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UNI 5587 A2-70 Stainless Steel Metric Heavy Hex Nuts Plain Finish Hexagon Nuts for Industrial Equipment and Machinery Fastening

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Product Description

UNI 5587 A2-70 Stainless Steel Metric Heavy Hex Nuts Plain Finish Hexagon Nuts

Our UNI 5587 A2-70 stainless steel metric heavy hex nuts are designed for reliable fastening in industrial equipment, machinery assembly, maintenance repair, construction hardware, and general engineering applications. Made from A2-70 stainless steel, these nuts provide stable fastening performance and a clean silver metallic appearance without additional zinc plating or galvanized coating.

The hexagonal shape allows easy installation with standard wrenches and sockets, while the internal metric thread is suitable for matching metric bolts, screws, and threaded rods. These stainless steel hex nuts are a practical choice for buyers who need corrosion-resistant fastening components for long-term industrial use.

For procurement teams, this product helps simplify sourcing by offering a standard hex nut solution with clear material, standard, strength class, and application direction.


Product Overview

Item Description
Product Name Stainless Steel Heavy Hex Nut
Standard UNI 5587
Nut Type Hex Nut / Heavy Hex Nut / Hexagon Nut
Material Stainless Steel
Stainless Steel Grade A2-70
Thread Type Metric Thread
Surface Finish Plain Stainless Steel Finish
Color Silver
Coating No Zinc Plating / No Galvanized Coating
Application Industrial Equipment, Machinery Assembly, Maintenance Repair, General Fastening
Matching Products Metric Bolts, Screws, Threaded Rods, Washers

Key Features

  • UNI 5587 standard for metric fastening applications
  • A2-70 stainless steel material for stable fastening performance
  • Plain stainless steel surface with clean silver appearance
  • Hexagon shape for easy installation with standard tools
  • Metric internal thread for matching metric bolts and threaded rods
  • Suitable for industrial equipment, machinery, repair, and construction hardware
  • Available for bulk orders and mixed-size purchasing

How This Product Helps Buyers

1. Clear Material Selection

A2-70 stainless steel is suitable for buyers who need stainless steel fasteners instead of carbon steel galvanized nuts. This helps avoid confusion between stainless steel products and zinc plated products.

2. Easier Matching with Metric Fasteners

The metric thread design allows the nut to be used with compatible metric bolts, screws, and threaded rods, helping buyers reduce thread-matching errors during procurement.

3. Practical for Equipment Repair

The hexagon shape works with common installation tools, making it convenient for maintenance teams to replace or install nuts during equipment repair.

4. Suitable for Industrial Fastening

The product is suitable for machinery assembly, equipment installation, maintenance repair, and general engineering fastening where stainless steel nuts are required.

5. Better Procurement Efficiency

Buyers can source stainless steel hex nuts in required sizes and quantities according to project lists, maintenance needs, or resale demand.


Application Areas

Application Area Typical Use
Industrial Machinery Equipment assembly and mechanical fastening
Equipment Repair Replacement of stainless steel nuts during maintenance
Construction Hardware General fastening with bolts and washers
Engineering Projects Metric fastening for project installation
Hardware Distribution Suitable for fastener wholesalers and resellers
General Assembly Used with metric bolts, screws, and threaded rods

Stainless Steel vs. Galvanized Nut

Item Stainless Steel Hex Nut Galvanized Hex Nut
Main Material Stainless Steel Usually Carbon Steel
Surface Plain Stainless Steel Finish Zinc / Galvanized Coating
Appearance Silver Metallic Silver or Dull Galvanized
Coating Layer No additional zinc coating Has surface coating
Suitable Buyer Customers requiring stainless steel fasteners Customers requiring coated carbon steel fasteners

FAQ

Q1: What type of nut is this product?

A1: This product is a UNI 5587 stainless steel metric heavy hex nut.

Q2: What material is used?

A2: The material is A2-70 stainless steel.

Q3: Is this nut zinc plated or galvanized?

A3: No. This product is stainless steel with plain stainless steel finish, not zinc plated or galvanized.

Q4: What thread type does this nut use?

A4: It uses metric thread.

Q5: What products can this nut be matched with?

A5: It can be used with matching metric bolts, screws, threaded rods, and washers.

Q6: What applications is this nut suitable for?

A6: It is suitable for industrial equipment, machinery assembly, equipment repair, construction hardware, and general fastening.

Q7: Can I order different sizes together?

A7: Yes, mixed-size orders can be arranged according to your required specifications and quantities.

Q8: What information should I provide for a quotation?

A8: Please provide the size, quantity, standard, material grade, packing requirement, and delivery destination.

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International Standard Certification

Complies with major global standards such as ISO/DIN/GB/ANSI/JIS

Full range of products covered

Standard parts + customized parts, one-stop solution for all your fastening needs

High-precision manufacturing process

Tolerance control far exceeds industry standards, ranging from 4.8 to 12.9 grades.

1-on-1 Customization Service

Customization based on provided drawings/samples/working conditions; rapid prototyping and mass production delivery.

What Our Customers Say

Trusted by global manufacturers for fastener solutions

BrightBuild Hardware Ltd.
BrightBuild Hardware Ltd.
United Kingdom
XZ FASTENER has been a reliable supplier for our construction fastener orders. The bolts and nuts arrived with good surface finish, accurate sizes, and strong packaging. Communication was clear from quotation to shipment.
Andina Industrial Supply S.A.
Andina Industrial Supply S.A.
Colombia
We ordered different sizes of hex bolts, washers, and nuts. XZ FASTENER helped us confirm the specifications and provided a practical shipping solution. The quality was stable and suitable for our local market.
Falcon Engineering Supplies
Falcon Engineering Supplies
United Arab Emirates
XZ FASTENER understands export business very well. They prepared the quotation, packing details, and documents professionally. The products matched our requirements and the delivery was well organized.
Pacific Bolt & Nut Trading
Pacific Bolt & Nut Trading
Philippines
We appreciate their fast response and flexible support. Even though our order included mixed sizes and different surface treatments, XZ FASTENER handled everything carefully. Good partner for wholesale fasteners.
Monterra Hardware Group
Monterra Hardware Group
Mexico
The galvanized fasteners we received were clean, well packed, and consistent in thread quality. XZ FASTENER gave us clear product photos before shipment, which helped us feel confident about the order.
Eastern Mechanical Parts Co.
Eastern Mechanical Parts Co.
Saudi Arabia
We purchased high-strength bolts and nuts for machinery maintenance. The products were strong, accurate, and packed in export cartons. XZ FASTENER is a serious factory supplier.
GlobalFix Distributors
GlobalFix Distributors
South Africa
XZ FASTENER provides competitive pricing without ignoring quality. Their team helped us compare materials, grades, and surface treatments before confirming the order. This saved us time and reduced purchasing risk.
Nova Tools & Fasteners
Nova Tools & Fasteners
Chile
Our customers care about stable quality and good appearance. The fasteners from XZ FASTENER met our expectations. The cartons, labels, and product sorting were also handled professionally.
Delta Construction Supply
Delta Construction Supply
Kenya
We needed fasteners for construction use in several sizes. XZ FASTENER responded quickly and gave practical advice on packing and shipment. The goods arrived in good condition.
Atlas Industrial Trading
Atlas Industrial Trading
Turkey
The product quality was consistent across different batches. Threads were clean, dimensions were accurate, and the surface treatment looked good. We are satisfied with XZ FASTENER’s factory support.
RedRock Hardware Importers
RedRock Hardware Importers
Australia
XZ FASTENER helped us source both standard and customized fasteners. Their team checked drawings carefully and confirmed details before production. This is very important for B2B buyers like us.
PrimeFix
PrimeFix
Canada
We like working with suppliers who communicate clearly. XZ FASTENER gave us photos, weight information, packing details, and shipping suggestions. The whole process was smooth.

Customer Visits & Certificates

Globally Compliant Standards

All XZ products comply with major global industrial standards and are adaptable to the specifications of different countries and regions.

ISO

International Organization for Standardization (ISO) standards

DIN

German Industrial Standards

GB

Chinese National Standards

ANSI

American National Standards

JIS

Japanese Industrial Standards

Application Areas

Mechanical equipment
manufacturing

Automobiles &
New Energy

Rail transit

Aerospace

Petrochemical

Shipbuilding &
Ocean

New energy photovoltaic /
wind power

Electronics &
Electrical

High-end buildings

Special industrial
equipment

XZ Sales Engineer

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