ASSY Ecofast 4.0

Countersunk Head Partially Threaded Structural Wood Screws, 4.0
  • Code Approval
  • ICC , ETA
  • Connection Type
  • Wood/Wood , Wood/Steel
  • Applications
  • Timber Framing , Log Home Building , Mass & Heavy Timber Construction
  • Manufacturer
  • SWG

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Countersunk Head

Partially Threaded

Shank Cutter

Reamer Tip

Product Description

Product Description

The ASSY Ecofast 4.0 are partially threaded high performances structural fasteners. They are ICC-ESR [3179] approved fasteners, designed to pull tightly together connection elements and are often utilized when head pull-through or lateral loading are critical design considerations.

Their design offers a precise setting without the need for pre-drilling [may be recommended for long models]. Their blue passivated zinc coating makes them adequate for use in low corrosive environment, such as dry service condition. They participate in LEED BD+C 2.0 certification [MRc 4.1 & 4.2, 2 points possible] thanks to the percentage of post-consumer recycled steel used to manufacture them.

 

Features

Diameters1/4″ (6 mm), 5/16″ (8 mm), 3/8″ (10 mm)
Lengths2-3/8″ (60 mm)  to  15-3/4” (400 mm)
  • Partially threaded structural fasteners 4.0
  • Installed with RW Bits
  • Countersunk head for a clean architectural finish
  • Ideal for wood-to-wood & steel-to-wood connections
  • Blue passivated zinc coating
  • Reamer tip providing the fastest fastener wood bite & installation
  • Equipped with a shank cutter reducing the installation torque needed
  • LEED certification letter available upon request

 

Specifications

Specifications

SpecificationASSY EcofastThread LengthDrive BitPackaging Qty.
# ItemMaterialHead Typein.mmin.mm
[4] ECO0660Hardened SteelCountersunk Head1/4" x 2 3/8"6 x 601 1/2"37RW 30200
[4] ECO0670Hardened SteelCountersunk Head1/4" x 2 3/4"6 x 701 5/8"42RW 30200
[4] ECO0680Hardened SteelCountersunk Head1/4" x 3 1/8"6 x 802"50RW 30100
[4] ECO0690Hardened SteelCountersunk Head1/4" x 3 1/2"6 x 902"50RW 30100
[4] ECO06100Hardened SteelCountersunk Head1/4" x 4"6 x 1002 3/8"60RW 30100
[4] ECO06120Hardened SteelCountersunk Head1/4" x 4 3/4"6 x 1202 3/4"70RW 30100
[4] ECO06140Hardened SteelCountersunk Head1/4" x 5 1/2"6 x 1402 3/4"70RW 30100
[4] ECO06160Hardened SteelCountersunk Head1/4" x 6 1/4"6 x 1602 3/4"70RW 30100
[4] ECO06180Hardened SteelCountersunk Head1/4" x 7 1/8"6 x 1802 3/4"70RW 30100
[4] ECO06200Hardened SteelCountersunk Head1/4" x 7 7/8"6 x 2002 3/4"70RW 30100
[4] ECO06220Hardened SteelCountersunk Head1/4" x 8 5/8"6 x 2202 3/4"70RW 30100
[4] ECO06240Hardened SteelCountersunk Head1/4" x 9 1/2"6 x 2402 3/4"70RW 30100
[4] ECO06260Hardened SteelCountersunk Head1/4" x 10 1/4"6 x 2602 3/4"70RW 30100
[4] ECO06280Hardened SteelCountersunk Head1/4" x 11"6 x 2802 3/4"70RW 30100
[4] ECO06300Hardened SteelCountersunk Head1/4" x 11 7/8"6 x 3002 3/4"70RW 30100
[4] ECO0880Hardened SteelCountersunk Head5/16" x 3 1/8"8 x 802"50RW 4075
[4] ECO0890Hardened SteelCountersunk Head5/16" x 3 1/2"8 x 902 3/8"60RW 4075
[4] ECO08100Hardened SteelCountersunk Head5/16" x 4"8 x 1002 3/8"60RW 4075
[4] ECO08120Hardened SteelCountersunk Head5/16" x 4 3/4"8 x 1203 1/8"80RW 4075
[4] ECO08140Hardened SteelCountersunk Head5/16" x 5 1/2"8 x 1403 1/8"80RW 4075
[4] ECO08160Hardened SteelCountersunk Head5/16" x 6 1/4"8 x 1603 1/8"80RW 4075
[4] ECO08180Hardened SteelCountersunk Head5/16" x 7 1/8"8 x 1803 1/8"80RW 4075
[4] ECO08200Hardened SteelCountersunk Head5/16" x 7 7/8"8 x 2003 1/8"80RW 4075
[4] ECO08220Hardened SteelCountersunk Head5/16" x 8 5/8"8 x 2204"100RW 4075
[4] ECO08240Hardened SteelCountersunk Head5/16" x 9 1/2"8 x 2404"100RW 4075
[4] ECO08260Hardened SteelCountersunk Head5/16" x 10 1/4"8 x 2604"100RW 4075
[4] ECO08280Hardened SteelCountersunk Head5/16" x 11"8 x 2804"100RW 4075
[4] ECO08300Hardened SteelCountersunk Head5/16" x 11 7/8"8 x 3004"100RW 4075
[4] ECO08320Hardened SteelCountersunk Head5/16" x 12 5/8"8 x 3204"100RW 40100
[4] ECO08340Hardened SteelCountersunk Head5/16" x 13 3/8"8 x 3404"100RW 40100
[4] ECO08360Hardened SteelCountersunk Head5/16" x 14 1/4"8 x 3604"100RW 40100
[4] ECO08380Hardened SteelCountersunk Head5/16" x 15"8 x 3804"100RW 40100
[4] ECO08400Hardened SteelCountersunk Head5/16" x 15 3/4"8 x 4004"100RW 40100
[4] ECO1080Hardened SteelCountersunk Head3/8" x 3 1/8"10 x 802"50RW 5050
[4] ECO10100Hardened SteelCountersunk Head3/8" x 4"10 x 1002 3/8"60RW 5050
[4] ECO10120Hardened SteelCountersunk Head3/8" x 4 3/4"10 x 1203 1/8"80RW 5050
[4] ECO10140Hardened SteelCountersunk Head3/8" x 5 1/2"10 x 1403 1/8"80RW 5050
[4] ECO10160Hardened SteelCountersunk Head3/8" x 6 1/4"10 x 1604"100RW 5050
[4] ECO10180Hardened SteelCountersunk Head3/8" x 7 1/8"10 x 1804"100RW 5050
[4] ECO10200Hardened SteelCountersunk Head3/8" x 7 7/8"10 x 2004"100RW 5050
[4] ECO10220Hardened SteelCountersunk Head3/8" x 8 5/8"10 x 2204"100RW 5050
[4] ECO10240Hardened SteelCountersunk Head3/8" x 9 1/2"10 x 2404"100RW 5050
[4] ECO10260Hardened SteelCountersunk Head3/8" x 10 1/4"10 x 2604"100RW 5050
[4] ECO10280Hardened SteelCountersunk Head3/8" x 11"10 x 2804"100RW 5050
[4] ECO10300Hardened SteelCountersunk Head3/8" x 11 7/8"10 x 3004"100RW 5050
[4] ECO10320Hardened SteelCountersunk Head3/8" x 12 5/8"10 x 3204 3/4"120RW 5050
[4] ECO10340Hardened SteelCountersunk Head3/8" x 13 3/8"10 x 3404 3/4"120RW 5050
[4] ECO10360Hardened SteelCountersunk Head3/8" x 14 1/4"10 x 3604 3/4"120RW 5050
[4] ECO10380Hardened SteelCountersunk Head3/8" x 15"10 x 3804 3/4"120RW 5050
[4] ECO10400Hardened SteelCountersunk Head3/8" x 15 3/4"10 x 4004 3/4"120RW 5050
Design Guides

Design Guides

Structural Screw Catalog

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

Code Approvals

Code Approvals

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

ISO 50001 Certification for ASSY Fasteners

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