What size screw does Dental handpiece head use?

M1.6 × 3–6 mm for secures the rotating head on a dental drill.

How long are the screws in Dental handpiece head?

The records range from 3 to 6 mm depending on the position, so match each screw to its own hole.

What is the thread pitch of an M1.6 screw?

0.35 mm (coarse), which is the standard pitch for M1.6 machine screws; a 0.2 mm fine pitch exists but is uncommon. The tap drill is 1.25 mm and the normal clearance hole is 1.8 mm.

What screwdriver do I need for Dental handpiece head?

The sources do not name the drive. For M1.6, Phillips heads normally take PH00 and Torx heads T4–T5; socket heads take a 1.5 mm hex key.

Can I use an imperial screw instead of M1.6?

No. Imperial look-alike: #1-72 UNF (1.85 mm) is larger; there is no true imperial equivalent. Use a true M1.6 screw so it does not cross-thread or strip the hole.

Where can I buy replacement screws for Dental handpiece head?

TechSpareWarehouse (our own store) lists M1.6 x 3mm and M1.6 x 4mm, which match lengths in the records above.

Dental handpiece head screw size

M1.6 · 3 to 6 mm long

If you are replacing a screw on Dental handpiece head, the thread is M1.6 in lengths from 3 to 6 mm.

Where it is used: secures the rotating head on a dental drill.

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

M1.6 means a 1.6 mm nominal diameter with a 0.35 mm thread pitch. Imperial look-alike: #1-72 UNF (1.85 mm) is larger; there is no true imperial equivalent.

Dental handpiece head 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
M1.6	3–6 mm	0.35 mm	not stated	not stated	secures the rotating head on a dental drill	Reported

Fitment records and sources

M1.63-6mmreported

secures the rotating head on a dental drill

pitch 0.35 mm · tap 1.25 mm · clearance 1.8 mm · PH00 / Torx T4–T5

Source

How to check the screw before you buy

For medical and lab equipment, use the manufacturer's replacement part where one is specified; the thread size here helps identify it, not certify it.
Diameter: across the threads an M1.6 screw measures about 1.6 mm with calipers (usually a hair under). If yours measures noticeably more or less, it is a different thread.
Pitch: 0.35 mm from one thread crest to the next (28.57 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 records span 3–6 mm, which means different positions take different lengths — match each hole to its own screw.
Driver: the source does not name the drive. Standard M1.6 heads take PH00 for Phillips and T4–T5 for Torx, and a 1.5 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 M1.6 is about 12-20 N·cm into metal threads and 6-10 N·cm into plastic bosses; snug it up and stop.

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 Dental handpiece head, closest length match first.

EM-Tec SEM sample holders also M1.6 × 4–6 mm
Olympus 145-290 Series Endoscopes also M1.6 × 3 mm
Eyeglass hinge screw (heavier frames) also M1.6 × 3–5 mm
Dell G7 17 7700 also M1.6 × 5 mm
HP ProBook x360 11 G2 EE also M1.6 × 3.5 mm
Dell Precision 5550 also M1.6 × 3 mm
Lenovo ThinkPad X200 Tablet screw kit also M1.6 × 6 mm
Dell Precision 5490 also M1.6 × 3 mm

Questions about Dental handpiece head screws

What size screw does Dental handpiece head use?: M1.6 × 3–6 mm for secures the rotating head on a dental drill.
How long are the screws in Dental handpiece head?: The records range from 3 to 6 mm depending on the position, so match each screw to its own hole.
What is the thread pitch of an M1.6 screw?: 0.35 mm (coarse), which is the standard pitch for M1.6 machine screws; a 0.2 mm fine pitch exists but is uncommon. The tap drill is 1.25 mm and the normal clearance hole is 1.8 mm.
What screwdriver do I need for Dental handpiece head?: The sources do not name the drive. For M1.6, Phillips heads normally take PH00 and Torx heads T4–T5; socket heads take a 1.5 mm hex key.
Can I use an imperial screw instead of M1.6?: No. Imperial look-alike: #1-72 UNF (1.85 mm) is larger; there is no true imperial equivalent. Use a true M1.6 screw so it does not cross-thread or strip the hole.
Where can I buy replacement screws for Dental handpiece head?: TechSpareWarehouse (our own store) lists M1.6 x 3mm and M1.6 x 4mm, which match lengths in the records above.

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