NXF USN A36/DIN17100/EN 10025-2/JIS G3101 Diameter 1-100mm Grade 100-450HV Color Zinc-plated Carbon Steel Fasteners Flat Washer

2026-11-03 15:41 NXF GROUP
1
Products Description

A36 Introduction

ASTM A36 is the most commonly used mild and hot-rolled steel. It has excellent welding properties and is suitable for grinding, punching, tapping, drilling and machining processes. Yield strength of ASTM A36 is less than that of cold roll C1018, thus enabling ASTM A36 to bend more readily than C1018. Normally, larger diameters in ASTM A36 are not produced since C1018 hot roll rounds are used.

A36 Color Zinc-plated Flat Washer Introduction

A36 Color Zinc-plated Flat Washer is a carbon steel flat washer made of A36 carbon steel with color zinc plating surface
treatment. It features flat and smooth surfaces, uniform thickness and precise inner and outer diameter dimensions. The color zinc coating offers excellent corrosion resistance and oxidation protection, extending the service life under outdoor and humid working conditions. This washer is used to distribute the clamping force of fasteners evenly, prevent loose tightening, protect the contact surface from scratch and pressure damage. It matches well with bolts, nuts and screws, widely applied in construction, machinery, pipeline and general fastening assemblies. We can supply various sizes complying with international standards.
A36 Color Zinc-plated Flat Washer Drawing
A36 Chemical Composition And Mechanical Properties
Factory and Product Pictures
A36 Color Zinc-plated Flat Washer Product Pictures
A36 PMI spectral testing proves
Video of a customer visiting us


Product processing

A36 Color Zinc-plated Flat Washer Product Processing

1.Raw Material Inspection:
We inspect incoming A36 carbon steel coil strips. Use a spectrometer to verify chemical composition and perform mechanical property tests to confirm compliance with ASTM A36 standard. Carefully check the strip surface for cracks, rust, pits, scratches and laminations. Check the thickness and width tolerance. Unqualified steel strips will be marked, isolated and returned to the supplier.

2.Blanking & Stamping Forming:
Feed the qualified steel strip into the stamping press with precision die sets. Complete high-speed blanking to punch the inner hole and outer circle of flat washers in one stroke. Control stamping pressure and feeding accuracy strictly to guarantee concentricity, outer diameter and inner diameter dimensions. Remove rough edge burrs after stamping, sort out deformed, cracked or misshapen semi-finished washers.

3.Deburring & Pre-cleaning:
Put stamped washers into the tumbling machine with abrasive media for tumbling deburring. Remove sharp burrs and stamping flash around the inner hole and outer edge. Then carry out degreasing pre-cleaning to wipe off stamping oil, dust and metal powder on the surface, ensuring a clean base for subsequent plating.

4.Acid Activation & Color Zinc Plating:
Send cleaned washers to the electroplating line. First perform pickling and activation to remove thin oxide layer. Then proceed with color zinc plating process. Strictly control current density, plating time, bath temperature and PH value to form uniform, bright chromate color zinc coating. Control coating thickness to meet customer anti-corrosion requirements.

5.Post-plating Treatment & Full Inspection:
Complete passivation and sealing treatment after plating to improve corrosion resistance of the zinc layer. Conduct full visual inspection: check for plating leakage, blistering, peeling, discoloration and scratches. Randomly test coating thickness, salt spray resistance and dimensional tolerance. Mark batch number for qualified washers.

6.Sorting, Packaging & Shipment:
Sort qualified washers by size. Pack them into plastic bags or cartons according to packing quantity requirement, add desiccant inside for moisture-proof. Put packed goods into export wooden cases. Attach inspection certificate and shipping mark before shipment.

Our NXF GROUP advantage as follow

1.Our NXF GROUP have our own factory, and we can control the cost by producing by ourselves. We have a great advantage in price and can give you the lowest price based on best quality.
2.Our NXF GROUP can strictly control the quality. We have production, quality inspection, warehousing and other departments to coordinate and control the quality,Such as PMI and size testing.
3.Our NXF GROUP biggest advantage is 3S service. Small quantity, short time, special materials.
4.Our NXF GROUP have excellent quality certificate system and trademark certificate.
5.Our NXF GROUP have a comprehensive after-sales service guarantee, such as the transaction guarantee provided by Alibaba International Station, as well as remote technical guidance and services.
6.Our NXF GROUP have a well-established logistics support system that can save you both time and money, providing you with a one-stop service.
Packing & Delivery
Packing
Delivery
Company Profile
New XiFei (SuZhou) Business Co.,Ltd is one of the leading and most respected manufacturers in China. Our products include metals,machinery, containers, construction materials, mechanical products, electrical systems, and medical accessories.Established in1980, XIFEI has been working diligently ever since to embrace the needs of our global customer base.We work to ensure absolute customer satisfaction. Our team has dedicated itself to perfecting our three core components, "Service, Management and Craftsmanship." Our advantage:3S Service(Small Quantity/Short Time/Special Material)
Certification
FAQ
1. who are we?
We are based in Jiangsu, China, start from 2021,sell to South Asia(30.00%),Eastern Asia(10.00%),Mid East(10.00%),Eastern Europe(10.00%),South America(10.00%),Domestic Market(5.00%),North America(5.00%),Northern Europe(5.00%),Central America(5.00%),Africa(5.00%),Southeast Asia(5.00%). There are total about 101-200 people in our office.

2. how can we guarantee quality?
Always a pre-production sample before mass production;
Always final Inspection before shipment;

3.what can you buy from us?
Pipe,Flange,Steel plate,Pipe fittings,Alloy products

4. why should you buy from us not from other suppliers?
Our advantage:
1.Our NXF GROUP have our own factory, and we can control the cost by producing by ourselves. We have a great advantage in price and can give you the lowest price based on best quality.
2.Our NXF GROUP can strictly control the quality. We have production, quality inspection, warehousing and other departments to coordinate and control the quality,Such as PMI and size testing.
3.Our NXF GROUP biggest advantage is 3S service. Small quantity, short time, special materials.
4.Our NXF GROUP have excellent quality certificate system and trademark certificate.
5.Our NXF GROUP have a comprehensive after-sales service guarantee, such as the transaction guarantee provided by Alibaba International Station, as well as remote technical guidance and services.
6.Our NXF GROUP have a well-established logistics support system that can save you both time and money, providing you with a one-stop service.


5. what services can we provide?
Accepted Delivery Terms: FOB,CFR,CIF,EXW,FCA,DDP,DDU;
Accepted Payment Currency:USD,EUR,CAD,HKD,CNY;
Accepted Payment Type: T/T,L/C,D/P D/A,Credit Card,PayPal;
Language Spoken:English,Chinese,Spanish,Russian



Phone
+8613917160311
Whatsapp
Whatsapp
+8613917160311
Wechat
Wechat
Inquiry
Email
info@nxf-group.com
Inquiry
Inquiry