The new C9300 postal lock is for
private delivery postal mailboxes
only, for colleges, universities,
commercial buildings and mail &
CompX National is the only source
for USPS approved 401B (C9300)
commercial replacement locks.
C9300 includes lock, assembled
cam and three keys. Case quantity:
25 per box. Nickel-plated key blanks
(p/n D4400) sold in bags of 10.