ASSY SK 3.0

Hexagonal Head Partially Threaded Structural Wood Screws, 3.0
  • Code Approval
  • ICC, CCMC, ETA
  • Connection Type
  • Wood/Wood , Wood/Steel
  • Applications
  • Timber Framing, Log Home Building, Mass & Heavy Timber Construction
  • Manufacturer
  • SWG

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Washer Head

Shank Cutter

Partially Threaded

Counter Thread Tip

Product Description

Product Description

The ASSY SK 3.0 are partially threaded high performances structural fasteners. They are ICC-ESR [3179] & CCMC approved fasteners, designed to pull tightly together connection elements and are recommended when head pull-through is the governing consideration.

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 environments, 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

Diameters 1/4″ (6 mm) , 5/16″ (8 mm) , 3/8″ (10 mm) , 1/2″ (12 mm)
Lengths 1-3/4″ (50 mm)   to  20-1/2″ (520 mm)
  • Partially threaded structural fasteners 3.0
  • Installed with AW Bits
  • Large washer head
  • Provides tremendous head pull-through capacity
  • Ideal for wood-to-wood & steel-to-wood connections
  • Blue passivated zinc coating
  • Counter thread 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 SKThread LengthDrive BitPackaging Qty.
# ItemMaterialHead Typein.mmin.mm
[3] SK0650Hardened Steel Washer Head1/4 x 26 x 501 3/445RW 30100
[3] SK0660Hardened Steel Washer Head1/4 x 2 3/86 x 601 1/237RW 30100
[3] SK0670Hardened Steel Washer Head1/4 x 2 3/46 x 701 5/842RW 30100
[3] SK0680Hardened Steel Washer Head1/4 x 3 1/86 x 80250RW 30100
[3] SK0690Hardened Steel Washer Head1/4 x 3 1/26 x 90250RW 30100
[3] SK06100Hardened Steel Washer Head1/4 x 46 x 1002 3/860RW 30100
[3] SK06120Hardened Steel Washer Head1/4 x 4 3/46 x 1202 3/470RW 30100
[3] SK06140Hardened Steel Washer Head1/4 x 5 1/26 x 1402 3/470RW 30100
[3] SK06160Hardened Steel Washer Head1/4 x 6 1/46 x 1602 3/470RW 30100
[3] SK06180Hardened Steel Washer Head1/4 x 7 1/86 x 1802 3/470RW 30100
[3] SK06200Hardened Steel Washer Head1/4 x 7 7/86 x 2002 3/470RW 30100
[3] SK06220Hardened Steel Washer Head1/4 x 8 5/86 x 2202 3/470RW 30100
[3] SK06240Hardened Steel Washer Head1/4 x 9 1/26 x 2402 3/470RW 30100
[3] SK06260Hardened Steel Washer Head1/4 x 10 1/46 x 2602 3/470RW 30100
[3] SK06280Hardened Steel Washer Head1/4 x 116 x 2802 3/470RW 30100
[3] SK06300Hardened Steel Washer Head1/4 x 11 7/86 x 3002 3/470RW 30100
[3] SK0860Hardened Steel Washer Head5/16 x 2 3/88 x 60250RW 4050
[3] SK0880Hardened Steel Washer Head5/16 x 3 1/88 x 80250RW 4050
[3] SK08100Hardened Steel Washer Head5/16 x 48 x 1002 3/860RW 4050
[3] SK08120Hardened Steel Washer Head5/16 x 4 3/48 x 1203 1/880RW 4050
[3] SK08140Hardened Steel Washer Head5/16 x 5 1/28 x 1403 1/880RW 4050
[3] SK08160Hardened Steel Washer Head5/16 x 6 1/48 x 1603 1/880RW 4050
[3] SK08180Hardened Steel Washer Head5/16 x 7 1/88 x 1803 1/880RW 4050
[3] SK08200Hardened Steel Washer Head5/16 x 7 7/88 x 2003 1/880RW 4050
[3] SK08220Hardened Steel Washer Head5/16 x 8 5/88 x 2204100RW 4050
[3] SK08240Hardened Steel Washer Head5/16 x 9 1/28 x 2404100RW 4050
[3] SK08260Hardened Steel Washer Head5/16 x 10 1/48 x 2604100RW 4050
[3] SK08280Hardened Steel Washer Head5/16 x 118 x 2804100RW 4050
[3] SK08300Hardened Steel Washer Head5/16 x 11 7/88 x 3004100RW 4050
[3] SK08320Hardened Steel Washer Head5/16 x 12 5/88 x 3204100RW 4050
[3] SK08340Hardened Steel Washer Head5/16 x 13 3/88 x 3404100RW 4050
[3] SK08360Hardened Steel Washer Head5/16 x 14 1/48 x 3604100RW 4050
[3] SK08380Hardened Steel Washer Head5/16 x 158 x 3804100RW 4050
[3] SK08400Hardened Steel Washer Head5/16 x 15 3/48 x 4004100RW 4050
[3] SK08420Hardened Steel Washer Head5/16 x 16 1/28 x 4204100RW 4050
[3] SK08440Hardened Steel Washer Head5/16 x 17 1/48 x 4404100RW 4050
[3] SK08480Hardened Steel Washer Head5/16 x 198 x 4804100RW 4025
[3] SK08520Hardened Steel Washer Head5/16 x 20 1/28 x 5204100RW 4025
[3] SK10100Hardened Steel Washer Head3/8 x 410 x 1002 3/860RW 5050
[3] SK10120Hardened Steel Washer Head3/8 x 4 3/410 x 1203 1/880RW 5050
[3] SK10140Hardened Steel Washer Head3/8 x 5 1/210 x 1403 1/880RW 5050
[3] SK10160Hardened Steel Washer Head3/8 x 6 1/410 x 1604100RW 5050
[3] SK10180Hardened Steel Washer Head3/8 x 7 1/810 x 1804100RW 5050
[3] SK10200Hardened Steel Washer Head3/8 x 7 7/810 x 2004100RW 5050
[3] SK10220Hardened Steel Washer Head3/8 x 8 5/810 x 2204100RW 5050
[3] SK10240Hardened Steel Washer Head3/8 x 9 1/210 x 2404100RW 5050
[3] SK10260Hardened Steel Washer Head3/8 x 10 1/410 x 2604100RW 5050
[3] SK10280Hardened Steel Washer Head3/8 x 1110 x 2804100RW 5050
[3] SK10300Hardened Steel Washer Head3/8 x 11 7/810 x 3004100RW 5050
[3] SK10320Hardened Steel Washer Head3/8 x 12 5/810 x 3204 3/4120RW 5050
[3] SK10340Hardened Steel Washer Head3/8 x 13 3/810 x 3404 3/4120RW 5050
[3] SK10360Hardened Steel Washer Head3/8 x 14 1/410 x 3604 3/4120RW 5050
[3] SK10380Hardened Steel Washer Head3/8 x 1510 x 3804 3/4120RW 5050
[3] SK10400Hardened Steel Washer Head3/8 x 15 3/410 x 4004 3/4120RW 5050
[3] SK10460Hardened Steel Washer Head3/8 x 18 1/810 x 4604 3/4120RW 5025
[3] SK12200Hardened Steel Washer Head1/2 x 7 7/812 x 2004100RW 5025
[3] SK12240Hardened Steel Washer Head1/2 x 9 1/212 x 2404 3/4120RW 5025
[3] SK12260Hardened Steel Washer Head1/2 x 10 1/412 x 2604 3/4120RW 5025
[3] SK12300Hardened Steel Washer Head1/2 x 11 7/812 x 3004 3/4120RW 5025
[3] SK12400Hardened Steel Washer Head1/2 x 15 3/412 x 4005 3/4145RW 5025
[3] SK12480Hardened Steel Washer Head1/2 x 1912 x 4805 3/4145RW 5025
[3] SK12520Hardened Steel Washer Head1/2 x 20 1/212 x 5205 3/4145RW 5025

CAD Drawings

2D & 3D Geometry

ProductASSY SK Diameter File Extension
in.mm..DXF
ASSY SK 1/4"6
ASSY SK 5/16"8
ASSY SK 3/8"10
ASSY SK 1/2"12
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)

CCMC Code Approval 13677-R

ISO 50001 Certification for ASSY Fasteners

LA Research Report (LARR): RR 26073

White Papers

White Papers

Structural Insulated Panel (SIP) Installation Design

Structural Screw Technology in Tall Wood Buildings

ASSY Screws vs. Lag Bolt

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

Substitution of Lag Screws with Wood Screws

CLT Special Provisions

Designing Timber Concrete Composite Systems (TCC) with ASSY Self-Tapping Screws

Technical Blogs

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