1 / 3Prime-Line U 9970 Single-Cylinder Deadlock, Brass-Colour Diecast
Prime-Line U 9970 is a surface-mounted, single-cylinder deadlock with a brass-colour diecast finish and an angled strike. The listing describes a jimmy-resistant design and states it fits wood or metal doors 1-3/8” to 2-3/8” thick, subject to checking the required door measurements.
At a glance
- Surface-mounted cross-bolt deadlock with an angled strike and tamper-resistant shutter guard, as described by the listing.
- The listing states compatibility with wood or metal doors 1-3/8” to 2-3/8” thick and installation on either left- or right-hinged doors, inside or outside.
- Requires a 1-1/4” hole and uses a Segal keyway.
Pros and cons
Pros
- The listed kit includes the strike, rim cylinder, two keys, mounting plate, fasteners and shutter guard.
- The stated door-thickness range and left- or right-hinged installation give flexibility for suitable doors.
- Customer feedback reports easy installation and positive experiences with compatibility and functionality.
Cons
- Customer feedback includes reports of breakage within weeks and criticism of cheap-feeling construction and flimsy screws.
- Feedback on key operation and fit is mixed, so compatibility and smooth operation may not be consistent for every installation.
Technical specifications
11 specifications| Brand | Prime-Line |
|---|---|
| Model | Jimmy-Resistant Deadlock, Diecast, Brass Color, Angle Strike, Single Cylinder |
| Lock type | Key Lock |
| Style | Single Cylinder |
| Colour | Brass |
| Control method listed | Touch |
|---|
| Form factor | D-Shaped |
|---|---|
| Dimensions listed | 25 x 109 x 73 millimetres |
| Weight listed | 1 Pounds |
| Material listed | Diecast |
|---|---|
| Finish | Polished |
What to know before buying
- Measure the door backset, cross bore and thickness before purchase. The listing also says the lock requires a 1-1/4” hole, and the tailpiece may need shortening if it is too long for the door.
What’s in the box
Included- Angled strike
- Rim cylinder
- Two keys
- Cylindrical trim ring
- Fasteners
- Mounting plate
- Installation instructions
- Tamper-resistant shutter guard
Who is it for?
A good fit for
- Buyers seeking a surface-mounted, key-operated deadlock for a door within the stated thickness range.
- Installations where a brass-colour finish, angled strike and included shutter guard are desired.
Less suited to
- Doors outside the stated thickness range or installations that cannot accommodate the required hole and measurements.
- Buyers who need a mortice lock or a separately documented security certification, neither of which is established by this listing.
Customer reviews on Amazon
- 5 stars
74% 74% - 4 stars
14% 14% - 3 stars
6% 6% - 2 stars
2% 2% - 1 star
4% 4%
Customer feedback highlights easy installation and positive experiences with compatibility and functionality, which may matter for a surface-mounted lock fitted to a suitable door. However, reports on durability, key operation and fit are mixed, and some feedback criticises build quality and screws. Treat the stated fit range as a starting point and check the door dimensions carefully. The overall ratings lean positive, but ratings alone do not establish long-term reliability.
Positive themes
- Customers report that installation is easy.
- Feedback includes positive views of compatibility and functionality.
Negative themes
- Some customers report breakage within weeks and criticise the build quality and screws.
Mixed feedback
- Durability, key operation and fit receive mixed feedback.
Frequently asked questions
What door thickness does the listing specify?
It states a range of 1-3/8” to 2-3/8” for wood or metal doors. Measure the door and check the other required dimensions before buying.
What hole and keyway does it require?
The listing specifies a 1-1/4” hole and a Segal keyway.
Can it be fitted to either hand of door?
The listing says it can be installed on left- or right-hinged doors, inside or outside, provided the door and measurements are suitable.
Does the package include keys and installation parts?
The stated contents include two keys, an angled strike, rim cylinder, trim ring, fasteners, mounting plate, instructions and a tamper-resistant shutter guard.
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