1 / 6Ubisin B4503-10@A-UB Rear Mounting Brackets, 10 Pairs
Pairs: Ubisin B4503-10@A-UB rear mounting brackets are listed for 45 mm (1.77-inch) drawer slides and face-frame cabinets. The steel brackets are intended as rear mounting hardware, not drawer slides themselves. Check slide width and the listed bracket dimensions before ordering.
At a glance
- Designed for face-frame cabinets and slides listed as 45 mm (1.77 inches) wide.
- Listing gives a bracket width of 45 mm and length of 92.7 mm.
- Manufacturer describes the brackets as cold-rolled steel with a zinc-plated finish.
- Installation instructions call for four screws and parallel alignment with the rails.
Reference price: $29.99
Price checked: Nov 12, 2026
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Pros and cons
Pros
- Ten pairs provide mounting brackets for multiple drawers or replacement work.
- The listed slide-width fit and bracket measurements give useful dimensions to compare before purchase.
- The stated screw and alignment guidance clarifies a key installation requirement.
Technical specifications
11 specifications| Brand | Ubisin |
|---|---|
| Model | B4503-10@A-UB |
| Compatible slide width | Suitable for the width of 45mm(1.77 inch) drawer slides |
|---|---|
| Bracket width | 1.77 inch(45mm) |
| Bracket length | 3.65 inch(92.7mm) |
| Installation guidance | Only 4 screws are required for mounting, note that they need to be parallel to the rails |
| Material listed | Zinc Plated Steel |
|---|---|
| Finish | Zinc Plated |
| Color | Silver |
| Weight listed | 2.3 pounds |
|---|
| Bracket quantity | 10 pairs |
|---|
What to know before buying
Listing details to confirm
The listing describes the package as 10 pairs of metal brackets, while its included-components field says “Case.” Confirm the selected listing's exact package contents. The listed 45 mm slide width and 45 mm bracket width are given separately, so compare them along with the 92.7 mm length against your installation.
What’s in the box
- 10 pairs of metal bracketsCheck selected pack
- CaseIncluded
Check which accessories are included in your selected pack before buying.
Who is it for?
A good fit for
- Face-frame cabinet projects using drawer slides listed as 45 mm (1.77 inches) wide.
- Buyers replacing or adding rear mounting brackets for compatible drawer-slide installations.
Less suited to
- Buyers who need drawer slides rather than mounting brackets.
- Installations where the slide width or cabinet arrangement does not match the listed fit.

Customer reviews on Amazon
- 5 stars
71% 71% - 4 stars
13% 13% - 3 stars
8% 8% - 2 stars
5% 5% - 1 star
3% 3%
Customer feedback supplied for this listing describes drawer slides, not these rear mounting brackets. It reports favorable impressions of slide quality, installation and operation, alongside mixed comments about soft-close force and sturdiness, including reports of ball bearings falling out. Those perceptions do not establish bracket performance or compatibility. The aggregate ratings are generally favorable but include lower ratings, and do not identify reasons or confirm opinions about this bracket product.
Frequently asked questions
What drawer slides are these brackets intended for?
The listing specifies drawer slides with a width of 45 mm (1.77 inches) and identifies face-frame cabinets as an intended use.
What are the listed bracket dimensions?
The listing gives a width of 1.77 inches (45 mm) and a length of 3.65 inches (92.7 mm).
How does the listing say to install them?
It says to use four screws and keep the brackets parallel to the rails.
How many brackets are included?
The title and feature text claim 10 pairs of metal brackets. The included-components field instead names a case, so confirm package contents for the selected listing.

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