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Hexagon Flange Nut ISO 4161 — 12 — 9

00023WApprovedStandard
Std. ref: ISO 4161Std. designator: Hexagon nut with flange ISO 4161 - M12 - 9ESX designator: ESX-ISO4161-12-9-ST-PL

Hexagon flange nut, style 2, coarse thread, per ISO 4161, thread M12.

Engineering Attributes

Dimensions

Bearing Face Diameter23.8 min mm
Flange Diameter26 max mm
Flange Thickness1.8 min mm
Nominal Diameter12 mm
Nut Height12 (0/-0.43) mm
Width Across Corners20.03 min mm
Width Across Flats18 (0/-0.27) mm
Wrenching Height6.8 min mm

Material

MaterialSteel (ISO 898-1)
Finish / SurfaceNone (as processed)

External interface

Thread SizeM12×1.75
Locking FeatureNo
Thread TypeMetric coarse (M)

Internal properties

Unit Weight22.04 ± 1.13 g
Load DirectionTensile (axial pull)
Property Class9

16 attributes

Interchangeability

No interchangeability relationships agreed yet.

1 part is detected as substitutable for this one from the standard's own interchange rule — listed under Functional alternates below. A detection is computed on every read; a relationship here is one a party has agreed to.

3D · GLB
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Functional alternates

1

Same dimensions and material, so they fit the same place. They differ in strength class, coating or tolerance — check the requirement before substituting.

The last column shows the field that differs from this item (Strength grade property class). Values in blue differ; grey values match this item.

CodeItemStandardStrength grade property classthis item: 9
00023WHexagon Flange Nut ISO 4161 — 12 — 9this itemISO 41619
00023RHexagon Flange Nut ISO 4161 — 12 — 8ISO 41618