M5.5 is a metric thread with an 5.5 mm nominal diameter and a coarse pitch of 0.9 mm (ISO 261).
In stock now: 98 lines; covering Self-Tapping & Drilling Screws (96), Self-Tapping Screws (49), Self-Drilling Screws (47), Phillips Pan Head Self-Drilling (19), YB845- Guangdong Standard (18); priced from $0.0188 per piece. Every line is sold by the piece — one piece is a valid order — and volume discounts apply automatically from 5%.
Related values on the same axis
1/2
1/4
2#
10#
3/16
3/8
4#
5/16
5/8
6#
Product families covered
Self-Tapping & Drilling Screws 96
Self-Tapping Screws 49
Self-Drilling Screws 47
Phillips Pan Head Self-Drilling 19
YB845- Guangdong Standard 18
Phillips Countersunk Self-Drilling 18
Truss Head Self-Tapping 17
YB846- Guangdong Standard 14
Hex Washer Head Self-Drilling Screws 10
Tools 2
HSS Round Turning Tools 2
Other Hardware 2
Frequently asked
What thread pitch and spanner size does M5.5 use?
A standard M5.5 metric coarse thread has a pitch of 0.9 mm (ISO 261). We also stock fine-pitch and imperial equivalents — ask for the size list.
How much do M5.5 fasteners cost?
Prices in our catalogue for M5.5 run from $0.0188 to $2.1220 per piece, depending on diameter, length and material. There is no minimum order, and volume discounts apply automatically from 5%.
Is there a minimum order quantity for M5.5?
No. Every line is sold by the piece, so you can order a single piece to check the fit and the finish before committing to a production quantity. Volume discounts start at 5% and step down as the quantity rises.
What do you stock in M5.5?
M5.5 Bolts, Screws, Nuts & Washers currently covers 98 lines across Self-Tapping & Drilling Screws, Self-Tapping Screws, Self-Drilling Screws, Phillips Pan Head Self-Drilling, YB845- Guangdong Standard, Phillips Countersunk Self-Drilling. The full list of sizes, materials and finishes on this page is live — use the filters at the top to narrow it down.
How quickly do you ship M5.5 fasteners, and can you send them to the EU or Russia?
In-stock lines leave our Foshan warehouse within 24–48 hours. We ship worldwide, including the EU and Russia. For the EU we are appointing a responsible person under Regulation (EU) 2023/988 (GPSR); for EAEU orders the conformity documents are handled with the importing party, who is the applicant of record. We can supply an EN 10204 3.1 mill test certificate, a full technical specification and a packing list with weights on request.