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Prevailing Torque Hex Flange Nut ISO 7044 — 20

000284approvedStandard
Std. ref: ISO 7044ESX desig.: ESX-ISO7044-20-8-ST-PLStd. designation: Prevailing torque type hexagon nut with flange ISO 7044 - M20 - 8

Prevailing torque all-metal hexagon flange nut, style 2, per ISO 7044, thread M20.

Engineering Attributes

Dimensions

Flange Diameter42.8 (max) mm
Nominal Diameter20 mm
Nut Height22.4 (0/-2.10) mm
Thread SizeM20×2.5
Width Across Corners32.95 mm
Width Across Flats30 (0/-0.84) mm

Material & Finish

MaterialSteel (ISO 898-1)
Finish / SurfaceNone (as processed)
Insert MaterialNone (all-metal locking element)

Mechanical

Unit Weight99.4 ± 12.5 g
Load DirectionTensile (axial pull)
Strength Grade Property Class8

Interface

Installation MethodWrench / spanner
Locking FeatureYes
Thread TypeMetric coarse (M)

15 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.

Technical data is provided as-is and must be independently verified before use. Terms

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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 3 columns show the fields that differ from this item (Nut type · Flange diameter · Flange diameter limit). Values in blue differ; grey values match this item.

CodeItemStandardNut typethis item: Prevailing torque, all-metal hexagon flange nut (ISO 7044)Flange diameterthis item: 42.8 mmFlange diameter limitthis item: max
000284Prevailing Torque Hex Flange Nut ISO 7044 — 20this itemISO 7044Prevailing torque, all-metal hexagon flange nut (ISO 7044)42.8 mmmax
00024CPrevailing Torque Hex Nut ISO 7042 — 20also differs in: Height tolerance, Nut height, Nut height tolerance, Od limit, Strength grade property classISO 7042Prevailing torque, all-metal high nut (ISO 7042)