ISO 7040 Prevailing Torque Hexagon Nut Manufacturer | Nylon Insert Lock Nut | Standard Height Style 1 | GFM-WCR System

상표명:

롱즈

공장:

예

견본:

샘플은 무료입니다

MOQ:

1000개

포장:

판지, 팔레트 또는 맞춤형

이메일:

lisa@lzfasteners.com

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Email: eric@lzfastenercom

WhatsApp: +86 15350500528

Phone: +86 18830006928 15350500528

세부 사항

ISO 7040 Prevailing Torque Hexagon Nut Manufacturer | Nylon Insert Lock Nut

LONGZE high-performance ISO 7040 Prevailing Torque Hexagon Nuts are precision-engineered for industrial vibration resistance, featuring a non-metallic (nylon) insert for superior locking capability. As a core element of the LONGZE GFM-WCR System, these Style 1 standard height lock nuts provide reliable prevailing torque performance in dynamic load environments. Our manufacturing process ensures strict adherence to dimensional tolerances and mechanical properties, supporting critical machinery, structural, and automotive assemblies.

🛡️ LONGZE ENGINEERED FASTENING SYSTEM

Optimal factory-direct assembly for metric high-vibration environments:

🔹 Primary Bolt: ASME B18.2.1 | DIN 931 / 933 | ISO 4014 / 4017
🔹 Standard Washer: ASME B18.22.1 | DIN 125 | ISO 7089
🔹 Hardened Structural Washer: ASTM F436 | DIN 6916 | ISO 7416
🔹 Spring Lock Washer: ASME B18.21.1 | DIN 127 | ISO 10673 (Ref)

LONGZE GLOBAL FASTENERS STANDARDS SYSTEM

Engineering Standard Mapping Layer (ISO ➔ DIN ➔ ASME)

Dimensional Mapping
ISO 7040 ➔ DIN 985 (Ref) ➔ ASME B18.16.6

Technical Property Mapping
ISO 7040 ➔ ISO 2320 ➔ ISO 7040

LONGZE Technical Specification & Performance Lab

1. Technical HUB

Range	M3 to M36
Property Class	Class 5, 8, 10
Standards	ISO \| DIN \| ASME
Insert Material	Nylon (PA6/PA66)

2. Surface Lab

Zinc Plated	ISO 4042 (Cr3+)
Zinc Flake	ISO 10683
Specialty	Waxing for Torque Control

3. QC Lab

Torque Test	ISO 2320 Prevailing
Hardness	Vickers / Rockwell
Certifications	Full MTC 3.1 / PPAP III

📊 ISO 7040 Dimensional Matrix (Standard Height Style 1)

Thread Size (d)	M5	M6	M8	M10	M12	M14	M16	엠20	M24	M30
Pitch (P)	0.8	1.0	1.25	1.5	1.75	2.0	2.0	2.5	3.0	3.5
Height (h) max	6.3	8.0	9.5	11.5	14.0	16.0	18.0	22.0	28.0	30.0
Across Flats (s)	8.0	10.0	13.0	16.0	18.0	21.0	24.0	30.0	36.0	46.0

📥 DOWNLOAD OFFICIAL TECHNICAL DATA SHEET (TDS)

LZ-TDS-ISO7040-2026-V1.0.pdf

Customized Fastening Solutions & Drawing Support

📐

Send us technical drawings or assembly requirements for optimized locking solutions.

📩 eric@lzfasteners.com

* Professional factory-direct consultation.

🛡️ LONGZE STRATEGIC RISK MANAGEMENT & RESILIENCE

RISK MITIGATION PROTOCOLS

Locking Risk: ISO 2320 first and fifth removal torque verification.
Material Risk: Proof load testing to ensure property class compliance.
Insert Integrity: Temperature stability checks for nylon ring retention.
Compliance Risk: REACH/RoHS declaration for chemical substance safety.

SUPPLY CHAIN RESILIENCE

Component Buffer: Inventory of high-grade PA66 nylon locking rings.
Volume Ready: Automated multi-spindle tapping and insert assembly lines.
Redundancy: Secondary heat treatment partners for hardened lock nuts.
Transparency: Batch-coded traceability from steel coil to assembly node.

🛡️ LONGZE RED-LINE POLICY

Quality Guarantee: Any deviation from the signed TDS or PI is subject to 100% replacement after verification. We guarantee locking performance for every batch.

🚢 LOGISTICS RISK MANAGEMENT

Secure Shipping: Moisture-resistant packaging and photographic evidence of loading provided for every container to ensure cargo arrives intact.

ISO 7040 & DIN 985 Technical FQA

❓ Q: What is the primary difference between ISO 7040 and DIN 985?

A: The main difference is the height. ISO 7040 is a "Style 1" nut with a higher body, offering more thread engagement and generally higher proof load capacity than the DIN 985 "Thin Type".

🔄 Q: Can LONGZE nylon insert nuts be reused multiple times?

A: Yes, per ISO 2320, they maintain prevailing torque for up to 5 reuses. However, for critical safety applications, we recommend replacement once removed.