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Datasheet generated 2026-10-07
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DIN 439-B Hexagon Nut, Stainless A4-25, M33 x 2 (439A43320)

Bufab · C-Parts · Hexagon Thin Nuts · Sweden · bufab.com
Part Number
439A43320  ·  HS 731816
DIN 439-B Hexagon Nut, Stainless A4-25, M33 x 2 (439A43320)

DIN 439-B hexagon nut (form B), M33 x 2, Article number 439A43320. Made in stainless steel a4-25. 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

StandardDIN 439
Standard descriptionB
Property class / gradeA4-025
Class (detailed)A4-025
Thread typeM
Thread diameter33 mm
Pitch2 mm
Thread pitch classFine
Thread directionRight
ThreadingFully Threaded
Surface treatmentPlain (no plating)
Surface treatment codePLAIN
Nut thickness16.5 mm
Width across flats50 mm
Thread standardISO metric (M)
Article number439A43320
CategoryNuts / Hexagon Thin Nuts

Properties

MaterialStainless A4-25
Primary standardDIN 439
Standard sizeM33 x 2
Thread standardISO metric (M)
MOQ1

Standards

Attached Documents