Astra spring (S-003).
To suit 60 mm backset brass body mortice locks.
- 130 series (used as a bolt spring)
- 330 series (used as a bolt spring and/or a lever follower spring)
- 430 series (used as a bolt spring and/or a lever follower spring)
- 630 series (used as a bolt spring and/or a lever follower spring)
- 730 series (used as a bolt spring and/or a lever follower spring)
- 830 series (used as a bolt spring and/or a lever follower spring)
- 930 series (used as a lever follower spring)
Measures 30 x 6 mm