Bolts Manufacturer & Supplier in China

Hex Bolts | Socket Head Cap Screws | Flange Bolts | Carriage Bolts | Eye Bolts | U Bolts | Stud Bolts
DIN / ISO / ASTM
4.8 / 8.8 / 10.9 / 12.9 / A2-70 / A4-80
Zinc Plated / HDG / Black Oxide / Dacromet / PTFE

Международная стандартная сертификация

высокоточный производственный процесс

Индивидуальный сервис 1-на-1

Весь ассортимент продукции охвачен

Болты

XZ Fastener supplies a wide range of bolts for industrial, construction, machinery, automotive, steel structure and general assembly applications. Our bolt products include hex bolts, socket head bolts, flange bolts, carriage bolts, eye bolts, U bolts and custom bolts, available in carbon steel, stainless steel and alloy steel. We support DIN, ISO, ASTM and custom standards, with grades such as 4.8, 8.8, 10.9, 12.9, A2-70 and A4-80, and surface finishes including zinc plated, hot-dip galvanized, black oxide, Dacromet and PTFE coating.

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Bolt Supply Capability

We supply standard and custom bolts in various materials, grades, sizes and surface finishes to meet different industrial and project requirements.

ПредметДоступные варианты
Типы продуктовHex Bolts, Socket Head Cap Screws, Flange Bolts, Carriage Bolts, Eye Bolts, U Bolts, Stud Bolts, Anchor Bolts, Custom Bolts
СтандартыDIN, ISO, ASTM, ANSI, JIS, BS, GB и пользовательские стандарты
Общие стандартыDIN 931, DIN 933, ISO 4014, ISO 4017, DIN 912, DIN 603, ASTM A193, ASTM F1554
МатериалCarbon Steel, Stainless Steel, Alloy Steel, Brass, Aluminum and special materials
Grades4.8, 5.8, 8.8, 10.9, 12.9, A2-70, A4-70, A4-80, ASTM A193 B7, ASTM F1554 Gr.55
Диапазон размеровM4–M36, 1/4″–2″, customized sizes available
Тип резьбыFull Thread, Half Thread, Coarse Thread, Fine Thread, Custom Thread
Обработка поверхностиОбычное, Цинковое, Горячее цинкование, Черный оксид, Дакромент, Цинко-алюминиевое покрытие, PTFE покрытие, Фосфатное покрытие
Head MarkingGrade marking, logo marking and customized head marking available
Сервис / Служба поддержкиMade to drawing, made to sample, special length, special head, special thread and customized packaging
СертификатыМТС, Отчет об инспекции, СО, Сертификат EN 10204 3.1 предоставляется по запросу
ПриложенияConstruction, Machinery, Steel Structure, Automotive, Solar Mounting, Railway, Bridge, Oil & Gas and General Industry

Please send us the bolt standard, size, material, grade, finish and quantity. We will provide a suitable quotation as soon as possible.

Часто задаваемые вопросы

We supply a wide range of bolts, including hex bolts, socket head cap screws, flange bolts, carriage bolts, eye bolts, U bolts, stud bolts, anchor bolts and custom non-standard bolts. Different materials, grades, coatings and standards are available according to project requirements.

We can supply bolts according to DIN, ISO, ASTM, ANSI, JIS and other international standards. Common standards include DIN 931, DIN 933, ISO 4014, ISO 4017, DIN 912, DIN 603, ASTM A193, ASTM F1554 and customized standards based on drawings or samples.

Our bolts are available in carbon steel, stainless steel, alloy steel, brass, aluminum and other special materials. Stainless steel grades such as A2-70, A4-70 and A4-80 are available, while carbon steel and alloy steel bolts can be supplied in different strength grades.

We can provide bolt grades such as 4.8, 5.8, 8.8, 10.9, 12.9, A2-70, A4-70, A4-80, ASTM A193 B7, ASTM F1554 Gr.55 and other grades according to customer requirements.

Available surface finishes include plain finish, zinc plated, hot-dip galvanized, black oxide, Dacromet, zinc-aluminum coating, PTFE coating, phosphate coating and other special coatings. The suitable finish depends on the application environment and corrosion resistance requirements.

Yes. We can supply full thread bolts, half thread bolts and custom thread lengths. For example, DIN 933 and ISO 4017 are commonly full thread hex bolts, while DIN 931 and ISO 4014 are commonly half thread hex bolts.

Yes. We support custom bolt production based on drawings, samples or technical specifications. Custom options include special head shape, non-standard length, special thread, custom material, special coating, logo marking and customized packaging.

Yes. We can provide material certificates, inspection reports, CO, and EN 10204 3.1 certificates when required. For project orders, we can also support dimensional inspection, hardness testing, tensile testing and surface treatment inspection.

To receive an accurate quotation, please provide the bolt type or standard, size, length, material, grade, surface finish, quantity, packaging requirement and destination country or port. If the bolt is non-standard, please send a drawing or sample photo.

MOQ depends on the bolt type, size, material, grade and surface finish. Standard bolts may have flexible MOQ if stock is available, while custom or special-grade bolts usually require a higher MOQ due to mold, material and production costs.

Yes. We can supply bolts together with matching nuts, flat washers, spring washers or other accessories. Please confirm whether you need only bolts or complete bolt sets before quotation.

We check dimensions, thread accuracy, head size, surface finish, mechanical properties, hardness, packaging and labeling before shipment. For high-strength or project bolts, additional inspection and test reports can be arranged according to customer requirements.

Need a bolt quotation? Send us your size, standard, material, grade, finish and quantity. Our team will help you choose the suitable bolt solution for your project.

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

Соответствующие международным стандартам

Вся продукция XZ соответствует основным мировым промышленным стандартам и адаптируется к спецификациям различных стран и регионов.

ИСО

Международная организация по стандартизации (ИСО) стандарты

ДИН

Немецкие промышленные стандарты

Великобритания

Китайские национальные стандарты

ANSI

Американские национальные стандарты

ДЖИС

Японские промышленные стандарты

Инженер по продажам XZ

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