What are retaining pins for spring hinges

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Yes, the spring torque on 3SP1 butt hinge is adjustable.  See instructions at this link:https://static-or01.inbenta.com/fc7332911aa38d5387ffdef79e8605c6ecdc727ece31acf5bc8e26dcac5d29e4/Iv...
Model 69 the part number is 09-310Model 70 & 73, the part number is WSPART.1075
The 4110 hold open spring Cush (Spring H Cush) arm part number is 4110-3049SCNS.
The 1460 Regular Arm part numbers are: Regular Arm -- 1460-3077 or 1460-3077L for long arm (must specify finish). Regular Arm with PA -- 1460-3077PA (must specify finish). Regular Hold Open Ar...