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Bianchi / Nuova Simonelli / Rheavendors / Saeco vending machine screw size

M4 · 16 mm long

If you are replacing a screw on Bianchi / Nuova Simonelli / Rheavendors / Saeco vending machine, the thread is M4, 16 mm long.

It is listed for M4 x 16mm cylinder-head screw, part 5017690, used across the vending range.

This entry is marked reported and comes from yourspares.co.uk.

For reference, M4 is 4 mm across the threads at 0.7 mm pitch. The imperial size people confuse it with: #8-32 (4.17 mm) — the standard US PC/rack screw, close but not the same.

Bianchi / Nuova Simonelli / Rheavendors / Saeco vending machine 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
M416 mm0.7 mmnot statednot statedM4 x 16mm cylinder-head screw, part 5017690, used across the vending rangeReported

Fitment records and sources

M416mmreported

M4 x 16mm cylinder-head screw, part 5017690, used across the vending range

pitch 0.7 mm · tap 3.3 mm · clearance 4.5 mm · PH2 / Torx T20

How to check the screw before you buy

  1. Industrial parts lists usually give the full callout (thread, length, head, grade); match all four, not just the thread.
  2. Diameter: across the threads an M4 screw measures about 4 mm with calipers (usually a hair under). If yours measures noticeably more or less, it is a different thread.
  3. Pitch: 0.7 mm from one thread crest to the next (14.29 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. The record states 16 mm. Going longer risks bottoming out or touching parts behind the hole; going shorter loses thread engagement.
  6. Driver: the source does not name the drive. Standard M4 heads take PH2 for Phillips and T20 for Torx, and a 3 mm hex key for socket heads; a bit that fits loosely will cam out and strip the head.
  7. Tightening: no device-specific torque is published in these records. The site's general figure for M4 is about 2.0-3.0 N·m into metal threads and 0.8-1.4 N·m into plastic bosses; snug it up and stop.

Common mix-ups with M4

  • Smart doorbell and lock kits bundle metric machine screws with imperial wood screws in the same bag; the metric ones are rarely labelled.
  • Bopla SHR-Z boss screws and Hammond 1591XXF screws look metric but are self-tapping/imperial — don't substitute a machine screw into those 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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Devices whose records share a thread with Bianchi / Nuova Simonelli / Rheavendors / Saeco vending machine, closest length match first.

Questions about Bianchi / Nuova Simonelli / Rheavendors / Saeco vending machine screws

What size screw does Bianchi / Nuova Simonelli / Rheavendors / Saeco vending machine use?
M4 × 16 mm for M4 x 16mm cylinder-head screw, part 5017690, used across the vending range.
How long are the screws in Bianchi / Nuova Simonelli / Rheavendors / Saeco vending machine?
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 M4 screw?
0.7 mm (coarse), which is the standard pitch for M4 machine screws; a 0.5 mm fine pitch exists but is uncommon. The tap drill is 3.3 mm and the normal clearance hole is 4.5 mm.
What screwdriver do I need for Bianchi / Nuova Simonelli / Rheavendors / Saeco vending machine?
The sources do not name the drive. For M4, Phillips heads normally take PH2 and Torx heads T20; socket heads take a 3 mm hex key.
Can I use an imperial screw instead of M4?
No. Imperial look-alike: #8-32 (4.17 mm) — the standard US PC/rack screw, close but not the same. Use a true M4 screw so it does not cross-thread or strip the hole.