
Product Description
ISO 4033 hexagon nut, M30, Article number 4033830. Property class / material: steel class 8, surface finish plain. Hexagon Nut manufactured to ISO 4033 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
- ISO 4033
- Property class / grade
- CL.8
- Class (detailed)
- CL.8
- Thread type
- M
- Thread diameter
- 30 mm
- Pitch
- 3.5 mm
- Thread pitch class
- Coarse
- Thread direction
- Right
- Threading
- Fully Threaded
- Key width (across flats)
- 46 mm
- Surface treatment
- Plain (no plating)
- Surface treatment code
- PLAIN
- Nut thickness
- 28.6 mm
- Thread standard
- ISO metric (M)
- Article number
- 4033830
- Category
- Nuts / Hexagon Nuts
Standards & Compliance
- Standard
- ISO 4033
- Size / Series
- M30
- Material
- Steel class 8
- Thread Standard
- ISO metric (M)
- HS Code
- 731816
Product Documentation
More from Bufab

Bufab
ISO 4033 Hexagon Nut, Stainless A2-70, M22
4033A222

Bufab
ISO 4033 Hexagon Nut, Stainless A4-70, M6
4033A4006070

Bufab
ISO 4035 Hexagon Nut, Steel class 4, M3, Zinc Plated
403500301

Bufab
ISO 4035 Hexagon Nut, Steel class 4, M3, Zinc Plated, Yellow Passivated
403500303

Bufab
ISO 4035 Hexagon Nut, Steel class 4, M4, Zinc Plated
403500401

Bufab
ISO 4035 Hexagon Nut, Steel class 4, M4, Zinc Plated, Yellow Passivated
4035004033-5

Bufab
ISO 4035 Hexagon Nut, Steel class 4, M4, SST 120 h, Zinc Plated, Yellow Passivated
4035004035SST120

Bufab
ISO 4035 Hexagon Nut, Steel class 4, M5, Plain (40350050)
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 4033830?
- 4033830 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 4033830.
- What is the HS code for 4033830?
- The customs tariff (HS) code for 4033830 is 731816.
- Who manufactures 4033830?
- 4033830 is a Bufab product in the C-Parts range.
- Is a datasheet available for 4033830?
- Yes — the 4033830 datasheet can be viewed and downloaded on this page.
- What is the minimum order quantity for 4033830?
- The minimum order quantity is 1.
- Is 4033830 available?
- Yes — 4033830 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).
