HDRiG ARRI-standard rosette (31.8mm) screw size
M6 · length not stated in the sources
HDRiG ARRI-standard rosette (31.8mm) takes M6 metric screws. None of the sources we found gives an exact length, so measure the original before you order.
It is listed for centre hole is M6 threaded, surrounding holes M3.
This entry is marked confirmed and comes from hdrig.com.
M6 means a 6 mm nominal diameter with a 1 mm thread pitch. Imperial look-alike: 1/4in-20 (6.35 mm) — the tripod/camera thread; visibly larger than M6.
HDRiG ARRI-standard rosette (31.8mm) 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 |
|---|---|---|---|---|---|---|
| M6 | not stated | 1 mm | not stated | not stated | Centre hole is M6 threaded, surrounding holes M3 | Confirmed |
Fitment records and sources
Centre hole is M6 threaded, surrounding holes M3
pitch 1 mm · tap 5 mm · clearance 6.6 mm · PH3 / Torx T30
How to check the screw before you buy
- If several screws hold the same part, check that they are all the same length before assuming they are.
- Diameter: across the threads an M6 screw measures about 6 mm with calipers (usually a hair under). If yours measures noticeably more or less, it is a different thread.
- Pitch: 1 mm from one thread crest to the next (10 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 M6 heads take PH3 for Phillips and T30 for Torx, and a 5 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 M6 is about 7-10 N·m into metal threads and 2.5-4.0 N·m into plastic bosses; snug it up and stop.
Common mix-ups with M6
- 19-inch rack rails use three incompatible thread standards that share the same square hole: M6, 10-32 UNF and 12-24 UNC. Cage nuts for all of them look identical in a parts bin.
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Devices whose records share a thread with HDRiG ARRI-standard rosette (31.8mm), closest length match first.
- Speck 95-IX / 95-X commercial pool pump also M6
- Beckhoff AMP8x4x distributed servo drive flange mounting also M6
- ISO-KF vacuum flange claw clamps (DN10-DN50) also M6
- GP-SR1-PC200 LiFePO4 battery DIY kit also M6
- DIN 912 socket-head cap screw also M6
- DIN 965 / ISO 7046 countersunk Phillips screw also M6
- Cymbal stand top wing nut also M6
- Gimatic MFI-A374-A/B mounting flange for Mechatronics grippers on UR robots also M6
Questions about HDRiG ARRI-standard rosette (31.8mm) screws
- What size screw does HDRiG ARRI-standard rosette (31.8mm) use?
- M6 for centre hole is M6 threaded, surrounding holes M3.
- How long are the screws in HDRiG ARRI-standard rosette (31.8mm)?
- 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 M6 screw?
- 1 mm (coarse), which is the standard pitch for M6 machine screws; a 0.75 mm fine pitch exists but is uncommon. The tap drill is 5 mm and the normal clearance hole is 6.6 mm.
- What screwdriver do I need for HDRiG ARRI-standard rosette (31.8mm)?
- The sources do not name the drive. For M6, Phillips heads normally take PH3 and Torx heads T30; socket heads take a 5 mm hex key.
- Can I use an imperial screw instead of M6?
- No. Imperial look-alike: 1/4in-20 (6.35 mm) — the tripod/camera thread; visibly larger than M6. Use a true M6 screw so it does not cross-thread or strip the hole.