| Standard | GB, DIN, ISO, BSW,UNC |
| Size | M3-M50 or non-standard as request&design |
| Material | Carbon steel, stainless steel, alloys steel etc. |
| Hex head bolt and nut Grade | 4.8 / 8.8 / 10.9 / 12.9 , A2-70 / A4-80 |
| Packing | Box, carton or plastic bags, then put on pallets, or according to the demand of the customers |
High strength hexagonal bolts are a type of metal accessory typically made of high-strength steel, with high tensile and compressive strength, suitable for applications that require high loads. The characteristics of this type of bolt include high strength, durability, and the ability to maintain fastening even in harsh environments such as heavy loads and vibrations. The application range of high-strength hexagonal bolts is wide, including but not limited to the connection of bridges, steel rails, high and ultra-high voltage equipment. In order to ensure the sealing of the container on ultra-high pressure equipment, high-strength hexagonal bolts need to be subjected to significant pre stress. In addition, the installation of high-strength external hexagon bolts usually adopts a method that does not require rework, and can be quickly connected even under insufficient conditions
High strength hexagonal bolts can be classified into various types based on their performance levels and application scenarios. For example, GB5783 high-strength 8.8 grade carbon steel hexagon bolt is a type of high-strength hexagon bolt in the national standard category, widely used in factories, mines, steel structure engineering and other occasions. Its performance level is 8.8 grade, the material is high-strength carbon steel, and it has good tensile strength and high-strength tensile performance.
Overall, high-strength external hexagonal bolts play an important role in various environments that require heavy loads and vibrations due to their high strength, durability, and quick installation characteristics. They are one of the indispensable fasteners in industrial manufacturing, construction engineering, and other fields.
Standard for high-strength hexagonal bolts
The standards for high-strength hexagonal bolts mainly include the national standards GB5783-86 and GB/T1228-2006. These standards specify the technical requirements for bolt size, material, strength grade, etc., ensuring the quality and performance of bolts.
Specific content of the standard
The specific contents of these standards include:
Thread diameter (d): The nominal diameter of the threaded portion of the bolt.
Bolt length (L): The length from the lower plane of the bolt head to the end of the bolt.
Pitch (P): The distance between threads (usually divided into coarse and fine threads).
Head to side width (S): The width of the opposite side of a hexagonal head.
Head height (K): The height of a hexagonal head.
Materials and strength grades: such as carbon steel, stainless steel, alloy steel, etc., and their strength grades (such as 4.8, 8.8, 10.9, 12.9, etc.).
Scope and Importance of Standard Application
These standards are widely used in the fields of architecture and engineering, especially in situations where high-strength connections are required. For example, in the structural connections of bridges and buildings, high-strength external hexagonal bolts can provide sufficient fastening force and tensile strength to ensure the safety and stability of the structure.
Flat Washer Material: carbon steel, stainless steel,brass, etc. Size: M2-M64, 1/4-2-1/2 Standard: DIN125,ASTM F436 ,ISO 7089,GB/T97 Finish: white zinc plated, yellow zinc plated, blue zinc plated, Hot-dip galvanized, plain,black oxide, etc.
Material Steel/Alloy/Bronze/Iron/ Carbon steel/etc Grade 4.8/ 6.8 /8.8 /10.9 /12.9 specification M0.8-M12 or 0#-1/2″ and we also produce according to customer’s requirement Standard ISO,DIN,JIS,ANSI/ASME,BS/Custom Color We can provide customized services according to your needs Surface Treatment We can provide customized services according to your needs Product Wheel / Lug Nut Mark According to customer’s requirement Package Cartons&pallets or according to customer’s requirement.
Structure of electric vehicle follow-up brake: It mainly includes components such as brake box, two brake shoes, crank, reset spring, adjusting parts, tension column, etc. Specifically, the working principle of the follow-up brake is to increase the rotation angle of the two brake shoes during braking through the setting of metal plates and reels, thereby increasing the maximum braking resistance. This structure achieves the adjustment of braking effect through two brake shoe blocks hinged on the hinge shaft fixed on the brake box, as well as adjusting components provided on the brake box on one side of the hinge shaft. In addition, the follow-up brake also has a lock that can lock the brake disc components, providing dust-proof and waterproof functions to ensure brake sensitivity
item value Shank Type smooth Head Style cylindrical head Place of Origin China Hebei Brand Name Dewell Model Number Customized Type welding screw Material carbon Steel Head Diameter 6mm-22mm
The window regulator motor is the power source of the window glass lifting system, responsible for driving the glass up and down. It is usually installed inside the car body or in the car door, connected to the window glass through steel wire ropes or guide rails, to achieve the control of the window lifting. The working principle of a motor is based on electromagnetic induction and changes in the direction of current. By changing the direction of current, the motor’s forward and reverse rotation can be controlled, thereby achieving the up or down movement of the car window. The start and stop of the motor are controlled by the switch inside the car, making it convenient for the driver to operate. In addition, in order to protect the motor, wire rope, and guide rail, a lubrication system is also installed in the system to provide lubricating oil for these components, reduce friction, and extend service life.
Truss Head Self Drilling Screws Size:M4.2-M4.8 Length:12mm-50mm Material: carbon steel Finish: white zinc plated, blue zinc plated,etc.
Flange nut, also known as washer nut, serrated nut, hexagonal flange nut, flange nut, etc. Mostly used for pipeline connections or workpieces that require increasing nut contact surfaces.
Standard GB, DIN, ISO, JIS Size M3-M50 or non-standard as request&design Material Carbon steel, stainless steel, alloys steel etc. Hex head bolt and nut Grade 4.8 / 6.8 / 8.8 / 10.9 / 12.9 , A2-70 / A4-80 Packing Box, carton or plastic bags, then put on pallets, or according to the demand of the customers
item 8.8 High Tensile Black Oxide Flat Washer Finish Black, ZINC, Plain Style flat washer Material Stainless Steel, Steel Application Heavy Industry, Retail Industry, General Industry Place of Origin HEB Model Number 6-30 Standard DIN Material Stainlesss Steel， Carbon Steel Surface treatment White Zinc .Yellow Zinc. HDG MOQ 5000pcs Grade 4.8/ 8.8/ 10.9/ 12.9 Ect
Double Fold Self Locking Washer Material: carbon steel, stainless steel, etc. Size: M5-M39, 1/4”-1-1/2”,etc. Standard: DIN25201,GB/T955 Finish: white zinc plated, yellow zinc plated, blue zinc plated, Hot-dip galvanized, black oxide, plain, etc.
Spring Washer Material: carbon steel, stainless steel,brass, etc. Size: M2-M100, 1/4-2-1/2 Standard: DIN127, ASTM, ISO Finish: white zinc plated, yellow zinc plated, blue zinc plated, Hot-dip galvanized, black oxide, plain, etc.
Type:Furniture Caster,Swivel Wheel place of origin:Handan, China Product name:caster wheels Material:Nylon/PVC/PU/carbon steel/stainless steel Load Capacity:10kgs Usage Wide Usage Packaging and delivery Packaging Details caster wheels,all goods simple pack in the carton with poly bag or as customer’s request
Flat Washer Material: carbon steel, stainless steel,brass, etc. Size: M2-M64, 1/4-2-1/2 Standard: DIN125,ASTM F436 ,ISO 7089,GB/T97 Finish: white zinc plated, yellow zinc plated, blue zinc plated, Hot-dip galvanized, plain,black oxide, etc.
Material Steel/Alloy/Bronze/Iron/ Carbon steel/etc Grade 4.8/ 6.8 /8.8 /10.9 /12.9 specification M0.8-M12 or 0#-1/2″ and we also produce according to customer’s requirement Standard ISO,DIN,JIS,ANSI/ASME,BS/Custom Color We can provide customized services according to your needs Surface Treatment We can provide customized services according to your needs Product Wheel / Lug Nut Mark According to customer’s requirement Package Cartons&pallets or according to customer’s requirement.
Structure of electric vehicle follow-up brake: It mainly includes components such as brake box, two brake shoes, crank, reset spring, adjusting parts, tension column, etc. Specifically, the working principle of the follow-up brake is to increase the rotation angle of the two brake shoes during braking through the setting of metal plates and reels, thereby increasing the maximum braking resistance. This structure achieves the adjustment of braking effect through two brake shoe blocks hinged on the hinge shaft fixed on the brake box, as well as adjusting components provided on the brake box on one side of the hinge shaft. In addition, the follow-up brake also has a lock that can lock the brake disc components, providing dust-proof and waterproof functions to ensure brake sensitivity
item value Shank Type smooth Head Style cylindrical head Place of Origin China Hebei Brand Name Dewell Model Number Customized Type welding screw Material carbon Steel Head Diameter 6mm-22mm
The window regulator motor is the power source of the window glass lifting system, responsible for driving the glass up and down. It is usually installed inside the car body or in the car door, connected to the window glass through steel wire ropes or guide rails, to achieve the control of the window lifting. The working principle of a motor is based on electromagnetic induction and changes in the direction of current. By changing the direction of current, the motor’s forward and reverse rotation can be controlled, thereby achieving the up or down movement of the car window. The start and stop of the motor are controlled by the switch inside the car, making it convenient for the driver to operate. In addition, in order to protect the motor, wire rope, and guide rail, a lubrication system is also installed in the system to provide lubricating oil for these components, reduce friction, and extend service life.
