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Prevailing Torque Hex Nut ISO 7040 — 16

00021QapprovedStandard
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Std. ref: ISO 7040ESX desig.: ESX-ISO7040-16-5-ST-PL

Prevailing torque hexagon regular nut with non-metallic insert, per ISO 7040, thread M16.

Engineering Attributes

Dimensions

Nominal Diameter16 mm
Nut Height14.1 (min) mm
Thread SizeM16×2
Total Height19.1 (0/-1.30) mm
Width Across Corners26.75 mm
Width Across Flats24 (0/-0.33) mm

Material & Finish

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

Mechanical

Unit Weight47.7 ± 1.98 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/-1.3Nut heightthis item: 14.1 mm
00021QPrevailing Torque Hex Nut ISO 7040 — 16this itemISO 7040Nyloc (nylon insert, ISO 7040)0/-1.314.1 mm
00027UNyloc High Nut ISO 7041 — 16also 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)—15.7 mm
00024BPrevailing Torque Hex Nut ISO 7042 — 16also 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/-0.716.4 mm
000283Prevailing Torque Hex Flange Nut ISO 7044 — 16also 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/-1.118.3 mm