Quarter Turn - PA-3500 Line Type 3522-S Stud Assemblies
Type 3522-S stud assemblies provide a nearly solid lock
without allowing the sheet separation that occurs with 3506-SC
assemblies while under tensile overload sufficient to overcome
the expansion force of their springs. With 3522-S assemblies, the
stud cam first quarter-turns onto the receptacle wire under spring
tension supplied by a curved washer. Further locking rotation then
starts to turn the cammed fastener head around a stud cross-pin.
The head is moved downward as it turns, compressing a coil spring
which is stronger than the curved washer, and finally compressing
the curved washer flat. At the fully-locked position, the assembly
has no remaining spring movement achievable by tensile overload.
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3522-S assemblies are not MIL-F-25173A approved.
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CAUTION: Any external factor that prevents the stud from
turning with initial locking torque could allow the fastener head
to rotate first. This could convey an erroneous impression of
locking while the stud cam has not locked onto the receptacle wire.
All operators of this special purpose fastener should be trained
to recognize proper stud cam locking.
Specifications
| Locking Tension: |
Variable, up to 200 lb |
| Rated Tensile and Shear: |
200 lb when used with our receptacles |
| Materials: |
Cup is mild steel. All other components are heat
treated carbon steel. |
Parts Selection *
|
| Panel Thickness |
Stud Assembly |
Cup Dimension "B" |
| inch |
mm |
inch |
mm |
| .050-.059 |
1.27-1.50 |
3522-S37-Z3CT |
.070 |
1.78 |
| .060-.069 |
1.50-1.75 |
3522-S38-Z3CT |
.080 |
2.03 |
| .070-.079 |
1.75-2.01 |
3522-S39-Z3CT |
.090 |
2.29 |
| .080-.089 |
2.01-2.26 |
3522-S40-Z3CT |
.100 |
2.54 |
| .090-.099 |
2.29-2.51 |
3522-S41-Z3CT |
.110 |
2.79 |
| .100-.109 |
2.51-2.77 |
3522-S42-Z3CT |
.120 |
3.05 |
| .110-.119 |
2.77-3.02 |
3522-S43-Z3CT |
.130 |
3.30 |
| .120-.129 |
3.02-3.28 |
3522-S44-Z3CT |
.140 |
3.56 |
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* The table assumes the locked stud panel will contact our
receptacle strip having a wire depth (Dimension "H") of
.150" (3.81 mm).
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