ASSY A2 Ecofast

Countersunk Head, Stainless Steel Self-Tapping Wood Screw
  • Code Approval
  • ICC, ETA
  • Connection Type
  • Wood/Wood, Wood/Concrete
  • Applications
  • Timber Framing, Log Home Building, Mass & Heavy Timber Construction
  • Manufacturer
  • SWG

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Countersunk Head

Ring Thread Tip

Suitable in Wet Service Conditions

Outdoor

Product Description

Product Description

The A2 Stainless Steel Ecofast are high corrosion resistant structural fasteners suitable for use in wet service conditions & corrosive environments. These ICC-ESR approved fasteners are designed to reduce wood splitting during installation. They offer a precise setting without the need for pre-drilling [may be recommended for long models].

Made from chromium-nickel austenitic stainless steel (corrosion resistant) with low carbon content and copper addition. Considered to be equivalent to 304 stainless steel.

Features

Diameters1/4″ (6 mm) , 5/16″ (8 mm)
Lengths2-1/4” (60 mm)  to  11-7/8” (300 mm)
  • Countersunk head for a clean architectural finish
  • 304 stainless steel equivalents
  • Suitable in corrosive environment
  • Suitable for use in wet service conditions
  • Aggressive ring thread tip providing the fastest fastener wood bite & installation
  • Installed with AW Bits

 

Specifications

Specifications


SpecificationASSY A2 EcofastThread LengthDrive BitPackaging Qty.
# ItemMaterialHead Typein.mmin.mm
A2ECO0660Stainless SteelCountersunk Head1/4" x 2 3/8"6 x 601 1/2"37AW 30200
A2ECO0680Stainless SteelCountersunk Head1/4" x 3 1/8"6 x 802"50AW 30100
A2ECO06100Stainless SteelCountersunk Head1/4" x 4"6 x 1002 3/8"60AW 30100
A2ECO06120Stainless SteelCountersunk Head1/4" x 4 3/4"6 x 1202 3/4"70AW 30100
A2ECO06140Stainless SteelCountersunk Head1/4" x 5 1/2"6 x 1402 3/4"70AW 30100
A2ECO0880Stainless SteelCountersunk Head5/16" x 3 1/8"8 x 802"50AW 4075
A2ECO08100Stainless SteelCountersunk Head5/16" x 4"8 x 1002 3/8"60AW 4075
A2ECO08120Stainless SteelCountersunk Head5/16" x 4 3/4"8 x 1203 1/8"80AW 4075
A2ECO08140Stainless SteelCountersunk Head5/16" x 5 1/2"8 x 1403 1/8"80AW 4075
A2ECO08160Stainless SteelCountersunk Head5/16" x 6 1/4"8 x 1603 1/8"80AW 4075
A2ECO08180Stainless SteelCountersunk Head5/16" x 7 1/8"8 x 1803 1/8"80AW 4075
A2ECO08200Stainless SteelCountersunk Head5/16" x 7 7/8"8 x 2003 1/8"80AW 4075
A2ECO08220Stainless SteelCountersunk Head5/16" x 8 5/8"8 x 2204"100AW 4075
A2ECO08240Stainless SteelCountersunk Head5/16" x 9 1/2"8 x 2404"100AW 4075
A2ECO08260Stainless SteelCountersunk Head5/16" x 10 1/4"8 x 2604"100AW 4075
A2ECO08280Stainless SteelCountersunk Head5/16" x 11"8 x 2804"100AW 4075
A2ECO08300Stainless SteelCountersunk Head5/16" x 11 7/8"8 x 3004"100AW 4075

CAD Drawings

CAD Drawings

ProductASSY A2 Ecofast DiameterFile Extension
in.mm..DXF
ASSY A2 Ecofast1/4"6
ASSY A2 Ecofast5/16"8
ALL ABOVE
Design Guides

Design Guides

Structural Screw Catalog

A catalog with all information on our ICC & CCMC code-approved fasteners, including dimensions, references & design properties.

Structural Screw Connection Design Guide

Companion to the Structural Screws Catalog, it provides easy-to-read tables for the most common mass timber connections with design values & installation instructions.

Code Approvals

Code Approvals

ICC Code Approval ESR-3179 for Partially Threaded Fasteners - 2022 Edition (October)

ISO 50001 Certification for ASSY Fasteners

LA Research Report (LARR): RR 26073

Installation Instructions

Installation Instructions

Structural Fasteners Installation Guide

The structural fasteners installation guide is a practical document designed to simplify the installation process of ASSY self-tapping screws.

White Papers

White Papers

Timber Moisture Content Changes and Associated Stress Predictions on Structural Wood Screws

Substitution of Lag Screws with Wood Screws

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