19-inch rack cage nut (light equipment) screw size
M4 · 8 to 12 mm long
Our records put 19-inch rack cage nut (light equipment) on M4 screws in lengths from 8 to 12 mm.
It is listed for M4 cage nuts for patch panels and lighter gear.
This entry is marked confirmed and comes from wansonfastener.com.
An M4 screw is 4 mm in diameter with a 0.7 mm pitch, tapped with a 3.3 mm drill; imperial look-alike: #8-32 (4.17 mm) — the standard US PC/rack screw, close but not the same.
19-inch rack cage nut (light equipment) screw specifications
One row per fitment record. Head, drive are shown only where the source states them; pitch is the ISO coarse pitch for the thread.
| Thread | Length | Pitch | Head | Drive | Where it goes | Status |
|---|---|---|---|---|---|---|
| M4 | 8–12 mm | 0.7 mm | not stated | not stated | M4 cage nuts for patch panels and lighter gearthread-locking patch | Confirmed |
Fitment records and sources
M4 cage nuts for patch panels and lighter gear
pitch 0.7 mm · tap 3.3 mm · clearance 4.5 mm · PH2 / Torx T20
How to check the screw before you buy
- Rack and enclosure hardware mixes metric and imperial (#8-32, #10-32, #6-32), so confirm the thread before forcing a screw.
- Diameter: across the threads an M4 screw measures about 4 mm with calipers (usually a hair under). If yours measures noticeably more or less, it is a different thread.
- Pitch: 0.7 mm from one thread crest to the next (14.29 crests per centimetre). A thread pitch gauge or the pitch-gauge tool settles it in seconds.
- Length: measure from under the head to the tip for pan, button, wafer and cap heads; countersunk (flat) heads are measured overall.
- The records span 8–12 mm, which means different positions take different lengths — match each hole to its own screw.
- Driver: the source does not name the drive. Standard M4 heads take PH2 for Phillips and T20 for Torx, and a 3 mm hex key for socket heads; a bit that fits loosely will cam out and strip the head.
- Tightening: no device-specific torque is published in these records. The site's general figure for M4 is about 2.0-3.0 N·m into metal threads and 0.8-1.4 N·m into plastic bosses; snug it up and stop.
Common mix-ups with M4
- Camera rig/cage accessories (SmallRig, Wooden Camera/Metabones) frequently mix M4 structural screws with 1/4-20 and 3/8-16 imperial mounting points on the same product — verify which specific fastener a manual is referencing before ordering replacements.
- Grounding-lug screws on Siemens and Beckhoff gear (M4) are earth hardware, not structural mounting screws — don't reuse them to hold a module.
Buy these screws at TechSpare Warehouse
In stock and shipped from South Carolina. Our black screws are Phillips wafer head (low profile); match the head style and length to the original before you order.
-
M4 x 10mm Black Wafer Head Charging Port Screws for GOTRAX G3, G4, GMAX & GMAX Ultra – 10-Pack Replacement
$5.49Choose size -
M4 x 10mm Black Wafer Head Fender Clamp Base Screws for Minoura KODACHI DYK-1R Rear Fender – 8-Pack Replacement
$5.49Choose size -
M4 x 12mm Black Wafer Head Chainsaw & Cut-off Saw Screws for STIHL MS 460, MS 362, TS480i & TS500i (IS-M4x12) – 10-Pack Replacement
$5.49Choose size -
M4 x 12mm Black Wafer Head Monitor VESA, Neck & Stand Screws for Dell UltraSharp U4320Q & Sceptre Monitors – 8-Pack Replacement
$5.49Choose size
More in Electronics, Racks & Enclosures
19-inch rack cage nut (metric square-hole rails)19-inch rack cage nut (mid size)19-inch rack cage nut and panel screw19-inch rack network and AV gear19-inch rack-mount audio/AV equipment19-inch server racks19in / 10in server rack cage nut and screw kit19in equipment rack (Kendall Howard cage nuts)19in rack cage nuts (alternate metric)19in rack cage nuts (metric)1U rack-mount PDU (American Denki)2.5in SATA / SAS hard drives and SSDs (SFF-8201)
Browse all 357 in Electronics, Racks & Enclosures →The same screw also fits
Devices whose records share a thread with 19-inch rack cage nut (light equipment), closest length match first.
- RCI (dormakaba) 4/7 Series electric strikes also M4 × 9.5 mm
- Wurth Elektronik WA-SSTIE steel spacer stud also M4 × 8–12 mm
- PXI instrument chassis rack flange also M4 × 8 mm
- ABB ACS880-87CC wind turbine converter (nacelle power converter hardware manual) also M4 × 10 mm
- ETC Sensor+ Dimmer Rack (theatrical stage lighting dimmer rack, rigging control gear) also M4 × 10 mm
- ETC Unison ERn Wall-mount Enclosure (theatre control processing rack) also M4 × 12 mm
- kvmswitchtech Cat5 IP Matrix KVM Switch also M4 × 10 mm
- Eurorack synthesiser case (Intellijel 7U Performance Case Gen 2) also M4 × 8–10 mm
Questions about 19-inch rack cage nut (light equipment) screws
- What size screw does 19-inch rack cage nut (light equipment) use?
- M4 × 8–12 mm for M4 cage nuts for patch panels and lighter gear.
- How long are the screws in 19-inch rack cage nut (light equipment)?
- The records range from 8 to 12 mm depending on the position, so match each screw to its own hole.
- What is the thread pitch of an M4 screw?
- 0.7 mm (coarse), which is the standard pitch for M4 machine screws; a 0.5 mm fine pitch exists but is uncommon. The tap drill is 3.3 mm and the normal clearance hole is 4.5 mm.
- What screwdriver do I need for 19-inch rack cage nut (light equipment)?
- The sources do not name the drive. For M4, Phillips heads normally take PH2 and Torx heads T20; socket heads take a 3 mm hex key.
- Can I use an imperial screw instead of M4?
- No. Imperial look-alike: #8-32 (4.17 mm) — the standard US PC/rack screw, close but not the same. Use a true M4 screw so it does not cross-thread or strip the hole.