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Gr4.8 8.8 DIN933 GB /T 5782-Carbon Steel Hex Head Bolts With Zinc Surface

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Gr4.8 8.8 DIN933 GB /T 5782-Carbon Steel Hex Head Bolts With Zinc Surface

Brand Name : HNF
Model Number : DIN933
Certification : ISO 9001
Place of Origin : Zhejiang
MOQ : 1000kg
Price : Negotiation
Payment Terms : L/C, T/T, Western Union
Supply Ability : 500 TON PER MONTH
Delivery Time : 15-20 DAYS
Packaging Details : carton box + exporting wooden pallet
Product : Hex bolt
Material : Carbon steel
Grade : Gr 4.8 Gr8.8
Surface : Zinc
Torque Coefficient : 0.110~0.150
Head Style : Hexagonal
Specifications : DIN933/DIN931/ANSI B18.2.1
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Gr4.8 8.8 DIN933 GB /T 5782-Carbon Steel Hex Head Bolts zinc Surface

1. Product Description

The external hexagonal screw is a hexagonal screw, also known as a hexagonal screw. The Chinese standard for external hexagonal screws is based on Chinese standard parts. Abbreviated as the national standard. Then this external hexagonal screw standard refers to the external hexagonal screw national standard.

The outer hexagon bolt standard has one standard is the grade standard. Grade standard is divided into 4.8 grade and 8.8 grade. These two grades are used in particular on the market. Especially 4.8 grade external hexagonal bolt. Because it is much cheaper than 8.8 class outer hexagon bolt. Use more widely, of course. Some. But for high-demanding products. Because of the high requirements of hardness and other aspects. This requires the use of 8. 8 grade external hexagon bolt. 8.8 class external hexagon bolt from the hardness and torque of screws, etc. More secure in the use of products. More fastening. More stable.

Mechanical part, cylindrical threaded fastener with nuts. A type of fastener consisting of a head and a screw (a cylinder with external threads), which shall be matched with the nut. Used to fasten two parts with through holes. This form of connection is called bolt connection. If you unscrew the nut from the bolt, you can separate the two parts, so the bolt connection is detachable.

2. Specification

Product NameM3-M56 DIN933 DIN933 Carbon Steels and Stainless Steels full Threaded Hex Bolt
Process Methodcold forging & hot forging
SizeDiameter M12-M52 , length 40mm-500mm
Grade4.8, 8.8S,10.9S,12.9S
Size Tolerance+/- 2.5%~-2.5%
WT Tolerance+/- 2.5%~2.5%
Tensile Strength830~1030 MPa/1040~1240 MPa
PackagingCarton box + wooden pallet or tin containers + wooden pallet or as customer's request
Material chemical




Capacity500 tons/month
Delivery termsFOB / CIF / CFR / DAP or discuss with us for other terms
Delivery Time15-30 days after deposit received or L/C received in our bank

3. Application

The most common hexagon bolt.Applicable to grade two, fifth grade, eighth grade and stainless steel.In most cases, it is threaded.Automotive, mechanical, electronic products, furniture products, music components, computers, power switches, small switches, hardware and plastic molds, sports equipment and so on.

Hexagon screws, standard parts and fasteners are widely used in all kinds of mechanical equipment, electronic products, communication equipment, furniture and equipment, construction and other production, installation and maintenance.Roads, Bridges, tunnels, urban rail transit system, high speed railway, sailors handicraft, thermal power, wind power, nuclear power, transmission and distribution, machinery, petrochemical, aviation, steel roof structure, etc.

4. Advantages

Small order acceptance

Agency provision

Electronic Vaulting

Experienced Staff


green product

Guarantee / guarantee

International ratification

military specification



product features

product property

delivery on spot

country of origin

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Gr4.8 8.8 DIN933 GB /T 5782-Carbon Steel Hex Head Bolts With Zinc Surface Images

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