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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

Specifications

Thread Size Fit	N/A #4-40 M3
Inside Diameter Code	N/A 574
Load Code	N/A 35
Minimum Inside Dia.	N/A .226 in5.74 mm
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
Material	N/A 17-7 Stainless Steel
CAD Supplier	N/A PennEngineering® (PEM®)

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Thread Size Fit

Inside Diameter Code

Load Code

Minimum Inside Dia.

Load at Working Height ± 10%

Working Height Ref.

Spring Rate

Material

CAD Supplier