What size screw does Rack mounting screw and cage nut set (NRS-M1616-N-50) use?

M6 × 16 mm for M6x16 rack screw set.

How long are the screws in Rack mounting screw and cage nut set (NRS-M1616-N-50)?

The record gives 16 mm. Measure the original from under the head (overall for a countersunk head) to confirm before ordering.

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 Rack mounting screw and cage nut set (NRS-M1616-N-50)?

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.

Rack mounting screw and cage nut set (NRS-M1616-N-50) screw size

M6 · 16 mm long

If you are replacing a screw on Rack mounting screw and cage nut set (NRS-M1616-N-50), the thread is M6, 16 mm long.

It is listed for M6x16 rack screw set.

This entry is marked confirmed and comes from files.riel.hu.

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.

Rack mounting screw and cage nut set (NRS-M1616-N-50) 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	16 mm	1 mm	not stated	not stated	M6x16 rack screw set	Confirmed

Fitment records and sources

M616mmconfirmed

M6x16 rack screw set

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

Source

How to check the screw before you buy

Board standoffs and enclosure bosses set the usable length: the screw should clamp the board without bottoming in the standoff.
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.
The record states 16 mm. Going longer risks bottoming out or touching parts behind the hole; going shorter loses thread engagement.
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 racks are not all metric: 10-32 and 12-24 UNC are still the norm in North America, with M6 the metric/square-hole cage-nut option.
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.

Pitch gauge · Screw size finder · Torque guide

Buy these screws at TechSpare Warehouse

In stock and shipped from South Carolina. Our black screws are Phillips wafer head (low profile); match the head style and length to the original before you order.

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The same screw also fits

Devices whose records share a thread with Rack mounting screw and cage nut set (NRS-M1616-N-50), closest length match first.

19-inch server racks also M6 × 16 mm
Ninebot Max G30 rear fender also M6 × 16 mm
Xiaomi M365 / Ninebot brake caliper also M6 × 16 mm
Thule Bike Racks (General Replacement) also M6 × 16 mm
Wurth Elektronik WA-SSTIE steel spacer stud also M6 × 16 mm
Power-One 15kW/25kW wind interface also M6 × 16 mm
19-inch rack cage nut and panel screw also M6 × 16 mm
Large soundbars & subwoofers also M6 × 16 mm

Questions about Rack mounting screw and cage nut set (NRS-M1616-N-50) screws

What size screw does Rack mounting screw and cage nut set (NRS-M1616-N-50) use?: M6 × 16 mm for M6x16 rack screw set.
How long are the screws in Rack mounting screw and cage nut set (NRS-M1616-N-50)?: The record gives 16 mm. Measure the original from under the head (overall for a countersunk head) to confirm before ordering.
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 Rack mounting screw and cage nut set (NRS-M1616-N-50)?: 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.

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