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Two black metal 4U rack rails with M6 screws and cage nuts

fmuser M0035 4U Rack Rails with M6 Screws and Cage Nuts Set

SKU CH-BCT4-NJX24

Mounts 19-inch equipment in 4U space with 20 M6 screws, 20 cage nuts and 10 self-tapping screws included

  • Rack height4U
  • Cooling (optional)S-4U
  • Spec summaryS-4U, Metal, Rack Mount, 0.7 L x 1 W x 7 H inches
  • Standards metS-4U
  • Optional accessoryServer
  • Product dimensions0.7 in × 1 in × 7 in
  • Complete kit includes two 4U rails, 20 M6 screws, 20 cage nuts and 10 self-tapping screws
  • Universal 19-inch rack compatibility fits servers, network switches and audio studio equipment
  • Heavy-duty cold rolled steel with black powder coat finish delivers durable professional mounting
  • Included M6 hardware enables straightforward installation for DIY rack builds
  • M6 screws and cage nuts provide secure, stable equipment mounting for server and studio projects

4U rack rails for 19 inch equipment

This fmuser M0035 kit provides two 4U rack rails designed for standard 19 inch server and network switch cabinets. The package includes 20 sets of M6 x 20mm rack mount screws, 20 M6 cage nuts and 10 self-tapping installation screws. Heavy-duty cold rolled steel with black powder coating delivers a professional finish. IT professionals and audio engineers receive a complete mounting solution in one box.

Sustained load performance

The cold rolled steel rails maintain structural integrity under continuous equipment weight without bending. Black electro-static powder coating resists corrosion during long-term rack deployment. M6 cage nuts and screws create a secure mechanical lock that does not loosen from vibration. The 350 gram rail weight contributes to a stable mounting platform for servers and switches.

Installation notes

All necessary fasteners are supplied so no separate hardware purchases are required. Self-tapping screws simplify attachment to rack uprights without pre-drilling. Cage nuts must be seated correctly in square holes to achieve full thread engagement. Builders using threaded round-hole racks cannot use the included cage nuts.

How it compares

Measured against everything we stock in Rack Cabinets & Shelves, at today’s prices. Recalculated every night.

Price $17.99
Cheaper than about 95% of the 2,764 comparable items (median $106.99).

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Specifications

Product
Brand nameFmuser
Model nameM0035
Part numberM0035
Product colorBlack
Size & build
Rack height4U
Main materialMetal
Product dimensions0.7 in × 1 in × 7 in
Product weight350 g
Packed dimensions2.4 cm × 6.2 cm × 19.2 cm
Weight with packaging0.35 kg
In the box
Optional accessoryServer
Environment & compliance
Standards metS-4U
More details
Cooling (optional)S-4U

Questions about this item

Do the M0035 rails generate any noise or heat during continuous operation?

The rails are passive cold-rolled steel with no moving parts, so they add no noise or heat to the rack.

What rack width must I already have for these M6 rails and cage nuts to fit?

They are designed for standard 19 inch rack mount equipment.

Will the 4U rails and M6 hardware work with older 19 inch servers and switches I want to keep?

Yes — the universal 19 inch spacing and included M6 screws and cage nuts match legacy gear that uses the same standard.

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