CSA Connector Screw
CSA connector screw is developed for installing Simpson Strong-Tie connectors to timber, in order to obtain the published load bearing capacities. The conical shape under the head ensures a full contact with the connector which increases the transfer of force. A fixed connection with larger cross-bearing capacity than for standard screws is obtained. The 6 lobe recess helps to fix the screw during insertion.
Find it in the Solid Wood Application >






Product Details
Features
Material
- Steel - Electro galvanised coating
Features
- ETA approved (ETA-04/0013)
- 6 lobe drive
- Conical shape under the head for secure fit in connector holes
- Type 17 point to prevent splitting of timber
Application
Suitable On
- Supporting / Supported member: solid wood, composite lumber, glued-laminated wood.
Common Applications
Fixing connectors to timber:
- Joist hangers
- Angle brackets
- Straps
Technical Data
Product Dimensions
| Reference | Fasteners Dimensions | ||||||||
|---|---|---|---|---|---|---|---|---|---|
| Other | Fastener dimensions[mm] | ||||||||
| Qty/box | Qty per outer box | Weight[kg] | l[mm] | lg[mm] | d₁[mm] | d[mm] | dₕ[mm] | bit[mm] | |
| CSA4.0X30 | 250.0 | - | 0.003 | 30 | 24 | 2.5 | 3.95 | 7.3 | T-15 |
| CSA5.0X25 | 250.0 | 2000.0 | 0.002 | 25 | 19 | 3.15 | 4.85 | 8.3 | T-20 |
| CSA5.0X35 | 250.0 | 2000.0 | 0.004 | 35 | 29 | 3.15 | 4.85 | 8.3 | T-20 |
| CSA5.0X40 | 250.0 | 2000.0 | 0.004 | 40 | 34 | 3.15 | 4.85 | 8.3 | T-20 |
| CSA5.0X50 | 250.0 | 2000.0 | 0.005 | 50 | 44 | 3.15 | 4.85 | 8.3 | T-20 |
| CSA5.0X80 | 200.0 | 2000.0 | 0.008 | 80 | 74 | 3.15 | 4.85 | 8.3 | T-20 |
Capacities are given for 2 mm steel plate thickness and C24 timber. To determine the capacities for other steel thickness and / or timber grades, please refer to ETA-04/0013.
Performance values based upon timber density of 350 kg/m3
Characteristic Capacities
| Reference | Screw Loads | |
|---|---|---|
| Characteristic capacities - Timber C24 acc to ETA-04/0013[kN] | ||
| Rₐₓ.ₖ[kN] | Rₗₐₜ.ₖ | |
| CSA4.0X30 | 1.28 | 1.36 |
| CSA5.0X25 | 1.38 | 1.49 |
| CSA5.0X35 | 2.11 | 1.99 |
| CSA5.0X40 | 2.47 | 2.25 |
| CSA5.0X50 | 3.2 | 2.63 |
| CSA5.0X80 | 5.38 | 3.5 |
Characteristic Capacities - used in Timber C24, for other material please refer to ETA-04/0013
Rax = axial withdrawal capacity
Rlat = lateral capacity
Certification
Declaration of Performance (DoP)
Environmental Product Declarations (EPD)
CAD and BIM Library
CSA5.0X25
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CSA5.0X80
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CSA5.0X50
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CSA4.0X30
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CSA5.0X40
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CSA5.0X35
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CSA5.0X25
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CSA5.0X80
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CSA5.0X50
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CSA4.0X30
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CSA5.0X40
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CSA5.0X35
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