T 62 is the governing dimensional standard for wing nut. This page sets out the scope of the standard, reproduces the full size table it specifies, and lists the DIN/ISO/ASME cross-references commonly cited in datasheets and drawings.
T 62 — Scope
T 62 specifies the dimensions and tolerances of wing nut — gb/t 62 / din 315 (series 077). Material, property class, surface finish and packaging are governed by separate documents in the same standards family (for example ISO 898-1 for the mechanical property classes of bolts and screws).
Tolerance & Product Grades
T 62, alongside the related GB/T 62 / DIN 315 entries on this site, specifies product grades (typically A or B for fine work and C for general engineering) and tolerance classes for the controlling dimensions. Choose the grade against the precision your application requires.
Dimensions Specified by T 62
| Size | Pitch (mm) | Wing width A (mm) | Wing height h (mm) | Nut height m (mm) | Reference standard |
|---|---|---|---|---|---|
| M3 | 0.5 | 12 | 8 | 5 | GB/T 62 / DIN 315 |
| M4 | 0.7 | 16 | 10 | 7 | GB/T 62 / DIN 315 |
| M5 | 0.8 | 20 | 12 | 8 | GB/T 62 / DIN 315 |
| M6 | 1.0 | 24 | 14 | 10 | GB/T 62 / DIN 315 |
| M8 | 1.25 | 32 | 18 | 13 | GB/T 62 / DIN 315 |
| M10 | 1.5 | 40 | 22 | 16 | GB/T 62 / DIN 315 |
| M12 | 1.75 | 48 | 26 | 19 | GB/T 62 / DIN 315 |
| M16 | 2.0 | 60 | 32 | 24 | GB/T 62 / DIN 315 |
Equivalent Standards
Where direct equivalents exist (ISO ↔ DIN, ISO ↔ ASME), they are listed on the parent Wing Nut — GB/T 62 / DIN 315 (Series 077) page. Always confirm against the dimensions on this page, since some "equivalent" standards differ in tolerances and head geometry.
Companion Standards
T 62 controls only the geometry of wing nut — gb/t 62 / din 315 (series 077). The mechanical strength is set by ISO 898-1 (bolts and screws) or ISO 898-2 (nuts); the surface finish is governed by separate finish standards (e.g. ISO 4042 for electroplating). For corrosion testing, the relevant document is ISO 9227 (neutral salt spray).