Hex Nut 

Brand New "Discontinued" Velux Short Arm Operator

​SO-90 #017603

$348.80 plus $19.95 shipping and handling 

$349.80 Plus $19.95 Shipping and handling 

​​Velux Long/Short Arm Operators 

$31.00 plus $4.95 shipping and handling 

NOTE:  Both the SO-90 #017604 and the SO-90 #017603 are shipped with the Velux Hex Nut #017690 

Skylight-Parts.com

Velux Hexnut #017690

$348.80 Plus $19.95 Shipping and handling 

Brand New "Discontinued" Velux Long Arm Operator ​

SO-90 #017604

$349.80 plus $19.95 shipping and handling