ASSY ® 3.0 HCR chipboard screw
ASSY 3.0 HCR 1.4529 partial thread cntrsnk head AW
SCR-CS-WO-HCR-1.4529-AW20-4X60/39
ASSY 3.0
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Minimal splitting effect, especially when screwing in near the edge
Tip with ring thread
Short screw-in times
Asymmetrical coarse thread
Countersunk head with AW drive
Corrosion-resistant HCR stainless steel (material no. 1.4529)
ETA-11/0190
Pre-drilling to the core diameter in solid hard woods
ASSY 3.0 chipboard screws are optimised for use in wooden materials. Use in plastic anchors may cause a reduction in the admissible load. Therefore, when using plastic anchors, we recommend only using screws without optimised thread tips (drill tip, mating thread, ring thread, serrated edge, self-clearing groove etc.), such as Würth ASSY D, prefix number 0151 (countersunk head) and prefix number 0153 (pan head).
When using these screws, the ETA-11/0190 specifications must be observed.
Available work documents:
Timber dimensioning software, load tables and detailed processing instructions can be found on the service page www.wuerth.de/assy.
Datasheets(X)
ASSY HCR 3.0 are made of highly corrosion-resistant steel, material no. 1.4529 (corrosion resistance class V, Appr. No. Z-30.3-6, suitable for use in indoor swimming pool areas) and are suitable and approved for use in the following areas:
- Of ceiling and wall coverings in atmospheres containing chlorine, e.g. indoor pools (water conforming to the Drinking Water Ordinance!)
- For components in stables
- In woods with a high tannic acid content
- Particularly good resistance to very aggressive media such as phosphoric acid, sulphuric acid and hydrochloric acid media, high resistance to pitting and stress corrosion cracking
Screw-in angle 0° to 90°. For coniferous wood or wood-based materials made from softwood, the screw connection is made without pre-drilling. To reduce the edge distances, a pre-drilled hole can be made according to the core diameter. When screwing into hardwood, pre-drill according to ETA-11/0190.
 | |
Nominal diameter (d) | 4 mm |
Length (l) | 60 mm |
Head type | Countersunk milling head |
Head diameter (dh) | 8 mm |
Head height (k) | 2.5 mm |
Internal drive | AW20 |
Thread type | Wood screw thread |
Thread design | Partial thread |
Thread form | Single start thread |
Thread length (lg) | 39 mm |
Core diameter | 2.5 mm |
Shape of tip | Tip with ring thread |
Material | High corrosion-resistant steel, 1.4529, X1NiCrMoCuN25-20-7 |
Surface | Plain |
Min./max. screw-in angle | 0-90 Degree |
Product weight (per item) | 3.384 g |
Approval | ETA-11/0190 |
Screw requiring approval | Yes |
RoHS-compliant | Yes |
| Steel quality Short name | Material no. | Environment | ||||||||||||
| Country | City | Industry | Close to the sea | |||||||||||
| N | M | H | N | M | H | N | M | H | N | M | H | |||
| The range of applications of the various stainless steels is detailed in the following table issued by the ISER (German Information Office for Rustproof Stainless Steel, Non-Rusting Steels for Various Environmental Conditions, www.edelstahl-rostfrei.de, Information Sheet 828). Rustproof stainless steels (e.g. material no. 1.4016) are recommended in terms of atmospheric conditions only for use in a rural environment, and in this respect only subject to significant restrictions. We therefore recommend only using austenitic stainless steels for outdoor applications, taking the environmental conditions into account. | ||||||||||||||
| X1NiCrMoCuN25-20-7 | 1.4529 | Würth HCR (0180 904...) | + | + | + | + | + | + | + | + | + | + | + | + |
| X1NiCrMoCu25-20-5 | 1.4539 | Würth HCR (0180 940...) | x | x | x | x | x | x | x | x | + | x | x | + |
| X5CrNiMo17-12-2 | 1.4401/1.4578 | Würth A4 (0169 015...) | x | x | x | x | + | + | + | + | (+) | + | + | (+) |
| X5Cr-Ni18-10 | 1.4301/1.4567 | Würth A2 (0166, 0180, 0181) | + | + | + | + | + | (+) | (+) | (+) | - | + | (+) | - |
| X6Cr17 | 1.4006 | Many competitors | (+) | (+) | (+) | (+) | - | - | (+) | - | - | - | - | - |
| Stainless steels for various ambient conditions (www.edelstahl-rostfrei.de, Information Leaflet 828) | ||||||||||||||
| N= lowest corrosion load within the respective environment, indicated e.g. by low temperatures and low humidity M= medium corrosion load within the respective environment H= highest corrosion load within the respective environment, e.g. due to continuous high humidity, high ambient temperatures, particularly aggressive air pollution x= meets the requirements in principle, however, cheaper steels may also be sufficient += probably best material choice in terms of corrosion resistance and costs (+)= adequate performance as long as certain precautionary steps are taken. Smooth surfaces and regular cleaning are required in particular -= heavy corrosion expected | ||||||||||||||
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