ASME B18.2.2 Hex Nut Manufacturer | Heavy Hex & Finished Nuts | Inch Series Grade 2 5 8 | GFM-WCR System

工場：

私たち自身の工場

サンプル：

六角ナットボルトのサンプルは無料です

MOQ:

1000個

パッキング：

CTN、PLT、または顧客の要件に従って

Eメール：

eric@lzfasteners.com

今コンタクトしてください

Download PDF

Email: eric@lzfastenercom

WhatsApp: +86 15350500528

Phone: +86 18830006928 15350500528

詳細

ASME B18.2.2 Hex Nut Manufacturer | Heavy Hex & Finished Nuts

LONGZE high-strength ASME B18.2.2 Hex Nuts are precision-manufactured for critical structural and industrial fastening. As a core component of the LONGZE GFM-WCR System, our production covers both Finished Hex and Heavy Hex profiles, supporting Grade 2, 5, and 8 performance levels. We ensure strict adherence to dimensional tolerances and proof load requirements defined by ASME and SAE standards, providing reliable clamping force for heavy construction, energy infrastructure, and automotive assemblies.

🛡️ LONGZE ENGINEERED FASTENING SYSTEM

Optimal factory-direct assembly for imperial high-load 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 (Ref) | 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 (ASME ➔ DIN ➔ ISO)

Dimensional Mapping
ASME B18.2.2 ➔ DIN 934 (Ref) ➔ ISO 4032 / 4033

Technical Property Mapping
SAE J995 ➔ DIN EN ISO 898-2 ➔ ISO 898-2

LONGZE Technical Specification & Performance Lab

1. Technical HUB

Range	1/4" to 4" (Inch)
Performance	Grade 2, 5, 8, DH
Standards	ASME \| DIN \| ISO
Nut Profile	Heavy / Finished Hex

2. Surface Lab

Zinc Plated	ASTM B633 (ISO 4042 Ref)
Hot Dip Zinc	ASTM A153 / ISO 1461
Specialty	Black Oxide / Teflon

3. QC Lab

Proof Load	ASTM A563 / ISO 898-2
Dimensions	ASME B18.2.2 Precision
Certifications	Full MTC 3.1 / EN 10204

📊 ASME B18.2.2 Dimensional Matrix (Finished Hex Nuts)

Nominal Size	1/4"	5/16"	3/8"	7/16"	1/2"	9/16"	5/8"	3/4"	7/8"	1"
Threads (UNC/UNF)	20/28	18/24	16/24	14/20	13/20	12/18	11/18	10/16	9/14	8/12
Across Flats (W)	7/16	1/2	9/16	11/16	3/4	7/8	15/16	1-1/8	1-5/16	1-1/2
Thickness (H)	7/32	17/64	21/64	3/8	7/16	31/64	35/64	41/64	3/4	55/64

📥 DOWNLOAD OFFICIAL TECHNICAL DATA SHEET (TDS)

LZ-TDS-ASME-B1822-2026-V1.0.pdf

Customized Fastening Solutions & Drawing Support

📐

Send us technical drawings or assembly requirements for optimized hex nut solutions.

📩 eric@lzfasteners.com

* Professional factory-direct consultation.

🛡️ LONGZE STRATEGIC RISK MANAGEMENT & RESILIENCE

RISK MITIGATION PROTOCOLS

Tension Risk: Proof load testing according to ASTM A563 Grade DH / ISO 898-2.
Material Risk: In-house spectral analysis to verify SAE J995 Grade 5/8 chemistry.
Thread Risk: 2B thread fit inspection with Go/No-Go calibrated gauges.
Compliance Risk: Full adherence to RoHS/REACH and ISO 3269 inspection tiers.

SUPPLY CHAIN RESILIENCE

Material Buffer: Strategic stock of high-carbon steel wire for Grade 8 production.
Volume Ready: Automated cold-forming and hot-forging lines for all sizes.
Redundancy: Certified in-house heat treatment controlled by ISO-9001 protocols.
Transparency: Batch-level traceability from wire coil to shipping container.

🛡️ LONGZE RED-LINE POLICY

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

🚢 LOGISTICS RISK MANAGEMENT

Secure Shipping: Heavy-duty palletizing and moisture-resistant packaging for international transit to ensure thread protection and zero-damage arrival.

ASME & ISO Technical FQA

❓ Q: What is the difference between Finished Hex and Heavy Hex nuts?

A: Heavy Hex nuts (ASME B18.2.2) are slightly larger across the flats and thicker than standard Finished Hex nuts. They offer a larger bearing surface, ideal for structural bolts like A325 or A490.

🔄 Q: How does SAE Grade 8 compare to ISO Property Class 10?

A: Grade 8 (Imperial) and Class 10 (Metric/ISO) are broadly equivalent in terms of high tensile strength and proof load capacity, both requiring quenched and tempered medium carbon alloy steel.