FS Industries ENGINEERED STEEL PRODUCTS
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20 Technology Way West Greenwich, RI 02817
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4B+ STANDARD HORIZONTAL MAILBOXES

horizntal mailboxes front loading mailboxes standard horizontal mailboxes
3621
21 Front Loading
A Doors (20 usable)
3628
28 Front Loading
A Doors (27 usable)
3635
35 Front Loading
A Doors (34 usable)
aluminum mailboxes 4B+ STANDARD HORIZONTAL MAILBOXES
Made entirely of aluminum, 3600 series USPS approved
4B+ standard horizontal mailboxes are available in units with
standard A doors and larger B doors. Units with standard A
doors are available 3, 4 or 5 wide and 5, 6 or 7 doors high.
Units with larger B doors are available in 2 doors wide and
5, 6 or 7 doors high. Each aluminum door includes a five (5)
pin cylinder cam lock with two (2) keys and a 2" W x 5/8" H
clear plastic card holder (card included) to identify the tenant's
name and/or box number. The mailbox compartments are made
of sheet aluminum. Custom engraved placards (#3667) are
available as an option upon request. 4B+ standard horizontal
mailboxes feature a durable powder coated finish available in
four (4) contemporary colors and are ideal for apartments,
condominiums, commercial buildings, colleges and schools
and many other applications.
If Front Loading:
Door panel swings on a continuous hinge. One mailbox
opening is required for a master postal or commercial
lock and cannot be used for mail distribution. Units
include factory installed 3/4" W x 1/4" D trim and a solid
rear cover.
If Rear Loading
Mailboxes can be used for either USPS access
(master postal lock not required) or private access
(master commercial lock not required). All openings
are usable. Units include factory installed 3/4" W x
1/4" D trim and a removable rear cover.

Note: 3600 series 4B+ standard horizontal mailboxes have been USPS Approved to the required security
upgrades of USPS-STD-4B+. These mailboxes are approved for replacement and/or retrofit installations.
14 front loading mailboxes 21 front loading mailboxes
rear loading mailboxes Rear loading unit with removable
lift off rear cover displayed
built in mailboxes
3614
14 Front Loading
B doors (13 usable)
3621
21 Rear Loading
A doors (21 usable)
Note: For USPS serviced installation, the tenant
locks in the top row of mailboxes must be no more
than 67" above the finished floor and the bottom of
the lowest row must be no less than 28" above the
finished floor.
Note: On front loading 3600 series horizontal mailboxes,
one opening per unit is required for a master postal or
commercial lock and cannot be used for mail distribution.
On rear loading units, all openings are usable.
3600 SERIES DOOR SIZES
mailbox replacement door Model #3651¹
• Replacement "A" door and lock
STANDARD FRONT LOADING CONFIGURATIONS
mailbox replacement door

Model #3652¹
• Replacement "B"
   door and lock

Door and Compartment Identification
Each mailbox door includes a 2" W x 5/8" H clear plastic
card holder to identify the tenant's name and/or box number.
Self-adhesive numbers (1-3000 available) are supplied
upon request with a standard order. Custom identification
systems are available as an option upon request (see options).

OPTIONS & ACCESSORIES
master commercal lock Model #3675
• Master commercial lock - with (2)
   keys - factory installed if for private
   access - for front loading mailboxes
shelf adhesive numbers Model #3695
• Self-adhesive numbers - sheets of 100
master door kit
Model #3696
• 4B+ Master door security retrofit kit.
card holders
Model #3697
• Card Holder - clear plastic - card and
   metal insert included.
Model #1070
• Label holders - neatly organize and
  identify the front/rear of the mailbox
  compartments.
label holders
Each mailbox door includes a five (5) pin cylinder
cam lock with two (2) keys (1,000 different key
changes).
custom engraved placards Model #3667
• 2" W x 5/8" H custom engraved self-
   adhesive placards, are available as an
   option upon request.
lock replacement Model #3690
• Lock for 3600 series
combination lock
Model #3686
• Combination lock - 3 digit spring
   latch - additional per door - for
   installations not serviced by the
   USPS
keys Model #3698
• Additional keys per lock when ordering
Model #3699
• Key blanks - box of (50)

Order Online, by Phone, or by E-Mail

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PRICES
Model No.
Description
Unit Size
Weight
Prices
7 Door High Units - 40-3/4" H
21 A Doors (20 usable)
22-3/4"W x 40-3/4" H x 16-1/2" D
70 lbs
$2,290.00
28 A Doors (27 usable)
29-1/4"W x 40-3/4" H x 16-1/2" D
85 lbs
$3,055.00
35 A Doors (34 usable)
35-3/4"W x 40-3/4" H x 16-1/2" D
100 lbs
$3,820.00
14 B Doors (13 usable)
29-1/4"W x 40-3/4" H x 16-1/2" D
85 lbs
$2,188.00
6 Door High Units - 35-1/4" H
18 A Doors (17 usable)
22-3/4"W x 35-1/4" H x 16-1/2" D
60 lbs
$1,996.00
24 A Doors (23 usable)
29-1/4"W x 35-1/4" H x 16-1/2" D
75 lbs
$2,654.00
30 A Doors (29 usable)
35-3/4"W x 35-1/4" H x 16-1/2" D
90 lbs
$3,306.00
12 B Doors (11 usable)
29-1/4"W x 35-1/4" H x 16-1/2" D
75 lbs
$1,851.00
5 Door High Units - 29-3/4" H
15 A Doors (14 usable)
22-3/4"W x 29-3/4" H x 16-1/2" D
55 lbs
$1,637.00
20 A Doors (19 usable)
29-1/4"W x 29-3/4" H x 16-1/2" D
65 lbs
$2,183.00
25 A Doors (24 usable)
35-3/4"W x 29-3/4" H x 16-1/2" D
75 lbs
$2,729.00
10 B Doors (9 usable)
29-1/4"W x 29-3/4" H x 16-1/2" D
65 lbs
$1,541.00
Spare Parts / Options
Mater commercial lock - for front loading mailboxes
$32.10
Combination lock - 3 digit spring latch
$37.45
Set of (5) #3690 Locks - standard replacement for 3600 series doors -with two (2) keys
$96.30
Key blanks - box of (50)
$64.20
Card holder
$3.21
Self-adhesive numbers (sheet of 100)
$32.10
4B+ Master door security retrofit kit
$64.20
Label holders
$32.10
Additional keys
$5.35
3667
Custom engraved placards (2" W x 5/8" H) (Contact us to order)
$3.21
Replacement A door (6-1/2" x 5-1/4")
$64.20
Replacement B door (13" x 5-1/4")
$80.25
3668
Custom engraved door - regular - for 3600 series mailbox doors and parcel lockers
(Contact us to order)
$5.35
3674
Custom engraved door - black filled - for 3600 series mailbox doors and parcel lockers
(Contact us to order)
$5.35
¹ Specify -
² Specify - front loading (FL) or rear loading (RL) - (add 25% upcharge for rear loading (RL) units)
³ Specify - USPS access or private access (order #3675 master commercial lock for private access on
  FL units and PL's)

Standard Horizontal Mailboxes, Parcel Lockers, Aluminum Mailboxes, Mailbox Units, Letter Box Units, Security
Mailboxes, Commercial Mailboxes, USPS Approved, Front or Rear Loading, and Cam Locks from your source for
material handling equipment.
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