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LONGi Solar PV module installation (mounting hardware) screw size

M6 · length not stated in the sources

If you are replacing a screw on LONGi Solar PV module installation (mounting hardware), the thread is M6. None of the sources we found gives an exact length, so measure the original before you order.

It is listed for frame mounting bolts referenced in module installation manual for rail/clamp fastening.

This entry is marked reported and comes from solartraders.com.

An M6 screw is 6 mm in diameter with a 1 mm pitch, tapped with a 5 mm drill; imperial look-alike: 1/4in-20 (6.35 mm) — the tripod/camera thread; visibly larger than M6.

LONGi Solar PV module installation (mounting hardware) 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.

ThreadLengthPitchHeadDriveWhere it goesStatus
M6not stated1 mmnot statednot statedFrame mounting bolts referenced in module installation manual for rail/clamp fasteningReported

Fitment records and sources

M6N/Areported

Frame mounting bolts referenced in module installation manual for rail/clamp fastening

pitch 1 mm · tap 5 mm · clearance 6.6 mm · PH3 / Torx T30

How to check the screw before you buy

  1. On vehicles and bikes, use the original strength class and finish; outdoor hardware is usually stainless or coated to resist corrosion.
  2. 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.
  3. 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.
  4. Length: measure from under the head to the tip for pan, button, wafer and cap heads; countersunk (flat) heads are measured overall.
  5. 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.
  6. 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

  • Snowmobile/ATV/PWC switch and gauge hardware is mostly SAE inch; metric appears mainly on M6+ engine and driveline bolts.
  • No screw length given, only torque — measure existing hardware before replacing.

Pitch gauge · Screw size finder · Torque guide

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The same screw also fits

Devices whose records share a thread with LONGi Solar PV module installation (mounting hardware), closest length match first.

Questions about LONGi Solar PV module installation (mounting hardware) screws

What size screw does LONGi Solar PV module installation (mounting hardware) use?
M6 for frame mounting bolts referenced in module installation manual for rail/clamp fastening.
How long are the screws in LONGi Solar PV module installation (mounting hardware)?
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 LONGi Solar PV module installation (mounting hardware)?
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.