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Hex All Metal Lock Nut (DIN 980V)

Hex All-Metal Lock Nut — DIN 980V Prevailing Torque Series

FULLERKREG DIN 980V all-metal prevailing torque hex lock nuts (Volcano-type top-locking) are available in three material and grade combinations to suit a wide range of industrial applications. All variants comply with DIN 980V and ASME B18.16.3M standards, feature metric coarse thread (6H), and require no nylon insert — making them suitable for high-temperature and high-vibration environments.

DIN 980V Sub-Series

DIN 980V All Metal Toplock — A2 Stainless Steel
Material: SUS304 (A2) · Surface: Passivated · Size: M6–M20 · Grade: A2-70 · Corrosion-resistant, non-magnetic

DIN 980V Top Locknut — Grade 8, Steel, Zinc Cr3
Material: 35K Carbon Steel · Surface: Zinc Cr3 · Size: M6–M20 · Grade: 8.0 · High strength, RoHS compliant zinc finish

DIN 980V Top Lock Nuts — Class 10, Alloy Steel, Zinc Cr3
Material: Alloy Steel 10B21 (Boron) · Surface: Zinc Cr3 · Size: M6–M20 · Class: 10.0 · Highest strength grade, Q&T heat treated

Grade & Material Selection Guide

Grade / Class Material Surface Tensile Strength Best For
A2-70 SUS304 Stainless Passivated ≥700 MPa Marine, food, chemical, outdoor
Grade 8 35K Carbon Steel Zinc Cr3 ≥800 MPa Automotive, machinery, steel structures
Class 10 10B21 Boron Alloy Zinc Cr3 ≥1000 MPa Heavy equipment, wind energy, mining

Common Specifications

Parameter Specification
Standard DIN 980V / ASME B18.16.3M
Type All-Metal Prevailing Torque Hex Lock Nut — Volcano Type (Top-Locking)
Thread Metric Coarse, Tolerance 6H (ISO 965-1)
Size Range M6 – M20
Locking Mechanism Top thread deformation (no nylon insert) — rated to 300°C
RoHS Yes — all variants compliant
Brand FULLERKREG

Product Gallery

DIN 980V All-Metal Lock Nut Series — actual product photos:

[Photo 1] [Photo 2] [Photo 3] [Photo 4]

Why Choose FULLERKREG

🏭 Direct Manufacturer — Factory-direct pricing with full production traceability.
📐 Strict Dimensional Control — 100% inspection against DIN 980V tolerances.
🔬 Material Certification — Mill test reports, hardness certificates, and RoHS declarations on request.
🛡️ Salt Spray Tested — Zinc Cr3 coating verified per ISO 9227; A2 passivation per ASTM A380.
📦 Flexible MOQ & Packaging — Bulk bags, boxes, or custom retail packaging available.
🚢 Global Shipping — FBA-ready export packaging, direct China-to-warehouse shipping.
⚙️ OEM Services — Custom marking, packaging, and certification documentation supported.

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