Testing of hinge-screw withdrawal

- measurements of hinge and bores in mm
- hinge screw withdrawal in kN
- results given are the average of at least 10 tests

Preparation of the tests

- skin3 mm thin particle board
- internal stiles    RS3 630 kg/m3-VSP
- boring with step borer :
7,5 mm  opening side = ca.13 mm
6,5 / 6,0 mm  continuous


Hinge
Thread
V 0020
metric thread M 8

V 0020 SG
cut thread
conic tenon
width of stiles
internal stiles
35 mm
+ RS
45 mm

35 mm
+ RS
45 mm

boring7,5/6,57,5/6,57,5/6,07,5/6,0


33 HVA

650 kg/m3


4,5 kN


4,5 kN


4,7 kN


4,8 kN


33 HVB

700 kg/m3


5,1 kN


5,4 kN


5,6 kN


5,7 kN


Fichte

ca. 480 kg/m3


4,7 kN


5,0 kN


4,9 kN


5,3 kN

Recommendation:

To avoid marks on the surface of the rebate and the opening side we recommend to use hinges with cut thread.