What's de distance between the 2 holes to attach the base to the slides on 405 and 455 mm versions?

For a 405mm drawer slide, the distance between the two holes connecting the base to the slide is 260mm. For a 455mm drawer slide, the distance between the two holes on the base to the slide is 310mm.

Do they lock out when extended?

Thank you for your inquiry, this keyboard slide in the innermost position of the slide in the cushion pad can be locked to prevent the keyboard tray from slipping out without force.

Will this fit a keyboard of size 50 cm x 30cm?

They are runners so you need to add a base for the keyboard to sit on which can be any size you want it to be within reason

what is the distance between the support brackets (internal, external) and what is the width of the bracket where it attaches to desk? Many thanks.

The overall width of the bracket is 50mm. The width of the bracket that attaches to the desk is 25mm and the width of the bracket that attaches to the underside of the keyboard tray is 15mm. BTW excellent brackets. Better than anything from the usual DIY stores. Only thing it takes about a week or so to arrive as from china but dont let that put you off. Very solid.

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305 mm Drawer Slides & Keyboard Tray Slides

Product ID: 163448329

Details

Brand
FRMSAET
Colour
Black
Finish type
Steel
Material
Alloy Steel
Product dimensions
30.5L x 30.5W

📏Adjustable heights

🔇Quiet performance

⚙️Heavy-duty steel

€ 52.25

Duties & taxes included

In stock

Sold byAmazon GreeceDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

🔧 Elevate Your Workspace with Effortless Style!

SMOOTH OPERATION - Ball bearings ensure a whisper-quiet glide.
EASY INSTALLATION - Set up in minutes with included hardware.
IMPRESSIVE CAPACITY - Supports up to 40 lbs for all your storage needs.
STURDY CONSTRUCTION - Crafted from 1.5mm cold rolled steel for unmatched durability.
VERSATILE APPLICATIONS - Perfect for desks, cabinets, and more!

The FRMSAET Heavy Duty Keyboard Slides are designed for versatility and strength, featuring a robust 1.5mm cold rolled steel construction with a sleek black powder coat finish. These slides are perfect for various applications, from office desks to kitchen drawers, and support a maximum weight capacity of 40 lbs. With easy installation and a humanized design that includes adjustable heights and smooth ball bearing operation, they are the ideal solution for enhancing your workspace.

Specifications

ASIN	B07FY5FVWQ
Best Sellers Rank	29,270 in DIY & Tools ( See Top 100 in DIY & Tools ) 46 in Cabinet Drawer Slides
Brand	FRMSAET
Colour	Black
Country of Origin	China
Customer Reviews	4.4 4.4 out of 5 stars (1,802)
Drawer Type	Under mount with ball bearing
Finish	Steel
Item Dimensions L x W x Thickness	30.5L x 30.5W x 30.5Th centimetres
Item Highlight	Thickened Metal Rails Ball Bearing Cabinet Hardware for Cabinet Drawer、Keyboard Drawer、Tool Drawer with Adjustable Height
Manufacturer	FRMSAET
Material	Alloy Steel, Metal
Maximum Weight Capacity	40 Pounds
Model Number	Noir
Mounting Type	Bottom Mount
Number of Items	1
UPC	768111356804

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