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ASME B18.2.2 HEX NUT — Size Navigator

Deterministic evaluation of fastener standards based on geometry, material, and compliance constraints. Complete engineering specifications across all 66 size/grade/finish variants.

ASME B18.2.2 Hex Bolt Dimensions

Hex nuts, imperial series. Nominal dimensions for width across flats (s) and head height (k) across 11 metric sizes. Values in millimetres.

SizeWidth Across Flats (s)Head Height (k)
1/411.135.74
5/1612.76.93
3/814.278.56
7/1617.489.78
1/219.0511.38
9/1622.2212.6
5/823.8314.2
3/428.5716.89
7/833.3219.71
1-1/842.8825.37
1-1/447.6227.79

Equivalent Standards

ASME B18.2.2 is dimensionally cross-referenced with the following standards:

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Compatibility Result

INSTALLABLE
No constraint violation detected.

Risk Level

0.12
Low structural risk

Evaluation Steps

/standards/asme-b18-2-2/
Canonical equivalence resolved
📋 [EVALUATION LOG]
INPUT → STANDARD: ASME B18.2.2 | SIZE: 1/2" | GRADE: Grade 5
✓ STEP 1 → Geometry validation: PASS
✓ STEP 2 → Thread compatibility: PASS
✓ STEP 3 → Load constraint: PASS
ℹ STEP 4 → Route mapping: RESOLVED
✓ RESULT → INSTALLABLE (score 0.12)

📋 Standard Information

Standard ASME B18.2.2
Category NUTS
Type NUT
Total Specs 66
Available Sizes 11
Material Grades Grade 5, Grade 8
Surface Finishes HDG, Plain, Zinc

🔗 Cross-Standard Equivalence

Standard Name Status Risk Note
ASME B18.2.2, DIN 934 Equivalent standards in cluster IN CLUSTER —
Related Standard Relationship Confidence
DIN 934 Cross-system 0.70

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ASME B18.2.2 in the concept layer — Fastener Knowledge:

📏 Size Navigator

Select a size to view its complete engineering data — including dimensional tolerances, material grades, mechanical properties, and surface finish options.

🔄 Standard Redirect Map

Non-canonical standard paths are automatically redirected to their canonical ISO equivalents via the Engineering Data Authority Lock. Equivalent standards: ASME B18.2.2, DIN 934

Source (Non-Canonical) Target (Canonical Route)
No redirects — this is the canonical standard
CEV-1 HASH: c6a710cacb9c0d3e05a6dbd0509b3e22a51a4ee1ec7493fc087e09912cb0c11a FROZEN: 2026-08-17 20:13:55 ASSET: standard_map_core.csv CLUSTER: [ASME B18.2.2, DIN 934]
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ASME B18.2.2 Hexagon Nut per ASME B18.2.2 specification, available in Grade 5 grade with Plain finish. Engineered for industrial OEM applications requiring 827.0 MPa tensile strength and reliable long-term fastening performance.

💬
Related standards: ASME B18.2.1 hex bolts · ASME B18.3 socket head cap screws · ASME B18.21.1 lock washers · ASME B18.22.1 plain washers · ASME B18.2.2 5/16 hex nut