Tektronix RM5 rackmount kit (5/6 Series MSO) screw size
M3 / M4 / M5 / M6 · 6 to 16 mm long
Tektronix RM5 rackmount kit (5/6 Series MSO) takes M3, M4, M5 and M6 metric screws in lengths from 6 to 16 mm.
There are 4 separate fitment records for it, including kit hardware: "SCREW, MACHINE, M3X0.5X6MM PAN HEAD, TORX T10" (M3), instrument mounting hardware: "SCREW, M4 X 0.7 X 12 PAN HEAD, TORX T15" (M4) and rack attachment alternative: "SCREW, M5 X 16MM OVAL HEAD, PHILLIPS" (M5), plus 1 more in the table below.
Head and drive, as the sources state them: pan head and Torx T10, Torx T15 and Phillips drives.
4 of the 4 records are marked confirmed, drawn from 1 source (download.tek.com).
For reference, M3 is 3 mm across the threads at 0.5 mm pitch. The imperial size people confuse it with: #5-40 (3.18 mm) or #4-40 — neither interchanges with M3.
Tektronix RM5 rackmount kit (5/6 Series MSO) 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 |
|---|---|---|---|---|---|---|
| M3 | 6 mm | 0.5 mm | Pan head | Torx T10 | Kit hardware: "SCREW, MACHINE, M3X0.5X6MM PAN HEAD, TORX T10" | Confirmed |
| M4 | 12 mm | 0.7 mm | Pan head | Torx T15 | Instrument mounting hardware: "SCREW, M4 X 0.7 X 12 PAN HEAD, TORX T15" | Confirmed |
| M5 | 16 mm | 0.8 mm | not stated | Phillips | Rack attachment alternative: "SCREW, M5 X 16MM OVAL HEAD, PHILLIPS" | Confirmed |
| M6 | 16 mm | 1 mm | not stated | Phillips | Rack attachment: "SCREW, M6 X 16MM OVAL HEAD, PHILLIPS" | Confirmed |
Fitment records and sources
Kit hardware: "SCREW, MACHINE, M3X0.5X6MM PAN HEAD, TORX T10"
pitch 0.5 mm · tap 2.5 mm · clearance 3.4 mm · PH1 / Torx T10
Instrument mounting hardware: "SCREW, M4 X 0.7 X 12 PAN HEAD, TORX T15"
pitch 0.7 mm · tap 3.3 mm · clearance 4.5 mm · PH2 / Torx T20
Rack attachment alternative: "SCREW, M5 X 16MM OVAL HEAD, PHILLIPS"
pitch 0.8 mm · tap 4.2 mm · clearance 5.5 mm · PH2 / Torx T25
Rack attachment: "SCREW, M6 X 16MM OVAL HEAD, PHILLIPS"
pitch 1 mm · tap 5 mm · clearance 6.6 mm · PH3 / Torx T30
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 M3 screw measures about 3 mm with calipers (usually a hair under). This device also uses M4 / M5 / M6, so measure each screw rather than assuming they match.
- Pitch: 0.5 mm from one thread crest to the next (20 crests per centimetre). A thread pitch gauge or the pitch-gauge tool settles it in seconds.
- Length: for pan head screws, measure from under the head to the tip (countersunk heads are the exception: they are measured overall).
- The records span 6–16 mm, which means different positions take different lengths — match each hole to its own screw.
- Driver: the source names a Torx T10 drive. For comparison, standard M3 heads take PH1 (Phillips) or T10 (Torx), or a 2.5 mm hex key.
- Tightening: no device-specific torque is published in these records. The site's general figure for M3 is about 80-130 N·cm into metal threads and 35-60 N·cm into plastic bosses; snug it up and stop.
Common mix-ups with M3 / M4 / M5 / M6
- Label printer parts lists write M3*6 with an asterisk; that is still a true ISO M3 x 6mm machine screw.
- Some rackmount KVM switch kits pair M4x10 bracket-to-rack screws with M3.2x4.5 bracket-to-chassis screws (non-standard M3.2, not a true M3), so kits are not fully interchangeable with generic M3/M4 hardware.
- Stacking frame + rack tab + fender stay needs 18-20mm bolts, not the 12-16mm that come with a cage.
- Rack hole threads vary: 10-32 and 12-24 are still common in US racks alongside M6 - check the rail before buying.
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.
-
M3 x 6mm Replacement Screws for XLR Audio Connectors Phillips Wafer Head 50-Pack
$4.99 -
M3 x 6mm Phillips Wafer Head Carbon Steel Machine Screws for XLR Audio Connectors | 50-Pack (Black)
$4.99
-
M6 x 16mm Black Wafer Head Rack Screws for Rittal DK 7094.100 / 7094.110 / 7094.140 19-inch Rack – 20-Pack Replacement
$8.99Choose size -
M6 x 16mm Black Wafer Head Awning & Box Screws for Thule Awning 326 / 327 / 328, Conduit Box 317 & Xpedition 820 / 821 (50333) – 8-Pack Replacement
$6.99Choose size -
M3 x 6mm Phillips Wafer Head Screw for 3D Printer Frame Assembly - Single Replacement Black
$0.10 each · min. 50
-
M3 x 6mm Phillips Wafer Head Screw for Boutique Guitar Pedal Enclosure - Single Replacement Black
$0.10 each · min. 50
-
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
The same screw also fits
Devices whose records share a thread with Tektronix RM5 rackmount kit (5/6 Series MSO), closest length match first.
- RF Elements Twin Horn antenna bracket also M6 × 16 mm
- FJD 3D Excavator Guidance System (GNSS/IMU hardware) also M6 × 16 mm
- SMA Sunny Boy 3.0-US to 7.7-US inverter also M5 × 16 mm
- ICY DOCK MB344SP FLEX-FIT Quattro 5.25" bay enclosure also M3 × 6 mm
- Weidmueller ZB 35 busbar terminal blocks / DIN-rail busbar system also M6 × 16 mm
- Eurorack module to rack rail also M3 × 6 mm
- UniFi switch / access point wall bracket also M3 × 6 mm
- Takachi EM-series enclosure PCB bosses also M3 × 6 mm
Questions about Tektronix RM5 rackmount kit (5/6 Series MSO) screws
- What size screw does Tektronix RM5 rackmount kit (5/6 Series MSO) use?
- M3 × 6 mm for kit hardware: "SCREW, MACHINE, M3X0.5X6MM PAN HEAD, TORX T10"; M4 × 12 mm for instrument mounting hardware: "SCREW, M4 X 0.7 X 12 PAN HEAD, TORX T15"; M5 × 16 mm for rack attachment alternative: "SCREW, M5 X 16MM OVAL HEAD, PHILLIPS"; M6 × 16 mm for rack attachment: "SCREW, M6 X 16MM OVAL HEAD, PHILLIPS".
- How long are the screws in Tektronix RM5 rackmount kit (5/6 Series MSO)?
- The records range from 6 to 16 mm depending on the position, so match each screw to its own hole.
- What is the thread pitch of an M3 screw?
- 0.5 mm (coarse), which is the standard pitch for M3 machine screws; a 0.35 mm fine pitch exists but is uncommon. The tap drill is 2.5 mm and the normal clearance hole is 3.4 mm.
- What screwdriver do I need for Tektronix RM5 rackmount kit (5/6 Series MSO)?
- The source lists a Torx T10, Torx T15 and Phillips drive. Standard M3 heads otherwise take PH1 (Phillips) or T10 (Torx), or a 2.5 mm hex key.
- Can I use an imperial screw instead of M3?
- No. Imperial look-alike: #5-40 (3.18 mm) or #4-40 — neither interchanges with M3. Use a true M3 screw so it does not cross-thread or strip the hole.
- Where can I buy replacement screws for Tektronix RM5 rackmount kit (5/6 Series MSO)?
- TechSpareWarehouse (our own store) lists M3 x 6mm, which matches the length in the records above.