Manufacturers & Suppliers of Countersunk cross recessed flat head screws in plastic
This product is regulated by the following standards:
Full List of Suppliers
Founded in 1969, Buora D.P.U. is a distributor certified following ISO 9001.
The company offers the complete range of high strength fasteners, ready on stock, both coarse and fine pitches with metric and inch threads.
Distributor of prestigious brands such as UNBRAKO and NORD-LOCK, for Buora D.P.U. the service always comes first, therefore there is not minimum quantity required.
Manufacturer of plastic fasteners for fixing and assembly: screws, washers, spacers, set screws, nuts, nut caps and screw caps, cable ties, rivets, buttons, fasteners, clips and plastic grommets.
Leader in Italy for the production and distribution of fixing systems and tools for sheet metal working
Supplier of fasteners, stampings parts, special turned parts and screw caps in plastic
Manufacturer of standard products in Polyamide, and also special products in several materials (PP, PE, PVDF, PTFE and others) Colours galore
Manufacturer of plastic fasteners (screws, washers, cable ties ecc...)
Quality certificate: EN UNI ISO 9001.2008
Manufacturer of plastic fasteners and fixing elements for the North American market.
Manufacturer specialising in glass fibre reinforced plastic fasteners. Our standard screws are manufactured in polyamide (PA) with 30%, 50% or 60% glass fibre content in natural or black colour.
We can supply materials such as PEEK with glass fibre content, plastics with special properties or requirements and colour requests.
Technical data
Countersunk cross recessed flat head screws in plastic
This product is regulated by the following standards:
Standard DIN 34811
This standard specifies dimensions and mechanical and physical properties for sizes M3 to M8 flat head plastic screws with a type Z cross recess.
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Dimensions in mm - source Din 34811 Publication date: 1999 |
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d thread size
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M 3 | M 4 | M 5 | M 6 | M 8 | ||
| P | 0.5 | 0.7 | 0.8 | 1 | 1.25 | ||
| tolerance | 6e | 6e | 6g | 6g | 6g | ||
| k nom | 1.65 | 2.7 | 2.7 | 3.3 | 4.65 | ||
| dk nom | 5.5 | 8.4 | 9.3 | 11.3 | 15.8 | ||
| cross recess nr. | 1 | 2 | 2 | 3 | 4 | ||
| m | 3 | 4.4 | 4.9 | 6.6 | 8.8 | ||
| tightening torque in Nm | 0.1 | 0.25 | 0.5 | 0.8 | 1.8 | ||
| screws shall be made of polyamide 6.6 natural colour | |||||||
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Din 34811 - commercial sizes |
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| d thread size | M 3 | M 4 | M 5 | M 6 | M 8 | ||||||||||
| nominal length l | |||||||||||||||
| 4 | X | ||||||||||||||
| 5 | X | ||||||||||||||
| 6 | X | X | X | X | |||||||||||
| 8 | X | X | X | X | X | ||||||||||
| 10 | X | X | X | X | X | ||||||||||
| 12 | X | X | X | X | X | ||||||||||
| 16 | X | X | X | X | X | ||||||||||
| 20 | X | X | X | X | X | ||||||||||
| 25 | X | X | X | X | X | ||||||||||
| 30 | X | X | X | X | X | ||||||||||
| 35 | X | X | X | X | |||||||||||
| 40 | X | X | X | X | |||||||||||
| 45 | X | X | X | ||||||||||||
| 50 | X | X | X | ||||||||||||
| 55 | X | X | |||||||||||||
| 60 | X | X | |||||||||||||
| 65 | X | ||||||||||||||
| 70 | X | ||||||||||||||
| 80 | X | ||||||||||||||
Details
Countersunk cross recessed flat head screws in plastic
|
Dimensions in mm - source Din 34811 1999 |
|||||||
|
d thread size
|
M 3 | M 4 | M 5 | M 6 | M 8 | ||
| P | 0.5 | 0.7 | 0.8 | 1 | 1.25 | ||
| tolerance | 6e | 6e | 6g | 6g | 6g | ||
| k nom | 1.65 | 2.7 | 2.7 | 3.3 | 4.65 | ||
| dk nom | 5.5 | 8.4 | 9.3 | 11.3 | 15.8 | ||
| cross recess nr. | 1 | 2 | 2 | 3 | 4 | ||
| m | 3 | 4.4 | 4.9 | 6.6 | 8.8 | ||
| tightening torque in Nm | 0.1 | 0.25 | 0.5 | 0.8 | 1.8 | ||
| screws shall be made of polyamide 6.6 natural colour | |||||||
|
Din 34811 - commercial sizes |
|||||||||||||||
| d thread size | M 3 | M 4 | M 5 | M 6 | M 8 | ||||||||||
| nominal length l | |||||||||||||||
| 4 | X | ||||||||||||||
| 5 | X | ||||||||||||||
| 6 | X | X | X | X | |||||||||||
| 8 | X | X | X | X | X | ||||||||||
| 10 | X | X | X | X | X | ||||||||||
| 12 | X | X | X | X | X | ||||||||||
| 16 | X | X | X | X | X | ||||||||||
| 20 | X | X | X | X | X | ||||||||||
| 25 | X | X | X | X | X | ||||||||||
| 30 | X | X | X | X | X | ||||||||||
| 35 | X | X | X | X | |||||||||||
| 40 | X | X | X | X | |||||||||||
| 45 | X | X | X | ||||||||||||
| 50 | X | X | X | ||||||||||||
| 55 | X | X | |||||||||||||
| 60 | X | X | |||||||||||||
| 65 | X | ||||||||||||||
| 70 | X | ||||||||||||||
| 80 | X | ||||||||||||||