How long are the screws in Bicycle SPD-SL / SPD cleat fixing bolts?

The records range from 8 to 13.5 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 Bicycle SPD-SL / SPD cleat fixing bolts?

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.

Bicycle SPD-SL / SPD cleat fixing bolts screw size

M5 · 8 to 13.5 mm long

Our records put Bicycle SPD-SL / SPD cleat fixing bolts on M5 screws in lengths from 8 to 13.5 mm.

The record covers bike-components states Shimano SPD-SL cleat bolts (SM-SH10/11/12) 'all have an M5 thread', available 8/10/13.5mm lengths; Amazon listing for Shimano PD-M737 SPD cleat bolt confirms 'Thread Size: M5'.

This entry is marked confirmed and comes from bike-components.de.

For reference, M5 is 5 mm across the threads at 0.8 mm pitch. The imperial size people confuse it with: #10-32 (4.83 mm) — the other common rack thread; check before mixing.

Bicycle SPD-SL / SPD cleat fixing bolts 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	8–13.5 mm	0.8 mm	not stated	not stated	bike-components states Shimano SPD-SL cleat bolts (SM-SH10/11/12) 'all have an M5 thread', available 8/10/13.5mm lengths; Amazon listing for Shimano PD-M737 SPD cleat bolt confirms 'Thread Size: M5'	Confirmed

Fitment records and sources

M58mm, 10mm, 11.5mm, 13.5mmconfirmed

bike-components states Shimano SPD-SL cleat bolts (SM-SH10/11/12) 'all have an M5 thread', available 8/10/13.5mm lengths; Amazon listing for Shimano PD-M737 SPD cleat bolt confirms 'Thread Size: M5'

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

Source

How to check the screw before you buy

Keep material and finish the same as the original (often stainless) on equipment that is cleaned or sterilised.
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: measure from under the head to the tip for pan, button, wafer and cap heads; countersunk (flat) heads are measured overall.
The records span 8–13.5 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

Shimano SPD cleat bolts are widely sold as M5 x 8, but Shimano's own dealer manuals don't state the thread — check the old bolt.
Stacking frame + rack tab + fender stay needs 18-20mm bolts, not the 12-16mm that come with a cage.

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 Bicycle SPD-SL / SPD cleat fixing bolts, closest length match first.

Takara Belmont PRO III 047 dental chair also M5 × 12 mm
Ottobock 17AD1 ankle joint screw (heavier plastic) also M5 × 8 mm
SISAB ECO.50+/T laboratory centrifuge also M5 × 8–10 mm
Prosthetic foot / ankle attachment also M5 × 12–13.5 mm
Permobil power wheelchairs also M5 × 8 mm
Bicycle water bottle cage mounts also M5 × 12–13.5 mm
Faucet handle set screws also M5 × 8–10 mm
Prusa frame-to-extrusion joints also M5 × 12–13.5 mm

Questions about Bicycle SPD-SL / SPD cleat fixing bolts screws

What size screw does Bicycle SPD-SL / SPD cleat fixing bolts use?: M5 × 8–13.5 mm for bike-components states Shimano SPD-SL cleat bolts (SM-SH10/11/12) 'all have an M5 thread', available 8/10/13.5mm lengths; Amazon listing for Shimano PD-M737 SPD cleat bolt confirms 'Thread Size: M5'.
How long are the screws in Bicycle SPD-SL / SPD cleat fixing bolts?: The records range from 8 to 13.5 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 Bicycle SPD-SL / SPD cleat fixing bolts?: 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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