| Standard | GB, DIN, ISO, ASTM, ASME, UNC,BSW |
| Size | M3-M50 or non-standard as request&design
1/4″,1/2″, 1-1/2″, 5/16″,7/16″, 5/8″, 1-1/4″, 3/4″, 3/8″, 1″ |
| Material | Carbon steel, stainless steel, alloys steel etc. |
| 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 |
Galvanized hex bolt is a metal accessory, also known as hex screw, hex bolt or hex bolt. It is a common fastener widely used in various fields. The surface treatment method for galvanized hexagonal bolts includes galvanizing, which is a corrosion-resistant treatment method that covers the bolt surface with a zinc layer to prevent corrosion and oxidation of the bolt. The methods of galvanizing include hot-dip galvanizing and electroplating galvanizing, among which hot-dip galvanizing is widely used due to its better corrosion resistance. This processing method not only improves the corrosion resistance of the bolts, but also extends their service life.
The grade and performance of galvanized hexagonal bolts mainly depend on their material and application environment. For example, 4.8 grade galvanized hexagon bolts are a common specification, where the number represents the tensile strength of the bolt, and "grade" refers to its hardness level after heat treatment. This type of bolt is typically used in applications that require high strength and corrosion resistance.
1、 Overview of galvanized hexagonal material
Galvanized hexagonal bolt is a compact, high-strength, and high-precision hexagonal bolt. Carbon structural steel or alloy structural steel is generally used as the substrate, and after galvanizing treatment, galvanized hexagonal bolts are formed. Common substrates include Q195, Q235, 20MnTiB, 40Cr, etc.
Galvanizing treatment is the process of immersing bolts in a molten zinc aqueous solution and conducting electrochemical reactions using electricity to precipitate zinc ions on the surface of the bolt, forming a layer of zinc iron alloy. This treatment method can effectively improve the corrosion resistance and durability of the bolt.
2、 Application Fields of Galvanized Hexagon
Galvanized hexagonal bolts are widely used in industrial production and construction fields. Galvanized hexagonal bolts are commonly used in mechanical equipment manufacturing to connect steel components, bearings, and machine tools. In the field of construction, galvanized hexagonal bolts are mainly used to connect steel structures, bridges, and highway guardrails.
Due to its high anti-corrosion, wear resistance, and tensile strength, as well as long service life, galvanized hexagonal bolts have been favored by engineers and builders. Meanwhile, galvanized hexagonal bolts can also be customized in different specifications and sizes to meet the needs of different engineering and construction projects.
The standards for galvanized hexagonal bolts include DIN, ANSI, BS, and GB, which cover aspects such as bolt diameter, length, thread type, and mechanical properties. Specifically:
The diameter range is from 5mm to 20mm, or 1/4 "to 3/4".
The length can range from 8mm to 200mm, or from 5/16 "to 8".
Threads can be in metric, imperial, and different pitch sizes, such as coarse and fine threads.
Mechanical performance levels include 4.8, 5.8, 6.8, 8.8, 9.8, 10.9, 12.9, etc.
Surface treatment can include natural color, galvanizing, blackening, nickel plating, etc.
-dewell fastener factory provides bolt and nut.washer.Metal Stamping products.Caster wheels.lifti...
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.
Products Socket Head Cap Screws Material carbon steel, stainless steel, Alloy Steel . Standard DIN912 /ISO4762 Diameter M2-M48 Length 4mm-400mm Pitch 0.4mm 0.45mm 0.5mm 0.7mm 0.8mm 1mm 1.25mm 1.5mm 1.75mm 2.0mm 2.5mm 3.0mm Finish Zinc Plated .Black Oxide,etc. Grade 4.8, 8.8 Grade. 10.9 Grade.12.9 Grade Head Type Cylindrical Hexagon Socket Cap Head Thread Type Fully Threaded , Partially Thread Features Exceptional strength and durability,High Tensile ,Corrosion-resistance Abrasion-resistance .Anti-rust.Easy installation Application Ideal for use in automotive.construction. Machinery.and other industries fastening applications where high-strength fasteners are needed Packing Poly bags.Box.Cartons.Wooden Pallets
Product Name U-bolt Package BAG/BOX Grade 4.6,4.8,5.6,6.8,8.8,9.8,10.9,12.9,etc Available Material 304 stainless steel,plastic,brass,carbon steel,titanium,aluminum,etc Surface treatment Zinc plated,Black oxide,Phosphate,Dacroment,etc Standard ISO,BS,ANSI, GB,DIN,JIS,Nonstandard Advantage OEM / ODM / customized service provided Quality control ISO standard,100% Whole range inspection through the production Certificate ISO9001,ISO14001,IATF16949,ROHS,etc
A double-stacked self-locking washer is a special mechanical connector designed to prevent bolts from loosening, especially in high-vibration or high-load environments.It consists of two spring washers nested inside each other in an S-shaped configuration. The outer spring washer has ends that bend inwards, while the inner spring washer has ends that bend outwards, creating a two-way self-locking feature.The working principle of this washer is based on elastic deformation. When placed between connecting parts, the inner curved part of the outer spring ring interlocks with the outer curved part of the inner spring ring, creating a locking force that prevents the connecting parts from loosening under vibration or load.The advantages of the double-stacked self-locking washer include high reliability, easy installation, and a wide range of applications.It is suitable for various mechanical connections, such as threaded connections and pin connections, and is widely used in industrial production and machinery manufacturing, especially in the automotive manufacturing process, where it is often used to connect engine and chassis systems to improve the safety and reliability of the car.
item value Finish ZINC, Plain Material Stainless steel, Steel Place of Origin China Guangdong Brand Name yufu Model Number 20231214 Standard DIN Product name Bolt Standard Din933/Iso/Customized Grade 4.8/ 8.8/ 10.9/ 12.9 Ect Color Customized Colors MOQ 1000pcs Application Industry Size Customized Size Certificate ISO9001:2015 Delivery time 7-15 Working Days Port Shenzhen Port
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.
