PennEngineering
PennEngineering
Corporate Headquarters – Danboro, PA
5190 Old Easton Rd.
Danboro, PA 18916
Phone: 215-766-8853
Toll-Free Phone: 1-800-237-4736 (U.S. only)
Email: info@pemnet.com
Website: www.pemnet.com
Print Back
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.
HSL™ Spring
HSL™ Spring_02
Unit of Measure
Items HSL™ Spring
HSL-574-35
HSL™ Spring 		HSL™ Spring
HSL-701-35
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®)