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NXF USN A36/DIN17100/EN 10025-2/JIS G3101 Grade 4-12 Diameter M1-110 Color Zinc-plated Carbon Steel Fasteners Hex Slotted Nut
2026-10-30 16:18 NXF GROUP
2
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 Hex Slotted Nut Introduction
The A36 Color Zinc-plated Hex Slotted Nut is a reliable locking fastener manufactured from A36 carbon steel with color zinc plating surface finish. It is designed with evenly spaced slots on the top of the hex body, which allows a split cotter pin to pass through the slots and the hole of the matching bolt to prevent accidental loosening under vibration, shock or dynamic load conditions. The color zinc coating offers good rust and corrosion resistance for general industrial environments. It is widely paired with clevis bolts, axle bolts and high-vibration assemblies in machinery, vehicles, agricultural equipment and construction hardware. With precise internal thread tolerance and stable mechanical strength, this slotted nut provides secure anti-loosening performance for critical connection points.
A36 Color Zinc-plated Hex Slotted Nut Drawing
A36 Chemical Composition And Mechanical Properties
Factory and Product Pictures
A36 Color Zinc-plated Hex Slotted Nut Product Pictures
A36 PMI spectral testing proves
Video of a customer visiting us
Product processing
A36 Color Zinc-plated Hex Slotted Nut Product Processing
1.Raw Material Inspection:
The raw material is A36 carbon steel wire rod. Upon arrival, we implement strict incoming inspection procedures. Spectrometer testing is performed to verify chemical composition matches A36 carbon steel specification. Hardness and tensile tests are conducted to confirm mechanical properties meet load requirements. We visually inspect the wire surface for cracks, inclusions, rust, pits and deep scratches, and measure wire diameter, roundness and straightness. Any non-conforming stock will be clearly marked, isolated and returned to the supplier to prevent mixing into production batches.
2.Cold Heading & Hexagon Forming:
3.Tapping & Slot Milling:
4.Pre-plating Inspection Sorting:
2.Cold Heading & Hexagon Forming:
Qualified steel wire is fed into the multi-station cold header. The wire is cut to fixed-length blank, then cold forged step by step to form the hexagonal outline and nut body. Cold forging optimizes internal metal fiber flow, improves structural strength and impact resistance. After forming, the blank is trimmed to control the hexagon opposite side dimension and nut thickness within drawing tolerance, and coarse flash on edges is removed.
3.Tapping & Slot Milling:
The forged nut blank is transferred to tapping machine for internal thread machining. Thread tap with precision tolerance is adopted to guarantee thread fit accuracy, and thread integrity is checked after tapping. Next, the nuts are clamped on milling equipment to cut radial slotted grooves on the top hex corners. The slot width, depth and position are strictly controlled according to standard requirements for cotter pin installation. All burrs on thread surface and slot edges are cleaned thoroughly.
4.Pre-plating Inspection Sorting:
Semi-finished nuts go through preliminary sorting. Inspect thread quality, hex dimension, slot shape, check for broken threads, deformed slots, cracks and residual burrs. Unqualified products are picked out and scrapped or reworked, ensuring only eligible workpieces enter the electroplating process.
5.Color Zinc Plating Surface Treatment: The qualified semi-finished nuts are loaded into the electroplating rack, following the full plating process: alkaline degreasing → multi-stage water rinsing → acid pickling for rust and oxide removal → surface activation → zinc electroplating → chromate iridescent color passivation. Coating thickness, passivation time and temperature are precisely controlled to get uniform rainbow color coating, excellent coating adhesion and anti-corrosion ability. After plating, nuts are rinsed fully and baked at low temperature to remove residual moisture and avoid white rust.
5.Color Zinc Plating Surface Treatment: The qualified semi-finished nuts are loaded into the electroplating rack, following the full plating process: alkaline degreasing → multi-stage water rinsing → acid pickling for rust and oxide removal → surface activation → zinc electroplating → chromate iridescent color passivation. Coating thickness, passivation time and temperature are precisely controlled to get uniform rainbow color coating, excellent coating adhesion and anti-corrosion ability. After plating, nuts are rinsed fully and baked at low temperature to remove residual moisture and avoid white rust.
6.Final Inspection & Packaging:
Sampling and full visual inspection are carried out. Check thread gauge fit, hex size, slot dimension, coating appearance, salt spray resistance and coating adhesion. Reject nuts with peeling, blistering, uneven color, deformation or damaged threads. The qualified hex slotted nuts are packed into moisture-proof bags and cartons with desiccant inside. Each package is labelled with material grade A36, specification, batch number and inspection mark for storage and 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.
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:
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
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
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