XZ Fastener Concrete Anchoring Hardware
expansion anchor bolts supplier China
XZ Fastener supplies expansion anchor bolts from China for concrete and masonry fastening projects, including sleeve anchors, wedge anchors, hook sleeve anchors, eye bolt expansion anchors and related anchoring hardware. These fasteners are used for base plates, brackets, railings, racks, pipe supports, equipment bases and construction repair work where controlled expansion and stable thread engagement are required. Orders can be supplied according to DIN, ISO, ASTM, GB, buyer drawings or samples, with material grade, coating, size, packaging and inspection requirements confirmed before production. Matched nuts and washers are available upon request.
Quick Specs
What Buyers Should Know Before Sourcing Expansion Anchor Bolts
Expansion anchor bolts are mechanical anchors that grip concrete by expanding a sleeve, clip or body against the drilled hole wall. Before placing an order, buyers should confirm anchor type, diameter, length, embedment depth, concrete condition, thread size, nut and washer requirements, coating thickness and installation environment.
If your project compares wedge anchors, sleeve anchors and other concrete fasteners, this buyer guide on wedge anchors vs sleeve anchors may help clarify which structure is suitable for the load and installation method.
Procurement Notes
- Use actual drawing dimensions when hole depth or fixture thickness is critical.
- Confirm whether anchors will be installed in cracked concrete, solid concrete, brick or block.
- Specify whether anchors should be supplied as assembled sets or packed by component.
- For outdoor use, finish selection should consider moisture, salt spray and project life.
Common Purchasing Descriptions
Buyers often send RFQs using practical descriptions such as M8 zinc plated sleeve anchor with nut and washer, M12 wedge anchor for concrete base plate, hot dip galvanized expansion bolt for outdoor bracket, stainless steel expansion anchor for humid environments, hook sleeve anchor for suspension work, or eye bolt expansion anchor for light-duty fixing. A common reference item is the metal expansion anchor, which can be reviewed when comparing body structure and assembly style.
For combined fastener purchasing, XZ Fastener can also discuss related bolt items such as DIN 933 full thread hex bolts, Grade 8.8 carbon steel hex bolts, metric hex head bolts, zinc plated DIN 933 bolts, black oxide DIN 933 bolts and hot dip galvanized DIN 933 bolts according to order requirement.
Detailed Specifications Table
| Предмет | Common Options | Buyer Confirmation Needed |
|---|---|---|
| Anchor Type | Sleeve anchor, wedge anchor, drop-in anchor, hook sleeve anchor, eye bolt expansion anchor | Installation method, fixture type, load direction and base material |
| Диапазон диаметров | M6, M8, M10, M12, M16, M20 and inch sizes upon request | Thread diameter, hole diameter and tolerance requirements |
| Диапазон длин | Short, standard and long lengths according to drawing or sample | Total length, thread length, sleeve length and fixture thickness |
| Материал | Carbon steel, alloy steel, stainless steel A2/A4, brass for selected anchors | Grade, corrosion environment and magnetic or non-magnetic preference |
| Обработка поверхности | Plain, zinc plated, yellow zinc, black oxide, hot dip galvanized, passivated stainless | Coating thickness, color, salt spray requirement and thread fit after coating |
| Assembly | Anchor body, sleeve or clip, cone, nut, flat washer, spring washer where applicable | Whether supplied pre-assembled or packed by component |
| Packing | Bulk cartons, small boxes, bags, pallets, labels, buyer packaging available upon request | Quantity per box, carton weight limit, barcode and shipping marks |
| Inspection | Dimensional check, thread inspection, coating check, visual sorting, assembly verification | AQL level, inspection report format and third-party inspection need |
Material and Grade Explanation
Carbon steel expansion anchor bolts are commonly selected for general construction and equipment fixing where coating provides the required corrosion resistance. Grade selection should match the project load and installation condition; higher strength is not always the correct choice if the base concrete, sleeve structure or tightening method is not suitable.
Stainless steel anchors are used for humid, coastal or wash-down environments where corrosion resistance is more important. For buyers comparing mechanical fixing with adhesive systems, the guide to mechanical anchors and chemical anchors provides useful selection points.
Surface Finish Selection Guide
Indoor and General Use
Zinc plated or yellow zinc finishes are commonly used for indoor concrete fastening, warehouse racks, electrical brackets and machinery bases where moderate corrosion protection is sufficient. Plain finish can be supplied for temporary use, further coating or buyer-controlled treatment.
Outdoor and Harsh Environments
Hot dip galvanized expansion anchor bolts are usually considered for outdoor steel work, guardrails and exposed construction. Stainless steel with passivation is available for applications where corrosion staining must be reduced. For coating comparison, see XZ Fastener’s surface finish selection guide.
Manufacturing and Quality Control
Manufacturing may include wire or bar material preparation, cutting, cold forming or machining, threading, sleeve forming, cone processing, heat treatment when required, surface finishing, assembly and packing. Dimensional control is important because anchor expansion performance depends on the relationship between body diameter, sleeve geometry, thread fit and drilled hole size.
For special projects, custom fasteners can be supplied according to drawings, samples or project specifications. Inspection items can include thread gauge checks, length and diameter measurement, coating appearance, assembly verification and packing review. More details are available in the guide to fastener quality control during manufacturing.
Приложения
- Steel base plates, column shoes and support brackets fixed to concrete floors
- Pipe clamps, cable trays, electrical supports and mechanical equipment bases
- Warehouse racks, pallet racks, guardrails, handrails and safety barriers
- Facade brackets, solar mounting supports and light structural connections
- Maintenance, repair and retrofit jobs where cast-in anchors are not available
How to Get a Faster Quotation
To shorten quotation time, send a clear size list with anchor type, diameter, total length, thread length, material grade, finish, quantity, packaging method and destination. If the anchor is not a standard catalog item, attach a drawing, photo or sample reference. For project orders, include inspection requirements, coating thickness, labeling rules and whether nuts and washers should be packed together with the anchors.
Часто задаваемые вопросы
Can XZ Fastener supply expansion anchor bolts from China according to drawings?
Yes. Expansion anchor bolts can be supplied according to buyer drawings, samples or project requirements. Please provide dimensions, material, finish, tolerance, assembly details and expected quantity.
What is the difference between sleeve anchors and wedge anchors?
Sleeve anchors expand through a sleeve around the anchor body, while wedge anchors usually expand a clip near the embedded end. The suitable type depends on base material, fixture thickness, load direction and installation method.
Can expansion anchor bolts be supplied with nuts and washers?
Yes. Nuts, flat washers and other matching components can be supplied assembled or packed separately according to order requirement.
Which finish is suitable for outdoor expansion anchor bolts?
Hot dip galvanizing is commonly used for outdoor carbon steel anchors. Stainless steel may be selected for humid, coastal or corrosive environments. Final selection should match the project exposure and service life requirement.
What information is needed for an expansion anchor bolt RFQ?
Please provide anchor type, size, length, material grade, surface finish, quantity, packaging, drawings if available and inspection requirements. Installation details are helpful when the anchor type is not fixed.
Can mixed expansion anchor types be supplied in one order?
Mixed orders can be discussed. Buyers may combine sleeve anchors, wedge anchors, hook sleeve anchors, eye bolt expansion anchors and related fasteners if each item has clear specifications and quantities.
Send Your Expansion Anchor Bolt Requirement
Send XZ Fastener your size list, finish, quantity, packaging method and inspection requirements. Drawings, samples, photos or installation notes help confirm the correct anchor structure and shorten quotation time.
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