Thorlabs LB1C/M light-tight blank cover plate for 60mm cage cube screw size
M6 · length not stated in the sources
Our records put Thorlabs LB1C/M light-tight blank cover plate for 60mm cage cube on M6 screws. None of the sources we found gives an exact length, so measure the original before you order.
Where it is used: M6 tap for cage cube assembly.
This entry is marked confirmed and comes from govolition.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.
Thorlabs LB1C/M light-tight blank cover plate for 60mm cage cube 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 | M6 tap for cage cube assembly | Confirmed |
Fitment records and sources
M6 tap for cage cube assembly
pitch 1 mm · tap 5 mm · clearance 6.6 mm · PH3 / Torx T30
How to check the screw before you buy
- Keep material and finish the same as the original (often stainless) on equipment that is cleaned or sterilised.
- 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
- Tapped 19in rack rails are traditionally 10-32 or 12-24 imperial; M6 is the cage-nut convention for square-hole rails, not an EIA requirement.
- Rack rails come in M6, M5 and imperial 10-32 — check which cage nuts your rack uses before buying a bag of screws.
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Questions about Thorlabs LB1C/M light-tight blank cover plate for 60mm cage cube screws
- What size screw does Thorlabs LB1C/M light-tight blank cover plate for 60mm cage cube use?
- M6 for M6 tap for cage cube assembly.
- How long are the screws in Thorlabs LB1C/M light-tight blank cover plate for 60mm cage cube?
- 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 Thorlabs LB1C/M light-tight blank cover plate for 60mm cage cube?
- 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.