Hygienic USIT sanitary cap nut with collar screw size
M6 · length not stated in the sources
Our records put Hygienic USIT sanitary cap nut with collar on M6 screws. None of the sources we found gives an exact length, so measure the original before you order.
Where it is used: polished Ra<0.8um cleanable surface.
This entry is marked confirmed and comes from wdscomponents.com.
For reference, M6 is 6 mm across the threads at 1 mm pitch. The imperial size people confuse it with: 1/4in-20 (6.35 mm) — the tripod/camera thread; visibly larger than M6.
Hygienic USIT sanitary cap nut with collar 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 | Polished Ra<0.8um cleanable surface | Confirmed |
Fitment records and sources
Polished Ra<0.8um cleanable surface
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
- Hygienic/3-A food-industry M6 screws are a distinct fastener class (with integrated sealing gasket/washer) from standard DIN 912 M6 socket-head screws; substituting a plain DIN 912 M6 screw on food/sanitary equipment breaks the hygienic seal even though the thread is nominally the same size.
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Devices whose records share a thread with Hygienic USIT sanitary cap nut with collar, closest length match first.
- INON Light Adapter for GoPro (dive housing accessory) also M6
- Bosch Rexroth T-slot nut, 30 mm strut, groove 8 mm also M6
- Furniture leveling foot also M6
- USD inline skate frame mounting bolt also M6
- Bosch Rexroth T-slot nut, groove 10 mm also M6
- Tecno kart general fasteners also M6
- Eaton 93PX UPS/EBM/MBP (15-20 kVA) also M6
- Really Right Stuff B2-Pro-II Arca-Swiss clamp also M6
Questions about Hygienic USIT sanitary cap nut with collar screws
- What size screw does Hygienic USIT sanitary cap nut with collar use?
- M6 for polished Ra<0.8um cleanable surface.
- How long are the screws in Hygienic USIT sanitary cap nut with collar?
- 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 Hygienic USIT sanitary cap nut with collar?
- 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.