Product Description
DIN 6331 flange nut, M20, Article number 63311020. Property class / material: steel class 10, surface finish plain. Flange Nut manufactured to DIN 6331 with ISO metric (M) thread, coarse pitch, fully threaded. Standard parts to the same standard, property class, dimensions and surface finish are interchangeable between manufacturers; confirm the controlling standard revision, any class-society or application approval, and the mating thread before substitution.
Technical Specifications
- Standard
- DIN 6331
- Property class / grade
- CL.10
- Class (detailed)
- CL.10
- Thread type
- M
- Thread diameter
- 20 mm
- Pitch
- 2.5 mm
- Thread pitch class
- Coarse
- Thread direction
- Right
- Threading
- Fully Threaded
- Key width (across flats)
- 30 mm
- Surface treatment
- Plain (no plating)
- Surface treatment code
- PLAIN
- Nut Flange Diameter
- 37 mm
- Nut Flange Thickness
- 6 mm
- Nut height
- 30 mm
- Thread standard
- ISO metric (M)
- Article number
- 63311020
- Category
- Nuts / Hexagon Nuts with Flange
Standards & Compliance
- Standard
- DIN 6331
- Size / Series
- M20
- Material
- Steel class 10
- Thread Standard
- ISO metric (M)
- HS Code
- 731816
Product Documentation
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Technical guides
Catalogue entry last verified: 2026-09-30. A manufacturer datasheet is attached to this entry — confirm application-critical values against it.
Frequently asked questions
- Where can I buy 63311020?
- 63311020 can be ordered from cballast.com as a Bufab catalogue item: request a quotation on this page or email sales@cballast.com, and the order ships worldwide.
- What is the manufacturer part number for this Bufab product?
- The manufacturer part number is 63311020.
- What is the HS code for 63311020?
- The customs tariff (HS) code for 63311020 is 731816.
- Who manufactures 63311020?
- 63311020 is a Bufab product in the C-Parts range.
- Is a datasheet available for 63311020?
- Yes — the 63311020 datasheet can be viewed and downloaded on this page.
- What is the minimum order quantity for 63311020?
- The minimum order quantity is 1.
- Is 63311020 available?
- Yes — 63311020 is available to order: fulfilment is from supplier stock in cBallast's European network, dispatched directly from the warehouse to the customer, with the exact lead time stated in the quotation (reply within 24 hours).