How to determine a quarter turn
1) Determine the strength of the connection, quantify how many Newton the connection needs to hold.
2) With the Newton value, you can determine the series:
| Series | Force in Newton | Applications |
|---|---|---|
| 5F | 670N | Light duty |
| 99F | 700N | |
| 50F | 900N | |
| 2600/2700 | 1330N | Medium duty |
| 50F | 3700N | |
| 4002 | 4700N | |
| 991S | 10000N | Heavy duty |
3) You take the catalogue at the page of the series and look for receptacles.
Choose here the receptacle that best fits to your application.
or 
or .....other.....
Remember the "type-number" of the receptacle.
4) With the help of the thickness of the plate and the frame and the receptacle number you can determine the correct formula on the first page, you arrive to a certain "G" value.
Usually G = P + F
5) You choose the correct stud
or 
or 
or ....other....
6) Once the stud chosen, you can now determine the part number. On the place of the "star" = "*" you fill in the G-value.
7) You choose the retaining washer
or 
8) Dependent on the series you can choose also to take a grommet, but this had an influence on the G-value
9) You are now ready to determine the quantity of pieces and to forward the correct part numbers
10) Send your inquiry, with VAT number and full contact details