NXF USN A36/DIN17100/EN 10025-2/JIS G3101 Diameter M1.6-56 Grade 4.8-12.9 Color Zinc-plated Carbon Steel Fasteners Sleeve Anchor

2026-10-30 16:16 NXF GROUP
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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 Sleeve Anchor Introduction

The A36 Color Zinc-plated Sleeve Anchor is a widely used expansion anchoring fastener made from A36 carbon steel with color zinc plating for anti-corrosion protection. It consists of a tapered bolt, expansion sleeve and serrated flange nut. As the nut is tightened, the tapered end pulls into the sleeve and forces the slotted sleeve to expand firmly against the wall of the drilled hole, creating strong friction grip for secure fixation. The color zinc plated surface effectively improves rust resistance, adapting to indoor and general humid outdoor environments. This sleeve anchor is suitable for mounting fixtures on concrete, solid brick and masonry substrates. It is commonly applied for fixing railings, air-conditioning brackets, pipe supports, cabinet frames and engineering accessories. It features simple installation, stable load capacity and reliable anchoring performance.
A36 Color Zinc-plated Sleeve Anchor Drawing
A36 Chemical Composition And Mechanical Properties
Factory and Product Pictures
A36 Color Zinc-plated Sleeve Anchor Product Pictures
A36 PMI spectral testing proves
Video of a customer visiting us


Product processing

A36 Color Zinc-plated Sleeve Anchor Product Processing

1.Raw Material Inspection:
The raw material is A36 carbon steel round bar and steel strip for expansion sleeve. Upon incoming delivery, we carry out strict inspection. A spectrometer is used to test chemical composition to confirm compliance with A36 carbon steel standard. Tensile strength, yield strength and elongation tests are performed to verify load-bearing capacity. Visual inspection checks for cracks, rust, folds and surface pits on steel bar and strip. We also measure diameter, thickness, straightness and flatness. Non-conforming raw materials are marked, isolated and returned to prevent mixing into production batches.

2.Cutting & Stamping Forming:
Qualified steel bars are cut to specified length by band saw for anchor bolt body. The steel strip is fed into stamping press, slitted, rolled and welded to form tubular expansion sleeve. The sleeve is stamped with anti-slip diamond knurling and expansion slots. The bottom of the sleeve is pre-shaped for expansion opening. Burrs generated in stamping and cutting are removed thoroughly to avoid sharp edges. Hex flange nuts are cold-forged separately from carbon steel wire rod.

3.Thread Rolling & Taper Head Forming:
The bolt blank is clamped on thread rolling machine to form full external threads. Thread rolling improves thread density, tensile strength and fatigue resistance compared with cutting threads. One end of the bolt is cold-forged into a conical tapered head. The taper angle is precisely controlled; this tapered section will push the sleeve open and create friction locking force when tightening the nut.

4.Pre-assembly Function Test:
Assemble the bolt, expansion sleeve and flange nut together. Rotate the nut to check thread fit, confirm no galling, jamming or loose fit. Pull test is conducted to verify that the tapered head can expand the sleeve slots smoothly. Workpieces with crack, distorted slots, incomplete knurl or unqualified thread are rejected before surface treatment.

5.Color Zinc Plating Surface Treatment:
The qualified semi-finished assemblies go through the electroplating line following the standard sequence: alkaline degreasing → water rinsing → acid pickling to remove rust and oxide → activation treatment → zinc electroplating → chromate iridescent passivation. Coating thickness and passivation time are strictly controlled to achieve uniform rainbow color, good adhesion and corrosion resistance. After plating, parts are rinsed completely and baked at low temperature to eliminate residual liquid and prevent white rust formation.

6.Final Inspection & Packaging:
Carry out finished product inspection one by one or by sampling. Check thread compatibility, expansion opening performance, coating adhesion, salt spray resistance, dimension and appearance. Reject items with plating peeling, blistering, scratches or deformation. Qualified sleeve anchors 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.
Packing & Delivery
Packing
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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
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+8613917160311
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Email
info@nxf-group.com
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