1. Forces and hole diameters (sizes)
The size of the quarter turn fastener can
be determined by the occurring forces
(see table of forces), by existing
hole sizes or aesthetics.
2. Standard heads and material of
Once the size of the stud has been selected, the shape of the head
and the material must be chosen.
For special heads take our resume on pages E-5+6. To determine the
length of the stud see page E-4.
3. Securing the Stud
You have to choose the best method of securing the stud at the
loose part. For temperatures up to 90 C the standard washer "R" is adequate
and the most popular method of retention. For temperatures exceeding
90¡C the conical wire spring or circlip are recommended.
4. Fixing-method for Spring Clips
The Clip is the least expensive item and dependant upon customer
preference and mounting position. The Clip can be assembled using
rivets, spot welding, screws, clip-ins, slide-ons and angle-plates.
To ease a conversion to the BI-FIX quarter-turn system, we
offer spring-clips whose hole patterns correspond to those
of other producers.
5. Choice of Stud
All series are available in any grip
length, standard items are graduated
as listed. Specials are available
to customer requirements: