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ASSY® 3.0 nickel-plated chipboard screw
ASSY 3.0 steel nickel plated FT raised cntrsnk. AW
SCR-RSDCS-WO-AW20-(E1J)-4X50/44
ASSY 3.0
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Nickel-plated steel, full thread, raised countersunk, AW drive
Joins wood instead of splitting it
Asymmetrical thread — greater speed
- Low screw-in torque
- High over-turning force
- Faster screwing than conventional particle board screws
- Single, double or coarse thread
AW drive — more power
- Optimal force transmission
- Excellent fit
- Rapid finding
- Screw settles securely
- Virtually no unscrewing of bit
- No wobbling
- No damage to surface coating of screw
- Only 5 bit sizes for diameters 3.0 to 12.0 mm
Ring/mating thread — less tendency of the wood to split, very few blow-outs
- Low splitting forces, in particular when screwing close to edges
- Reduction of screw-in torque
- Punch effect of ring thread or the scraping effect of the counter thread largely prevents blow-outs
- Ring thread: up to 4.5 mm
- Counter thread: from 5.0 mm
The screws are not suitable for outdoor use and for rooms subject to short-term or continuous high moisture levels! Please use ASSY® 3.0 A2 stainless steel screws in these cases.
The nickel-plated surface coating is only suitable for decorative purposes = no corrosion protection!
To attach metals to wood, machine a precise cutout in the metal tab.
ASSY 3.0 chipboard screws are optimised for use in wooden materials. When used in plastic anchors, a reduction of the load-bearing capacity is possible. Therefore, we recommend only using screws without optimised thread tips (drill tip, mating thread, ring thread, serrated edge, self-clearing groove, etc.) in plastic dowels, e.g. Würth ASSY D, prefix number 0151 (countersunk head) and prefix number 0153 (pan head).
Available work documents:
Timber dimensioning software, load tables and detailed processing instructions can be found on the service page www.wuerth.de/assy.
ETA-11/0190
When using these screws, please follow ETA-11/0190 specifications.For coniferous wood or wood-based materials made from softwood, make the fitting without a bradawl. To reduce the edge distances make a predrilled hole according to the core diameter.
When screwing into hardwood, drill according to ETA-11/0190.
 | |
Nominal diameter (d) | 4 mm |
Length (l) | 50 mm |
Thread type | Wood screw thread |
Thread design | Full thread |
Thread form | Single start thread |
Thread length (lg) | 44 mm |
Core diameter | 2.5 mm |
Shape of tip | Tip with ring thread |
Angle of the tip | 34 Degree |
Head type | Raised countersunk head |
Head diameter (dh) | 8 mm |
Head height (k) | 3.3 mm |
Internal drive | AW20 |
Material | Hardened steel |
Surface | Nickel plated |
Max. screw-in angle | 90 Degree |
Min. screw-in angle | 0 Degree |
Product weight (per item) | 2.880 g |
Suitable for use in the following materials | Board ply wood (BSP), Wood, Derived timber product, Hardwood, LVL, Softwood |
Area of application | Universal, Furniture, Body, Fitting |
Screw requiring approval | Yes |
Approval | ETA-11/0190 |
RoHS-compliant | Yes |
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