Galvanized hexagon socket bolt is a special type of fastener characterized by a fastener design consisting of a head and a screw. The outer edge of the screw head is circular, and the middle is a concave hexagon. This design makes hexagonal bolts particularly useful in applications that require limited space operation. Galvanizing treatment increases the corrosion resistance of bolts and is suitable for various environments, especially in humid or corrosive environments, providing additional protection and extending their service life.
The material for galvanized hexagonal bolts can be carbon steel or stainless steel, with stainless steel types including SUS304 and SUS202. According to the different shapes of the head, hexagon socket bolts can be divided into cylindrical head hexagon socket bolts, semi-circular head hexagon socket bolts, countersunk head hexagon socket bolts, etc. The head of the countersunk hexagonal bolt is flat, while the inside of the bolt is hexagonal. Headless hexagonal bolts, also known as payment screws, machine meter screws, tightening screws, etc., are a common type in specific applications. In addition, there is a relatively special type of flower shaped hexagonal screw, which is relatively rare in the market.
The production standards for hexagonal bolts follow certain specifications to ensure their quality and performance. For example, according to ASME B18.2.1 standard, hex cap screws are suitable for installation in all places where hex bolts can be used, including places where large hex bolts are too large to be used. This standard ensures the interchangeability and consistency of hexagonal bolts, enabling them to perform at their best in various applications.
The standards for galvanized hexagonal bolts mainly involve requirements for dimensions, materials, mechanical properties, surface treatment, thread tolerances, inspection methods, packaging marks, and other aspects. Specifically:
1.Size: The size of the hexagonal full threaded bolt should comply with the relevant provisions of GB/T196 and GB/T197. The specific size range and parameters can be found in the relevant appendix.
2.Material: The material of the hexagonal full thread bolt should meet the requirements for use, generally using high-quality carbon structural steel or alloy structural steel. Specific materials can be found in the relevant appendix.
3.Mechanical performance: The mechanical performance of hexagonal full thread bolts should comply with the relevant provisions of GB/T3098.1 and GB/T3098.2. Specific mechanical performance requirements can be found in the relevant appendix.
4.Surface treatment: The surface treatment of internal hexagonal full thread bolts should meet the requirements of the usage environment, generally including galvanizing, chrome plating, oxidation treatment, etc. Galvanizing is a common anti-corrosion measure that can increase the corrosion resistance of bolts.
5.Thread tolerance: The thread tolerance of hexagonal full threaded bolts should comply with the relevant provisions of GB/T197. The specific tolerance range can be found in the relevant appendix.
6.Inspection method: The inspection method for hexagonal full thread bolts should include visual inspection, dimensional inspection, mechanical performance testing, etc. The specific inspection method can be found in the relevant appendix.
7.Packaging label: The packaging label for hexagonal full thread bolts should be clear and easy to read, including product name, specifications, production date, manufacturer, and other information. Specific packaging labeling requirements can be found in the relevant appendix 1.
In addition, there are other relevant national and international standards, such as GB/T2-1985, GB/T90-1985, etc. These standards cover various technical requirements and testing methods for fasteners, providing comprehensive guidance for the design, production, inspection, and use of hexagonal bolts.
Galvanized hexagonal bolts have a wide range of applications, including but not limited to mechanical manufacturing, building decoration, automotive maintenance, and other fields.
In the field of mechanical manufacturing, galvanized hexagonal bolts are widely used in key parts of various mechanical equipment, such as gearboxes, bearing seats, etc., to connect and fix various components, ensuring the normal operation and safety of machinery.
In the field of construction and decoration, galvanized hexagonal bolts are commonly used to fix various materials such as plates and pipes, ensuring the stability and safety of building structures.
In the field of automobile maintenance, galvanized hexagon socket bolts are used to fasten body parts, engine components, etc., ensuring the performance and safety of automobiles.
The widespread application of galvanized hexagonal bolts benefits from their unique structure and advantages, including greater load-bearing capacity, the ability to be countersunk to maintain a flat and beautiful surface of the workpiece, easy installation, and resistance to disassembly. In addition, galvanizing treatment can increase the corrosion resistance of bolts, extend their service life, and be suitable for various environments and application scenarios.
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
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.
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
Product Name hexagon socket bolt screws Size m10x75 m6 m12 m8 m9 m12 m20 m29 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
Flat Head Self Drilling Screw, Csk Head Phillips Drive Self Drilling Screws Size:M3.5-M6.3 Length:25mm-50mm Material: carbon steel Finish: white zinc plated, blue zinc plated,etc.
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
Product Name Stainless Steel Threaded Rivet Nuts m10 m12 SS304 White Yellow Zinc Flat Head Sleeve Barrel Round Insert Nuts With Knurled Body Size M3-M12 Material Carbon Steel,Stainless Steel,Aluminum Surface Treatment Plain, black, zinc plated/according to your requirement Standard DIN GB ISO JIS BA ANSI Grade SUS201, SUS304, SUS316, A2-70, A2-80, A4-80, 4.8 6.8 8.8 10.9 12.9 Quality Policy All the parts manufactured 100% inspection from OQC before shipping. Thread Coarse, fine Used Building industry machinery,etc Non-standards OEM is available, according to drawing or samples
Hexagonal Self-drilling screw Diameter: 4.8mm, 5.5mm,6.3mm(10#,12#,14#), etc. Length: 16-300mm Material: carbon steel, stainless steel, etc. Finish: white zinc plated, yellow zinc plated, blue zinc plated, etc.
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 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
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
Product Name Nylon lock Nut Grade: 4.8,8.8,10.9,12.9 Size: M4–M100 Surface treament: Black,zinc plated,zinc(yellow)plated,H.D.G etc,Dacroment Material: Carbon steel,alloy steel,stainless steel,ec
Product name All thread Payment method L/C, D/A ,D/P ,T/T, Wester Union,MoneyGram Availability 20000 tons per month Packing method Wooden cases
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.
Metal Stamping parts products Can be made into different size according to customer’s requirements. Material: carbon steel, stainless steel,aluminum,copper,etc. Finish: white zinc plated, blue zinc plated, etc.
