ASSY VG CSK

ASSY VG CSK

Countersunk Head Fully Threaded Self-Tapping Wood Screw

Certifications

ICC ESR-3178 , CCMC 13677-R , ETA-11/0190

Connection Type

Wood-to-Wood , Steel-to-Wood , Concrete-to-Wood

Corrosion Resistance

Regular

Hardness Compliance

≤ 390 HV per CSA O86:24

Product Description

The ASSY VG CSK (Countersunk Head) screw is a fully threaded timber connector suitable for timber reinforcement, wood-to-wood connections, and steel-to-wood connections. The ASSY VG CSK can be used with both the 90° and 45° wedge washer.

With code-approved reliability, the ASSY VG CSK screw has been awarded an ICC-ESR approval in the United States and the Canadian Construction Materials Centre Reports (CCMC) approval in Canada. ASSY screws may also contribute to LEED 5.0 certification with up to 6 points, thanks to their Environmental Product Declaration (EPD) (available upon request) and recycled content.

Features

Diameters	5/16″ (8 mm) , 3/8″ (10 mm) , 1/2″ (12 mm)
Lengths	3-1/8″ (80 mm) to 31-1/2” (800 mm)

Versatile countersunk head with milling pockets for a clean architectural finish
Aggressive drill tip mimics a drill bit and bites into the wood and assures quick and easy installation
Used with the RICON S VS and MEGANT beam hanger connectors.
Ideal for incline wood-to-wood connections and wood reinforcement in timber framing, log home buildings, and mass & heavy timber construction
Can be used with both the 90° and 45° wedge washer
Can be used in Timber Concrete Composite systems, potentially replacing ASSY VG CYL
For more connection examples and information see our Design Guides
Recommended for lifting in conjunction with the Yoke systems and steel-to-wood connections
EPD available upon request
Manufactured by SWG

The range of available lengths and diameters makes the ASSY VG CSK suitable for a broad range of projects from log home building to multi-story mass timber construction. The ASSY VG CSK screw can also be used in beam upgrades and steel-to-wood connections. ASSY fully threaded screws can be used in typical reinforcing applications, including checked or cracked members, potentially restoring them to nearly their full original strength following our Timber Reinforcement Guide.

Specifications

Specification	ASSY VG CSK				Thread Length		Drive Bit	Packaging Qty.
# Item	Material	Head Type	in.	mm	in.	mm
CSK0880	Hardened Steel	Countersunk Head	5/16 x 3 1/8	8 x 80	2 1/2	61	RW 40	75
CSK08120	Hardened Steel	Countersunk Head	5/16 x 4 3/4	8 x 120	4	103	RW 40	75
CSK08140	Hardened Steel	Countersunk Head	5/16 x 5 1/2	8 x 140	4 7/8	123	RW 40	75
CSK08160	Hardened Steel	Countersunk Head	5/16 x 6 1/4	8 x 160	5 5/8	143	RW 40	75
CSK08180	Hardened Steel	Countersunk Head	5/16 x 7 1/8	8 x 180	6 3/8	163	RW 40	75
CSK08200	Hardened Steel	Countersunk Head	5/16 x 7 7/8	8 x 200	7 1/4	183	RW 40	75
CSK08220	Hardened Steel	Countersunk Head	5/16 x 8 5/8	8 x 220	8	203	RW 40	75
CSK08240	Hardened Steel	Countersunk Head	5/16 x 9 1/2	8 x 240	8 3/4	223	RW 40	75
CSK08260	Hardened Steel	Countersunk Head	5/16 x 10 1/4	8 x 260	9 5/8	243	RW 40	75
CSK08280	Hardened Steel	Countersunk Head	5/16 x 11	8 x 280	10 3/8	263	RW 40	75
CSK08300	Hardened Steel	Countersunk Head	5/16 x 11 7/8	8 x 300	11 1/8	283	RW 40	75
CSK10100	Hardened Steel	Countersunk Head	3/8 x 4	10 x 100	3	77	RW 50	50
CSK10120	Hardened Steel	Countersunk Head	3/8 x 4 3/4	10 x 120	4 1/8	102	RW 50	50
CSK10140	Hardened Steel	Countersunk Head	3/8 x 5 1/2	10 x 140	4 7/8	125	RW 50	50
CSK10160	Hardened Steel	Countersunk Head	3/8 x 6 1/4	10 x 160	5 3/4	145	RW 50	50
CSK10180	Hardened Steel	Countersunk Head	3/8 x 7 1/8	10 x 180	6 1/2	165	RW 50	50
CSK10200	Hardened Steel	Countersunk Head	3/8 x 7 7/8	10 x 200	7 1/4	185	RW 50	50
CSK10220	Hardened Steel	Countersunk Head	3/8 x 8 5/8	10 x 220	8 1/8	205	RW 50	50
CSK10240	Hardened Steel	Countersunk Head	3/8 x 9 1/2	10 x 240	8 7/8	225	RW 50	50
CSK10260	Hardened Steel	Countersunk Head	3/8 x 10 1/4	10 x 260	9 5/8	245	RW 50	50
CSK10280	Hardened Steel	Countersunk Head	3/8 x 11	10 x 280	10 3/8	265	RW 50	50
CSK10300	Hardened Steel	Countersunk Head	3/8 x 11 7/8	10 x 300	11 1/4	285	RW 50	50
CSK10320	Hardened Steel	Countersunk Head	3/8 x 12 5/8	10 x 320	12	305	RW 50	50
CSK10340	Hardened Steel	Countersunk Head	3/8 x 13 3/8	10 x 340	12 3/4	325	RW 50	50
CSK10360	Hardened Steel	Countersunk Head	3/8 x 14 1/4	10 x 360	13 5/8	345	RW 50	50
CSK10380	Hardened Steel	Countersunk Head	3/8 x 15	10 x 380	14 3/8	365	RW 50	50
CSK10400	Hardened Steel	Countersunk Head	3/8 x 15 3/4	10 x 400	15 1/8	385	RW 50	50
CSK10430	Hardened Steel	Countersunk Head	3/8 x 16 7/8	10 x 430	16 3/8	415	RW 50	25
CSK10480	Hardened Steel	Countersunk Head	3/8 x 19	10 x 480	18 1/4	465	RW 50	25
CSK10530	Hardened Steel	Countersunk Head	3/8 x 20 7/8	10 x 530	20 1/8	512	RW 50	25
CSK10580	Hardened Steel	Countersunk Head	3/8 x 22 7/8	10 x 580	22 1/8	562	RW 50	25
CSK10650	Hardened Steel	Countersunk Head	3/8 x 25 5/8	10 x 650	24 7/8	632	RW 50	25
CSK10700	Hardened Steel	Countersunk Head	3/8 x 27 5/8	10 x 700	26 7/8	682	RW 50	25
CSK10750	Hardened Steel	Countersunk Head	3/8 x 29 1/2	10 x 750	28 7/8	732	RW 50	25
CSK10800	Hardened Steel	Countersunk Head	3/8 x 31 1/2	10 x 800	30 3/4	782	RW 50	25
CSK12120	Hardened Steel	Countersunk Head	1/2 x 4 3/4	12 x 120	4 1/8	105	RW 50	50
CSK12140	Hardened Steel	Countersunk Head	1/2 x 5 1/2	12 x 140	4 7/8	125	RW 50	50
CSK12160	Hardened Steel	Countersunk Head	1/2 x 6 1/4	12 x 160	5 3/4	145	RW 50	50
CSK12180	Hardened Steel	Countersunk Head	1/2 x 7 1/8	12 x 180	6 1/2	165	RW 50	50
CSK12200	Hardened Steel	Countersunk Head	1/2 x 7 7/8	12 x 200	7 1/4	185	RW 50	50
CSK12220	Hardened Steel	Countersunk Head	1/2 x 8 5/8	12 x 220	8 1/8	205	RW 50	50
CSK12240	Hardened Steel	Countersunk Head	1/2 x 9 1/2	12 x 240	8 7/8	225	RW 50	50
CSK12260	Hardened Steel	Countersunk Head	1/2 x 10 1/4	12 x 260	9 5/8	245	RW 50	50
CSK12280	Hardened Steel	Countersunk Head	1/2 x 11	12 x 280	10 3/8	265	RW 50	50
CSK12300	Hardened Steel	Countersunk Head	1/2 x 11 7/8	12 x 300	11 1/4	285	RW 50	50
CSK12380	Hardened Steel	Countersunk Head	1/2 x 15	12 x 380	14 3/8	365	RW 50	50
CSK12480	Hardened Steel	Countersunk Head	1/2 x 19	12 x 480	18 1/4	465	RW 50	25
CSK12600	Hardened Steel	Countersunk Head	1/2 x 23 5/8	12 x 600	23	585	RW 50	25

Product	ASSY VG CSK Diameter	File Extension
ASSY VG CSK	5/16	8
ASSY VG CSK	3/8	10
ASSY VG CSK	1/2	12
ALL ABOVE

Product

ASSY VG CSK Diameter

File Extension

in.

mm.

.DXF

ASSY VG CSK

5/16

ASSY VG CSK

3/8

ASSY VG CSK

1/2

ALL ABOVE

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Countersunk Head Fully Threaded Self-Tapping Wood Screw

Countersunk Head

Fully Threaded

Tapping Tip

Product Description

Features

Specifications

2D & 3D Geometry

Design Guides

Code Approvals

ICC Code Approval ESR 3178 for Fully Threaded Screws - 2024 Edition

CCMC Code Approval 13677-R

ISO 50001 Certification for ASSY Fasteners

LA Research Report (LARR): RR 26072

White Papers

Supplementary Considerations for the Conventional Yield Model

Purlin to Beam Connections Using ASSY Fully Threaded Fasteners

Steel to CLT Lateral Connections

ASSY Screws vs. Lag Bolt

Screw Withdrawal Resistance in Near-Edge Applications

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

CLT Special Provisions

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