Product Description
DIN 431-B hexagon nut (form B), G 3/8", Article number 431B38. Property class / material: steel 14h, surface finish plain. 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
- B
- Property class / grade
- 14H
- Class (detailed)
- 14H
- Thread type
- G
- Thread diameter
- 16.662 mm
- Pitch
- 1.337 mm
- Thread pitch class
- Coarse
- Thread direction
- Right
- Threading
- Fully Threaded
- Surface treatment
- Plain (no plating)
- Surface treatment code
- PLAIN
- Nut thickness
- 7 mm
- Width across flats
- 27 mm
- Thread standard
- ISO 228-1 parallel pipe thread (G)
- Article number
- 431B38
- Category
- Nuts / Hexagon Pipe Nuts
Standards & Compliance
- Standard
- DIN 431
- Size / Series
- G 3/8"
- Material
- Steel 14H
- 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 431B38?
- 431B38 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 431B38.
- What is the HS code for 431B38?
- The customs tariff (HS) code for 431B38 is 731816.
- Who manufactures 431B38?
- 431B38 is a Bufab product in the C-Parts range.
- Is a datasheet available for 431B38?
- Yes — the 431B38 datasheet can be viewed and downloaded on this page.
- What is the minimum order quantity for 431B38?
- The minimum order quantity is 1.
- Is 431B38 available?
- Yes — 431B38 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).