Heavy Duty SFIC Deadbolt, Grade 1

Heavy duty, small format interchangeable core (SFIC) security deadbolt lock, Grade 1 quality, for high traffic applications.

The CX5 enhanced DOREX GX1A heavy duty SFIC deadbolt locks are designed for high traffic areas requiring exceptional strength, durability, and high security. Always popular among door hardware and industry professionals. With its heavy duty, Grade 1 quality construction, fire rating, and enhanced CX5 high-security small format interchangeable core (SFIC), the CX5 enhanced SFIC GX1A is an ideal choice for nearly any application requiring a heavy-duty deadbolt lock with the convenience of SFIC.

  • Conforms to ANSI/BHMA A156.5 Grade 1
  • cULus Listed, 3hr Fire-rating
  • For doors 1 9⁄16–2″ (40–51 mm) thick
  • 2 3⁄4″ (70 mm) backset
    Adjustable 2 3⁄8″ or 2 3⁄4″ (60 mm or 70 mm) backset available
  • Deadbolt with hardened steel security pin and 1 in (25.4 mm) throw
  • Free spinning cylinder collar and steel security shield for enhanced protection from physical attacks
  • Fits common 2 1⁄8″ (54 mm) door preparations
  • Concealed mounting screws
  • CX5 SFIC inside: 7-pin 9807 SFIC in steel housing, CX5 keyway (0-bitted)
  • Key blanks sold separately

DOREX GX1A SFIC High Security Deadbolt

 Part Number




Single cylinder deadbolt and thumbturn with fixed 2 3⁄4" (70 mm) backset. CX5 SFIC Cylinder (0-bitted) included. Satin Chrome finish.


Single cylinder deadbolt and thumbturn with adjustable 2 3⁄8"– 2 3⁄4" (60–70 mm) backset. CX5 SFIC Cylinder (0-bitted) included. Satin Chrome finish.


Double cylinder deadbolt with fixed 2 3⁄4" (70 mm) backset.
CX5 SFIC Cylinder (0-bitted) included. Satin Chrome finish.

(3) 9807 SFIC is only available with the B keyway.

Product Page

High Security Deadbolts

For more information about this product – please contact us. Contact Form

  • We recommend that physical hardware be ordered and verified before starting any preparation, manufacturing or installation work.
  • All product installations must be done by qualified personnel using the proper mounting hardware for the appropriate surface or material.
  • We recommend that installers and manufacturers use the instructions inside the packaging provided by the manufacturer, as the manufacturer reserves the right to make technical changes, modify product or information without prior notice.
  • Do not exceed the maximum weight or dimensions recommended by the manufacturer.
  • All technical documents, drawings and instructions are provided as-is. Customers (primary or secondary) cannot derive any claim based on the use of these documents. No responsibility is or will be assumed.














Side Pin Code

51IC: Single cyl.
60IC: Double cyl.


Satin Chrome

(blank): 2 3⁄4"

(70 mm)

U: 2 3⁄8 - 2 3⁄4" (60-70 mm)


Insert your assigned
side-pin code²

(1) Other architectural finishes are available, may require minimum order quantity and/or increased lead time.
(2) Contact CX5 Customer Service to verify your assigned side pin code.
(3) 9807 SFIC is only available with the B keyway.

Unless specified otherwise, all CX5 cylinders are delivered 0-bitted, assembled complete with side pins and side bars.