How long are the screws in Marine-grade set/grub screw (DIN 916, A4 stainless)?

The records range from 5 to 10 mm depending on the position, so match each screw to its own hole.

What is the thread pitch of an M5 screw?

0.8 mm (coarse), which is the standard pitch for M5 machine screws; a 0.5 mm fine pitch exists but is uncommon. The tap drill is 4.2 mm and the normal clearance hole is 5.5 mm.

What screwdriver do I need for Marine-grade set/grub screw (DIN 916, A4 stainless)?

The sources do not name the drive. For M5, Phillips heads normally take PH2 and Torx heads T25; socket heads take a 4 mm hex key.

Can I use an imperial screw instead of M5?

No. Imperial look-alike: #10-32 (4.83 mm) — the other common rack thread; check before mixing. Use a true M5 screw so it does not cross-thread or strip the hole.

Marine-grade set/grub screw (DIN 916, A4 stainless) screw size

M5 · 5 to 10 mm long

If you are replacing a screw on Marine-grade set/grub screw (DIN 916, A4 stainless), the thread is M5 in lengths from 5 to 10 mm.

Where it is used: M5 cup-point grub screws in A4 marine stainless for shipboard fittings and electronics brackets.

Head and drive, as the source states them: set screw (headless) head.

This entry is marked confirmed and comes from vital-parts.co.uk.

An M5 screw is 5 mm in diameter with a 0.8 mm pitch, tapped with a 4.2 mm drill; imperial look-alike: #10-32 (4.83 mm) — the other common rack thread; check before mixing.

Marine-grade set/grub screw (DIN 916, A4 stainless) 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
M5	5–10 mm	0.8 mm	Set screw (headless)	not stated	M5 cup-point grub screws in A4 marine stainless for shipboard fittings and electronics bracketsstainless	Confirmed

Fitment records and sources

M55-10mmconfirmed

M5 cup-point grub screws in A4 marine stainless for shipboard fittings and electronics brackets

pitch 0.8 mm · tap 4.2 mm · clearance 5.5 mm · PH2 / Torx T25

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 M5 screw measures about 5 mm with calipers (usually a hair under). If yours measures noticeably more or less, it is a different thread.
Pitch: 0.8 mm from one thread crest to the next (12.5 crests per centimetre). A thread pitch gauge or the pitch-gauge tool settles it in seconds.
Length: for set screw (headless) screws, measure from under the head to the tip (countersunk heads are the exception: they are measured overall).
The records span 5–10 mm, which means different positions take different lengths — match each hole to its own screw.
Driver: the source does not name the drive. Standard M5 heads take PH2 for Phillips and T25 for Torx, and a 4 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 M5 is about 4.0-6.0 N·m into metal threads and 1.5-2.5 N·m into plastic bosses; snug it up and stop.

Common mix-ups with M5

M5x0.8 is the de facto universal bike thread — confirm 0.8mm pitch before threading into carbon or alloy bosses.

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 Marine-grade set/grub screw (DIN 916, A4 stainless), closest length match first.

Rear-view / side mirror bracket also M5 × 10 mm
Rack and fender eyelets also M5 × 10 mm
Bicycle bottle cage bosses (Trek and industry standard) also M5 × 10 mm
E-scooter fenders & kickstands also M5 × 10 mm
EcoFlow Power Kits Power Hub wall/RV mounting hardware also M5 × 10 mm
Weidmueller BFSC busbar/DIN-rail screw accessory also M5 × 8 mm
Electrolux Professional compact rack-type dishwasher also M5 × 5–10 mm
Pioneer Head Units also M5 × 8 mm

Questions about Marine-grade set/grub screw (DIN 916, A4 stainless) screws

What size screw does Marine-grade set/grub screw (DIN 916, A4 stainless) use?: M5 × 5–10 mm for M5 cup-point grub screws in A4 marine stainless for shipboard fittings and electronics brackets.
How long are the screws in Marine-grade set/grub screw (DIN 916, A4 stainless)?: The records range from 5 to 10 mm depending on the position, so match each screw to its own hole.
What is the thread pitch of an M5 screw?: 0.8 mm (coarse), which is the standard pitch for M5 machine screws; a 0.5 mm fine pitch exists but is uncommon. The tap drill is 4.2 mm and the normal clearance hole is 5.5 mm.
What screwdriver do I need for Marine-grade set/grub screw (DIN 916, A4 stainless)?: The sources do not name the drive. For M5, Phillips heads normally take PH2 and Torx heads T25; socket heads take a 4 mm hex key.
Can I use an imperial screw instead of M5?: No. Imperial look-alike: #10-32 (4.83 mm) — the other common rack thread; check before mixing. Use a true M5 screw so it does not cross-thread or strip the hole.

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