ASME B18.21.1 LOCK WASHER — 5/8

WASHERS

High-performance industrial fastener under ASME B18.21.1 standard.

CEV-1 HASH: 2f1ff14b60d44b781c62ca778543bd9af2a55f1299ff3f01a23a410943433c76 · FROZEN: 2026-05-24 00:43:04 · ASSET: standard_map_core.csv

Material Grade Filter

Dimensions

Nominal Thread Diameter (d)	15.88 mm
Outer Diameter (d2)	27.08 mm
Thickness (T)	3.96 mm
Tensile Strength	119,946 psi
Material	Grade 5
Surface	Plain

Helical spring lock washer per ASME B18.21.1-2009 (inch series). T is the section thickness of the washer.

Grades

Grade 5

Grade Grade 5 · Plain

Grade 5

Grade Grade 5 · Zinc

Grade 5

Grade Grade 5 · HDG

Grade 8

Grade Grade 8 · Plain

Grade 8

Grade Grade 8 · Zinc

Grade 8

Grade Grade 8 · HDG

← Back to ASME B18.21.1 LOCK WASHER → B3 Grade Matrix → Engineering Center (C)

Need technical support?

Contact engineering team for verified B2 data reference.

Standard References: Official ASME standards · ASME B18.21.1 reference (fasteners.eu)

ASME B18.21.1 Lock Washer per ASME B18.21.1 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.

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