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To make the best fastener nuts and bolts, Datian (DT) Fasteners has a complete set of strict quality inspection systems and solutions from raw materials entering the factory to finished product packaging. First of all, when we purchase raw materials for our standard bolt and nut, we will test the appearance, size, elements, performance, and harmful substances; secondly, during the production process, we will test the appearance, size, percussion test, and forging flow line of fasteners; When heat-treated products, we will test the appearance, hardness, torque, and tensile force; when the final surface treatment is carried out, we will do hydrogen embrittlement test, coating and salt spray test according to customer requirements. As a leading nuts and bolts manufacturing company in China, DT is equipped with standard quality testing laboratories and complete testing equipment to ensure the quality of our nuts and bolts for sale delivered to customers.

Different Types of Nuts And Bolts For Sale
Hex Nuts
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Hex Nuts
ISO 4032/4034/4036 HEX NUTS: Class 8, 10, 12
DIN 934/971/555 HEX NUTS: Class 8, 10, 12
AS 1112/2465 HEX NUTS
BS1981/4190/1769/916 HEX NUTS
Heavy Hex Nuts
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Heavy Hex Nuts
ASME B 18.2.6 Heavy Hex Nuts (ASTM A563/ A194/ A194M): 2H, 2HM, 7, 7L, 7M, 8/8A, DH, 8S, 10S,10,12
ANSI/ASME B18.2.2 Heavy Hex Nuts
Structural Nuts
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Structural Nuts
AS 1252 STRUCTURE NUTS: Class 8, 10
ANSI / ASME B18.2.2 STRUCTURE NUTS
DIN 6915 STRUCTURE NUTS
JIS B 1186 STRUCTURE NUTS
Flange Nut
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Flange Nut
ANSI / ASME B18.2.2 Flange Nuts
EN 1661/14218 Flange Nuts
ISO 4161 Flange Nuts
DIN 6331/6923/977 Flange Nuts
Square Nuts
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Square Nuts
ANSI/ASME B18.2.2 Square Nuts
DIN 557/562 Square Nuts
UNI 5597 Square Nuts
JIS B 1163 Square Nuts
Locking Nuts
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Locking Nuts
DIN EN 1663 Lock Nuts
BS 4929-2 Locking Nuts
ISO 7041 GR. 9, 12 / ISO 7719 GR.5, 8, 10 Locking Nuts
GB/T 889.2 Lockable Nut
Acorn Nuts
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Acorn Nuts
UNI 5721 Acorn Nuts
JIS B 1183 Acorn Nuts
SAE J 483 Acorn Nuts
DIN 1587 Acorn Nuts
Wing Nuts
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Wing Nuts
DIN 314 Wing Nuts
ASME B 18.6.9 Wing Nuts
JIS B 1185 Wing Nuts
High Wing Nuts-round Nose
T-Nuts
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T-Nuts
Din 508 T Nuts
JIS B 1167 T Nuts
UNI 5531 T Nuts
GB/T 12868 T Nuts
Heavy Hex Bolt
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Heavy Hex Bolt
A325 Heavy Hex Bolts
A193 B7 Hex Bolt
DIN 933 Hex Bolt
A307B Heavy Hex Bolts
All Threaded Rods
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All Threaded Rods
DIN 975/ DIN 976 Threaded Rod
A193 B7 Threaded Rod
ASME B 18.31.2 Double End Studs Bolt
Advantage of Datian Nuts And Bolts
Datian Hardware Nut Bolt
Heat Treatment
DT Equipment List
As a professional custom fastener manufacturer, Datian (DT) Fasteners has a complete quality assurance system and has passed the IS09001 quality system certification to ensure that every process from the incoming raw materials to the finished nuts and bolts bulk is effectively supervised, so as to ensure that our nuts and bolts for sale can pass Zhejiang provincial and national quality sampling inspections every year. Our steel nuts and bolts wholesale has successively been rated as high-quality products in Zhejiang Province and national high-quality products. We have provided supporting services for both domestic and foreign key projects, large enterprises, and group companies for a long time, and has the right to import and export. Our nut bolt manufacturing business proceeds well both at home and abroad and enjoys a good reputation.

How Do Nuts And Bolts Work?

Mechanical equipment is inseparable from screws and nuts in production, and it is the key to fastening everything. It is almost ubiquitous and is a very common part.

As a kind of fastener, the hardware nut bolt can effectively make the connection of objects stronger and tighter. Usually, a wrench or pliers are used for tightening work, which can be widely used in various industries. Nuts can be used in the automotive industry, agricultural machinery industry, construction machinery industry, shipbuilding industry and other places. The household appliances and cars we usually use need high-strength nuts and bolts for reinforcement, which is very practical. In fact, fastener nut bolts are also divided into many specifications and models, such as hexagonal nut specifications and square nut specifications.

The raw materials for the manufacture of nuts are copper materials, alloys, stainless steel, and carbon steel. All kinds of general hexagonal and octagonal nuts can be used for casting. The place where they are used usually does not require high product quality and accuracy; due to the comparison of square nut specifications there are many, so it needs to be subdivided according to the location of the application. It is usually cast with strong raw materials such as carbon steel and stainless steel, which are often stronger and more durable when welded.

Nuts And Bolts Material

Carbon Steel
We distinguish low carbon steel, medium carbon steel and high carbon steeland alloy steel by the content of carbon in carbon steel material.

High carbon steel
We distinguish low carbon steel, medium carbon steel and high carbon steeland alloy steel by the content of carbon in carbon steel material.

Low Carbon Steel
Low carbon steel C% 0.25% is usually called A3 steel in China. Foreign countriesare basically called 1008,1015,1018,1022,etc. Mainly used for grade 4.8 bolts,grade 4 nuts, small screws and other nut bolt wholesale without hardness requirements.

Medium Carbon Steel
Medium carbon steel 0.25%≤C%≤0.45% is usually called No. 35 and No. 45 steel in China, and is basically called 1035, CH38F, 1039, 40ACR, etc. abroad. These steel bolts and nuts are mainly used for grade 8 nuts, grade 8.8 bolts and grade 8.8 hexagon socket products.

Alloy Steel
Add alloying elements to ordinary carbon steel to increase some special properties of steel: such as 35, 40 chromium molybdenum, SCM435, 10B38.