Catalog

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HSL springs are engineered to provide a reliable and repeatable spring rate when assembled with mating PEM hardware. The spring rate is critical to the successful assembly of your heat sink.

Clamp load will be determined by the spring rate and deflection that is designed into the joint.
Unit of Measure
Items
HSL™ Spring

HSL™ Spring
HSL™ Spring

HSL™ Spring
Thread Size Fit N/A #4-40 M3 N/A #6-32
Inside Diameter Code N/A 574 N/A 701
Load Code N/A 35
Minimum Inside Dia.
N/A .226 in5.74 mm HSL-Spring_02.jpg N/A .276 in7.01 mm HSL-Spring_02.jpg
Load at Working Height ± 10% N/A 7.87 lb35 N
Working Height Ref. N/A .270 in6.86 mm
Spring Rate N/A 74 lb/in12.96 N/mm N/A 39 lb/in6.84 N/mm
Material N/A 17-7 Stainless Steel
CAD Supplier N/A PennEngineering® (PEM®)