Product Description
DIN 439-B hexagon nut (form B), M64 x 4, Article number 439644001. Property class / material: steel, surface finish zinc plated. Hexagon Nut manufactured to DIN 439 with ISO metric (M) thread, fine 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 439
- Standard description
- B
- Property class / grade
- STEEL
- Class (detailed)
- STEEL
- Thread type
- M
- Thread diameter
- 64 mm
- Pitch
- 4 mm
- Thread pitch class
- Fine
- Thread direction
- Right
- Threading
- Fully Threaded
- Surface treatment
- Zinc Bright Passivation Fe/Zn P1 (ZPL 3+)
- Surface treatment code
- ZPL
- Nut thickness
- 30 mm
- Width across flats
- 90 mm
- Thread standard
- ISO metric (M)
- Article number
- 439644001
- Category
- Nuts / Hexagon Thin Nuts
Standards & Compliance
- Standard
- DIN 439
- Size / Series
- M64 x 4
- Material
- Steel
- Thread Standard
- ISO metric (M)
- HS Code
- 731816
Product Documentation
More from Bufab
Bufab
DIN 439-B Hexagon Nut, Steel, M64, Plain
43964600
Bufab
DIN 439-B Hexagon Nut, Steel class 4, M20, Zinc Plated (4398201PT2)
Bufab
DIN 439-B Hexagon Nut, Stainless A2-35, M2 (439A2002)
Bufab
DIN 439-B Hexagon Nut, Stainless A2-35, M1.6
439A2016
Bufab
DIN 439-B Hexagon Nut, Stainless A2-35, M2 (439A202)
Bufab
DIN 439-B Hexagon Nut, Stainless A2-35, M2.5
439A2025
Bufab
DIN 439-B Hexagon Nut, Stainless A2-35, M3 (439A203)
Bufab
DIN 439-B Hexagon Nut, Stainless A2-35, M3.5
439A2035
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 439644001?
- 439644001 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 439644001.
- What is the HS code for 439644001?
- The customs tariff (HS) code for 439644001 is 731816.
- Who manufactures 439644001?
- 439644001 is a Bufab product in the C-Parts range.
- Is a datasheet available for 439644001?
- Yes — the 439644001 datasheet can be viewed and downloaded on this page.
- What is the minimum order quantity for 439644001?
- The minimum order quantity is 1.
- Is 439644001 available?
- Yes — 439644001 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).