Blum Left-Handed 3-Way Adjustable Tandem Locking Device, Includes Up & Down, Side-To-Side, and up to 2.5mm Outward Adjustability
Rating 4.6 | 299 Reviews | Our Item Number BST51.1901PSL
$
4.60
$4.46/ea for 100
$6.57
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Ends Oct 07
Ends Oct 07
Adjustment Types:
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Product Info Side Adjustment: 1/16 Inch, See more product details
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Size Info
- Height Adjustment : 1/8 Inch
- Side Adjustment : 1/16 Inch
- Depth Adjustment : 3/32 Inch, preset at 0
- Mount Type : Left Standard with Depth Adjustment
- Adjustments : Height, Side, and Depth
- Includes : (1) Depth Adjustment Left Hand Locking Device
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Manufacturer Info
- Manufacturer : Blum
- Manufacturer Part # : T51.1901.PS L
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Other Important Info
- Notes : One right & one left required per drawer
- Product Type : Locking Device
- Sold : Each
Manufacturer Resources
Blum Tandem Under Mount Drawer Slides 
How to install Blum Tandem Drawer Slides Standard Locking Devices- Up and down adjustment
Blum Left-Handed Standard Tandem Locking Device, Includes Up and Down Adjustability 
Blum Right-Handed Standard Tandem Locking Device, Includes Up and Down Adjustability Standard Locking Devices- Up and down & side-to-side adjustable.
Blum Left-Handed Standard 2-Way Tandem Locking Device, Includes Up and Down, and Side-to-Side Adjustability 
Blum Right-Handed Standard 2-Way Tandem Locking Device, Includes Up and Down, and Side-to-Side Adjustability Narrow Drawer Locking Devices
![Narrow Tandem Locking Device, Left Hand, Minimum Inside Drawer Width 3-3/4" , Up and Down Adjustable](https://cdn-media.cabinetparts.com/primary_product.jpg?id=9272&p=sq-sm "Narrow Tandem Locking Device, Left Hand, Minimum Inside Drawer Width 3-3/4" , Up and Down Adjustable")
Narrow Tandem Locking Device, Left Hand, Minimum Inside Drawer Width 3-3/4" , Up and Down Adjustable ![Narrow Tandem Locking Device, Right Hand, Minimum Inside Drawer Width 3-3/4" , Up and Down Adjustable](https://cdn-media.cabinetparts.com/primary_product.jpg?id=9273&p=sq-sm "Narrow Tandem Locking Device, Right Hand, Minimum Inside Drawer Width 3-3/4" , Up and Down Adjustable")
Narrow Tandem Locking Device, Right Hand, Minimum Inside Drawer Width 3-3/4" , Up and Down Adjustable Accessories
![BLUM Lateral Stabilizer Rod Kit for Tandem 9" to 27" Length 563/569 Slides, Maximum Opening Width 46-21/32".](https://cdn-media.cabinetparts.com/primary_product.jpg?id=122153&p=sq-sm "BLUM Lateral Stabilizer Rod Kit for Tandem 9" to 27" Length 563/569 Slides, Maximum Opening Width 46-21/32".")
BLUM Lateral Stabilizer Rod Kit for Tandem 9" to 27" Length 563/569 Slides, Maximum Opening Width 46-21/32". 
Blum Drawer Front Adjuster 
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#7 x 5/8 inch Flat Head Screws (25 Pack) Compatible Drawer Boxes (Many Sizes Available)
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![White Birch 21" Depth Drawer Box for 6" Opening Width x 4-1/2" Minimum Height, Prepared for Undermount Slides Slides, Actual Drawer Size 5-5/8" W x 3-1/2" H x 21" D](https://cdn-media.cabinetparts.com/primary_product.jpg?id=48068&p=sq-sm "White Birch 21" Depth Drawer Box for 6" Opening Width x 4-1/2" Minimum Height, Prepared for Undermount Slides Slides, Actual Drawer Size 5-5/8" W x 3-1/2" H x 21" D")
White Birch 21" Depth Drawer Box for 6" Opening Width x 4-1/2" Minimum Height, Prepared for Undermount Slides Slides, Actual Drawer Size 5-5/8" W x 3-1/2" H x 21" D ![White Birch 21" Depth Drawer Box with Scoop for 6" Opening Width x 4-1/2" Minimum Height, Prepared for Undermount Slides Slides, Actual Drawer Size 5-5/8" W x 3-1/2" H x 21" D](https://cdn-media.cabinetparts.com/primary_product.jpg?id=49980&p=sq-sm "White Birch 21" Depth Drawer Box with Scoop for 6" Opening Width x 4-1/2" Minimum Height, Prepared for Undermount Slides Slides, Actual Drawer Size 5-5/8" W x 3-1/2" H x 21" D")
White Birch 21" Depth Drawer Box with Scoop for 6" Opening Width x 4-1/2" Minimum Height, Prepared for Undermount Slides Slides, Actual Drawer Size 5-5/8" W x 3-1/2" H x 21" D Other - TANDEM 563 Series Drawer Slides by Blum
![Blum Tandem 563H 21" Length Blumotion Soft-Close Undermount Full-Extension Slide for 1/2 Inch to 5/8 Inch Thick Drawer Sides, Front Locking Clips Required, 100 lb. Load Rating](https://cdn-media.cabinetparts.com/primary_product.jpg?id=9167&p=sq-sm "Blum Tandem 563H 21" Length Blumotion Soft-Close Undermount Full-Extension Slide for 1/2 Inch to 5/8 Inch Thick Drawer Sides, Front Locking Clips Required, 100 lb. Load Rating")
Blum Tandem 563H 21" Length Blumotion Soft-Close Undermount Full-Extension Slide for 1/2 Inch to 5/8 Inch Thick Drawer Sides, Front Locking Clips Required, 100 lb. Load Rating ![Blum Tandem 563H 18" Length Blumotion Soft-Close Undermount Full-Extension Slide for 1/2 Inch to 5/8 Inch Thick Drawer Sides, Front Locking Clips Required, 100 lb. Load Rating](https://cdn-media.cabinetparts.com/primary_product.jpg?id=9166&p=sq-sm "Blum Tandem 563H 18" Length Blumotion Soft-Close Undermount Full-Extension Slide for 1/2 Inch to 5/8 Inch Thick Drawer Sides, Front Locking Clips Required, 100 lb. Load Rating")
Blum Tandem 563H 18" Length Blumotion Soft-Close Undermount Full-Extension Slide for 1/2 Inch to 5/8 Inch Thick Drawer Sides, Front Locking Clips Required, 100 lb. Load Rating ![Blum Tandem 563F 21" Length Blumotion Soft-Close Undermount Full-Extension Slide for 5/8 to 3/4 Inch Thick Drawer Sides, Front Locking Clips Required, 100 lb. Load Rating](https://cdn-media.cabinetparts.com/primary_product.jpg?id=9162&p=sq-sm "Blum Tandem 563F 21" Length Blumotion Soft-Close Undermount Full-Extension Slide for 5/8 to 3/4 Inch Thick Drawer Sides, Front Locking Clips Required, 100 lb. Load Rating")
Blum Tandem 563F 21" Length Blumotion Soft-Close Undermount Full-Extension Slide for 5/8 to 3/4 Inch Thick Drawer Sides, Front Locking Clips Required, 100 lb. Load Rating ![Blum Tandem 563H 15" Length Blumotion Soft-Close Undermount Full-Extension Slide for 1/2 Inch to 5/8 Inch Thick Drawer Sides, Front Locking Clips Required, 100 lb. Load Rating](https://cdn-media.cabinetparts.com/primary_product.jpg?id=9165&p=sq-sm "Blum Tandem 563H 15" Length Blumotion Soft-Close Undermount Full-Extension Slide for 1/2 Inch to 5/8 Inch Thick Drawer Sides, Front Locking Clips Required, 100 lb. Load Rating")
Blum Tandem 563H 15" Length Blumotion Soft-Close Undermount Full-Extension Slide for 1/2 Inch to 5/8 Inch Thick Drawer Sides, Front Locking Clips Required, 100 lb. Load Rating ![Blum Tandem 563F 18" Length Blumotion Soft-Close Undermount Full-Extension Slide for 5/8 to 3/4 Inch Thick Drawer Sides, Front Locking Clips Required, 100 lb. Load Rating](https://cdn-media.cabinetparts.com/primary_product.jpg?id=9161&p=sq-sm "Blum Tandem 563F 18" Length Blumotion Soft-Close Undermount Full-Extension Slide for 5/8 to 3/4 Inch Thick Drawer Sides, Front Locking Clips Required, 100 lb. Load Rating")
Blum Tandem 563F 18" Length Blumotion Soft-Close Undermount Full-Extension Slide for 5/8 to 3/4 Inch Thick Drawer Sides, Front Locking Clips Required, 100 lb. Load Rating ![Blum Tandem 563H 12" Length Blumotion Soft-Close Undermount Full-Extension Slide for 1/2 Inch to 5/8 Inch Thick Drawer Sides, Front Locking Clips Required, 100 lb. Load Rating](https://cdn-media.cabinetparts.com/primary_product.jpg?id=9164&p=sq-sm "Blum Tandem 563H 12" Length Blumotion Soft-Close Undermount Full-Extension Slide for 1/2 Inch to 5/8 Inch Thick Drawer Sides, Front Locking Clips Required, 100 lb. Load Rating")
Blum Tandem 563H 12" Length Blumotion Soft-Close Undermount Full-Extension Slide for 1/2 Inch to 5/8 Inch Thick Drawer Sides, Front Locking Clips Required, 100 lb. Load Rating 
15 Inch Length Tandem 563F Undermount Full-Extension Soft-Close Drawer Slide for Drawer Side Width 5/8 to 3/4 Inch, Front Locking Clips Required, 100 lb. Load Rating ![Blum Tandem 563F 12" Length Blumotion Soft-Close Undermount Full-Extension Slide for 5/8 to 3/4 Inch Thick Drawer Sides, Front Locking Clips Required, 100 lb. Load Rating](https://cdn-media.cabinetparts.com/primary_product.jpg?id=9159&p=sq-sm "Blum Tandem 563F 12" Length Blumotion Soft-Close Undermount Full-Extension Slide for 5/8 to 3/4 Inch Thick Drawer Sides, Front Locking Clips Required, 100 lb. Load Rating")
Blum Tandem 563F 12" Length Blumotion Soft-Close Undermount Full-Extension Slide for 5/8 to 3/4 Inch Thick Drawer Sides, Front Locking Clips Required, 100 lb. Load Rating ![Blum Tandem 563H 9" Length Soft-Close Undermount 3/4Extension Slide for 1/2 Inch to 5/8" Drawer Sides, Front Locking Clips Required, Side-Mounting Only](https://cdn-media.cabinetparts.com/primary_product.jpg?id=9163&p=sq-sm "Blum Tandem 563H 9" Length Soft-Close Undermount 3/4Extension Slide for 1/2 Inch to 5/8" Drawer Sides, Front Locking Clips Required, Side-Mounting Only")
Blum Tandem 563H 9" Length Soft-Close Undermount 3/4Extension Slide for 1/2 Inch to 5/8" Drawer Sides, Front Locking Clips Required, Side-Mounting Only ![Blum Tandem 563F 9" Length Soft-Close Undermount 3/4 Extension Slide for 5/8 to 3/4" Drawer Sides, Front Locking Clips Required, Side-Mounting Only](https://cdn-media.cabinetparts.com/primary_product.jpg?id=9158&p=sq-sm "Blum Tandem 563F 9" Length Soft-Close Undermount 3/4 Extension Slide for 5/8 to 3/4" Drawer Sides, Front Locking Clips Required, Side-Mounting Only")
Blum Tandem 563F 9" Length Soft-Close Undermount 3/4 Extension Slide for 5/8 to 3/4" Drawer Sides, Front Locking Clips Required, Side-Mounting Only ![Tandem 563, 21" Length Blumotion Soft Close Undermount Slide for Frameless Construction, 5/8” Drawer Side Thickness, Full Extension, 90 lb. Load Rating](https://cdn-media.cabinetparts.com/primary_product.jpg?id=9157&p=sq-sm "Tandem 563, 21" Length Blumotion Soft Close Undermount Slide for Frameless Construction, 5/8” Drawer Side Thickness, Full Extension, 90 lb. Load Rating")
Tandem 563, 21" Length Blumotion Soft Close Undermount Slide for Frameless Construction, 5/8” Drawer Side Thickness, Full Extension, 90 lb. Load Rating 
Tandem Rear Mounting Bracket, Sold Individually 
Blum Right-Handed 3-Way Adjustable Tandem Locking Device, Includes Up & Down, Side-To-Side, and up to 2.5mm Outward Adjustability 
Blum Left-Handed 3-Way Adjustable Tandem Locking Device, Includes Up & Down, Side-To-Side, and up to 2.5mm Outward Adjustability 
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Our customers say Blum products...
4.6 out of 5
based on 299 ratings
based on 299 ratings
"These reviews are from our customers who have purchased Blum products."
- 5 of 5 Fine product February 16th, 2026
by Ronald from South Dayton, NYWorked as expected. Used them many times before. No problems.
- 5 of 5 Perfect December 31st, 2025
by Gregory from San Francisco, CA(no comment given)
- 5 of 5 Perfect July 31st, 2025
by Michael from Moorestown, NJ(no comment given)
- 5 of 5 Perfect July 7th, 2025
by William from LITTLE ELM, TX(no comment given)
- 5 of 5 The most effective method to get straight drawers May 8th, 2025
by Richard from Texarkana, TXVery easy to install and adjust
Reviews about us...
- 5 of 5 | September 29th, 2026
They had the replacement part and delivered it quickly. Very happy with Cabinet Parts.
- 4 of 5 | September 28th, 2026
I love the heft and look of the bronze plates. My only concern is with the mounting screws. For such a large plate and for security matters the screws are only 1/2 inch long. They would be easy to pry off. I have bought 1 inch screws, (the longest that wo
- 4 of 5 | September 27th, 2026
we had significant difficulty deciphering the measurements needed. Cabinet parts develop drawings to illustrate the needed dimensions.
- 5 of 5 | September 27th, 2026
And fast shipping . Thank you!
- 5 of 5 | September 26th, 2026
I’ve been looking for these parts and you delivered! Thanks
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