Product Description
DIN 431-A hexagon nut (form A), G 1/8", Article number 431A4018. Made in stainless steel a4. Hexagon Nut manufactured to DIN 431 with ISO 228-1 parallel pipe thread (G) 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 431
- Standard description
- A
- Property class / grade
- A4
- Class (detailed)
- A4
- Thread type
- G
- Thread diameter
- 9.728 mm
- Pitch
- 0.907 mm
- Thread pitch class
- Coarse
- Thread direction
- Right
- Threading
- Fully Threaded
- Surface treatment
- Plain (no plating)
- Surface treatment code
- PLAIN
- Nut thickness
- 6 mm
- Width across flats
- 18 mm
- Thread standard
- ISO 228-1 parallel pipe thread (G)
- Article number
- 431A4018
- Category
- Nuts / Hexagon Pipe Nuts
Standards & Compliance
- Standard
- DIN 431
- Size / Series
- G 1/8"
- Material
- Stainless A4
- Thread Standard
- ISO 228-1 parallel pipe thread (G)
- 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 431A4018?
- 431A4018 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 431A4018.
- What is the HS code for 431A4018?
- The customs tariff (HS) code for 431A4018 is 731816.
- Who manufactures 431A4018?
- 431A4018 is a Bufab product in the C-Parts range.
- Is a datasheet available for 431A4018?
- Yes — the 431A4018 datasheet can be viewed and downloaded on this page.
- What is the minimum order quantity for 431A4018?
- The minimum order quantity is 1.
- Is 431A4018 available?
- Yes — 431A4018 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).