Product Description
DIN 933 hexagon head screw, M20 x 55, plus, vlh, Article number 9331020055GEO321A. Property class / material: steel 10.9, surface finish zinc flake, silver. Hexagon Head Screw manufactured to DIN 933 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 933
- Type
- Hexagon Head Screw
- Property class / grade
- 10.9
- Class (detailed)
- 10.9
- Thread type
- M
- Thread diameter
- 20 mm
- Pitch
- 2.5 mm
- Thread pitch class
- Coarse
- Thread direction
- Right
- Length
- 55 mm
- Thread length
- 55 mm
- Threading
- Fully Threaded
- Fully threaded
- Yes
- Head type
- Hexagon Head
- Drive type
- Hex Drive
- Key width (across flats)
- 30 mm
- Head height
- 12.5 mm
- Surface treatment
- GEOMET 321A
- Surface treatment code
- ZINCFLAKE SILVER
- Length
- 55 mm
- Thread standard
- ISO metric (M)
- Article number
- 9331020055GEO321A
- Category
- Bolts and Screws / Hexagon Head Screws
Standards & Compliance
- Standard
- DIN 933
- Size / Series
- M20 x 55
- Material
- Steel 10.9
- Thread Standard
- ISO metric (M)
- HS Code
- 731815
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 9331020055GEO321A?
- 9331020055GEO321A 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 9331020055GEO321A.
- What is the HS code for 9331020055GEO321A?
- The customs tariff (HS) code for 9331020055GEO321A is 731815.
- Who manufactures 9331020055GEO321A?
- 9331020055GEO321A is a Bufab product in the C-Parts range.
- Is a datasheet available for 9331020055GEO321A?
- Yes — the 9331020055GEO321A datasheet can be viewed and downloaded on this page.
- What is the minimum order quantity for 9331020055GEO321A?
- The minimum order quantity is 1.
- Is 9331020055GEO321A available?
- Yes — 9331020055GEO321A 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).