Considered “Wood Screws” for the Purpose of Lateral Connection Design? (Canadian)

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Evaluation report CCMC 13677-R for ASSY® screws specifies that lateral resistance of ASSY® screws in timber is to be calculated using CSA O86 Claus...

Can European Design Values Be Used in North America?

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EC5, the NDS, and CSA O86 are based on different design approaches which means that characteristic/reference/basic design values cannot be applied ...

How Much Do ASSY® Screws Cost Compared to Lag Screws?

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Cost comparison between different fastening technologies must consider the entire picture to have any relevance. A fastener-to-fastener cost compar...

Can Screw Heads Be Left Exposed in Fire Rated Connections?

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Exposed screws create a thermal bridge to the inner core of wood members and leave screws vulnerable to damage.

How Can I Reduce Connection Geometry Requirements For ASSY® Self Tapping Screws?

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Self-tapping screws require larger relative geometry requirements than bolts or lag screws, but these can be reduced.

Is Pre-Drilling Required For Inclined Screw Applications?

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When fully threaded screws are inclined to the wood surface, additional measures may be required in order for the screw tips to bite into the wood ...

Do Group Effects Apply to Fasteners Loaded in Withdrawal?

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NDS 2015 and CSA O86 do not include group action factors for fasteners loaded in withdrawal. European timber design models, however, account for gr...