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Prevailing Torque Hex Nut ISO 7040 — 12

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Std. ref: ISO 7040ESX desig.: ESX-ISO7040-12-5-ST-PL

Prevailing torque hexagon regular nut with non-metallic insert, per ISO 7040, thread M12.

Engineering Attributes

Dimensions

Nominal Diameter12 mm
Nut Height10.37 (min) mm
Thread SizeM12×1.75
Total Height14.9 (0/-0.70) mm
Width Across Corners20.03 mm
Width Across Flats18 (0/-0.27) mm

Material & Finish

MaterialSteel (ISO 898-1)
Finish / SurfaceNone (as processed)
Insert MaterialNon-metallic (polyamide typical)

Mechanical

Unit Weight21.2 ± 0.945 g
Load DirectionTensile (axial pull)
Strength Grade Property Class5

Interface

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

15 attributes

Interchangeability

No interchangeability relationships agreed yet.

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

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Functional alternates

3

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 · Height tolerance · Nut height). Values in blue differ; grey values match this item.

CodeItemStandardNut typethis item: Nyloc (nylon insert, ISO 7040)Height tolerancethis item: 0/-0.7Nut heightthis item: 10.37 mm
00021NPrevailing Torque Hex Nut ISO 7040 — 12this itemISO 7040Nyloc (nylon insert, ISO 7040)0/-0.710.37 mm
00024APrevailing Torque Hex Nut ISO 7042 — 12also differs in: Insert material, Nut height limit, Nut height tolerance, Thickness limit, Total height, Total height toleranceISO 7042Prevailing torque, all-metal high nut (ISO 7042)0/-0.7312.3 mm
00027TNyloc High Nut ISO 7041 — 12also differs in: Height limit, Insert material, Product grade, Strength grade property class, Total height, Total height limit, Total height toleranceISO 7041Prevailing torque, nylon insert HIGH nut (ISO 7041)—11.57 mm
00024YPrevailing Torque Hex Flange Nut ISO 7044 — 12also differs in: Flange diameter, Flange diameter limit, Insert material, Nut height limit, Nut height tolerance, Od limit, Strength grade property class, Thickness limit, Total height, Total height toleranceISO 7044Prevailing torque, all-metal hexagon flange nut (ISO 7044)0/-1.2313.8 mm