SmallRig 4261 cage (Nikon Z f) screw size
M2.5 · length not stated in the sources
Our records put SmallRig 4261 cage (Nikon Z f) on M2.5 screws. None of the sources we found gives an exact length, so measure the original before you order.
It is listed for secondary anti-twist locking screw.
This entry is marked confirmed and comes from smallrigreseller.com.
M2.5 means a 2.5 mm nominal diameter with a 0.45 mm thread pitch. Imperial look-alike: #3-48 / #4-40 (2.51 / 2.84 mm) — #4-40 is the common US stand-in and it will NOT thread in.
SmallRig 4261 cage (Nikon Z f) 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 |
|---|---|---|---|---|---|---|
| M2.5 | not stated | 0.45 mm | not stated | not stated | secondary anti-twist locking screw | Confirmed |
Fitment records and sources
secondary anti-twist locking screw
pitch 0.45 mm · tap 2.05 mm · clearance 2.9 mm · PH1 / Torx T8
How to check the screw before you buy
- Do not confuse metric mounting screws with the 1/4-20 or 3/8-16 tripod threads that cameras and clamps also carry.
- Diameter: across the threads an M2.5 screw measures about 2.5 mm with calipers (usually a hair under). If yours measures noticeably more or less, it is a different thread.
- Pitch: 0.45 mm from one thread crest to the next (22.22 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.
- Driver: the source does not name the drive. Standard M2.5 heads take PH1 for Phillips and T8 for Torx, and a 2 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 M2.5 is about 45-70 N·cm into metal threads and 20-35 N·cm into plastic bosses; snug it up and stop.
Common mix-ups with M2.5
- Projector optics and fan screws often step down to M2.5 while the outer covers use M3 - do not reuse cover screws inside the light engine.
- Nylon-coated M2.5 screws (ThinkPad Edge) are thread-locking; plain replacements work loose over time.
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Browse all 278 in Cameras & Optics →The same screw also fits
Devices whose records share a thread with SmallRig 4261 cage (Nikon Z f), closest length match first.
- SmallRig camera cages and rigs also M2.5
- SmallRig Cold Shoe Mount (2-pack, product 2060) also M2.5
- Camera hot shoe base plate also M2.5
- Camera lens mount flange also M2.5
- Wooden Camera bolt-on accessory plate adapter also M2.5
- Tripod head quick-release plate lock also M2.5
- SmallRig CCP2646 cage (Lumix GH5/GH5 II/GH5S) also M2.5
- SmallRig CCP2525 cage (Panasonic S5) also M2.5
Questions about SmallRig 4261 cage (Nikon Z f) screws
- What size screw does SmallRig 4261 cage (Nikon Z f) use?
- M2.5 for secondary anti-twist locking screw.
- How long are the screws in SmallRig 4261 cage (Nikon Z f)?
- None of the sources states a length. Remove one screw and measure it from under the head to the tip (overall for a countersunk head).
- What is the thread pitch of an M2.5 screw?
- 0.45 mm (coarse), which is the standard pitch for M2.5 machine screws; a 0.35 mm fine pitch exists but is uncommon. The tap drill is 2.05 mm and the normal clearance hole is 2.9 mm.
- What screwdriver do I need for SmallRig 4261 cage (Nikon Z f)?
- The sources do not name the drive. For M2.5, Phillips heads normally take PH1 and Torx heads T8; socket heads take a 2 mm hex key.
- Can I use an imperial screw instead of M2.5?
- No. Imperial look-alike: #3-48 / #4-40 (2.51 / 2.84 mm) — #4-40 is the common US stand-in and it will NOT thread in. Use a true M2.5 screw so it does not cross-thread or strip the hole.