How to clean high strength galvanized bolts? Generally, when high strength galvanized bolts are cutting and cold heading, there will be cooling oil on the outer surface of the fasteners, and there will be residual oil on the outer surface of the fasteners after quenching in the heat treatment oil, which will be attached on [...]
Today, We will introduce the classification of high strength bolts. According to the stress state, high strength bolts can be divided into friction type and pressure bearing type. In fact, there are differences in design and calculation methods. The ultimate bearing capacity of friction type high-strength bolts is the sliding between plates; The bearing capacity [...]
Proper maintenance of high strength hexagon bolts? When high strength hexagon bolt is used, it needs to cooperate with the nut to play the role of fastening. If its packaging, transportation and storage methods are improper, it is easy to cause the thread to be crushed and the bolt surface to rust and corrode. Let's [...]
Application of super long bolt With the development of large-scale and large-scale infrastructure, more and more large-diameter, overweight and super long bolts are used. In order to make sure that the bolt is used quickly and accurately, we need to pay attention to several points. 1. The operation platform must be fixed reliably without obvious [...]
How to reduce the rust of high strength hot dip galvanized bolts? What measures can be taken to reduce the rust probability of high strength hot dip galvanized bolts? High strength hot-dip galvanized bolts in the production of processing surface, hot-dip galvanizing process will be carried out on the surface, which can enhance the anti [...]
The difference between hexagon bolt and screw Hexagon bolts and screws are commonly used fasteners, which are very common in our life. Their main function is to connect and fix them. However, many people can't tell the difference between them, or even confuse them. Today we will explain the differences between them. Differences between hexagon [...]
High Tensile Bolt 10.9 High Tensile 10.9 Half Threaded Bolts, ASTM F568 Grade 10.9 Bolts, High Tensile 10.9 Metric Bolts, Grade 10.9 Hex Bolts Supplier, Class 10.9 Full Threaded Bolts Manufacturer, Gr 10.9 High Tensile Fasteners, High Tensile Bolt 10.9 in China High Tensile 10.9 Elevator Bolt, High Tensile 10.9 Anchor Bolt, Grade 10.9 High [...]
Guide to Threaded Fasteners According to SAE International, fastener experts believe upwards of 95% of all fastener failures are the result of either the wrong fastener for the job or improper installation. It’s important for those working in the engineering and construction industries to be aware of the different types of threaded fastener and be [...]
There are three kinds of materials for high strength hexagon bolts, as follows: (1) carbon steel. Generally, hexagonal bolt manufacturers distinguish low carbon steel, medium carbon steel, high carbon steel and alloy steel according to carbon content in carbon steel. 1. Low carbon steel C% ≤ 0.25% is usually called A3 steel in China. It [...]
Introduction to High strength external hexagon combination screw for buildings and workshops: High strength external hexagon combination bolt for steel structure is mainly used in railway and highway bridge, boiler steel structure, industrial workshop, high-rise civil building, tower and mast structure, hoisting machinery and steel structure where friction type high-strength bolt combination screw is required. [...]
Which materials of High strength hexagon bolts? they are made of three kinds of materials. The details are as follows: Carbon steel: Generally, hexagonal bolt manufacturers distinguish low carbon steel, medium carbon steel, high carbon steel and alloy steel according to carbon content in carbon steel. 1. Low carbon steel C% ≤ 0.25% is usually [...]
The identification method of high strength national standard bolt mainly depends on five aspects: Look at the mark. Generally, the packing box of bolts has identification. It can be divided into 8.8, 10.9 and 12.9 grades. In general, there is no grade mark on the hexagonal plane of hexagon bolt, which is a common grade, [...]
As for the process of high strength blackening bolt, it is a blackening treatment process at room temperature, which can be divided into the following procedures. The first step is to clean the surface of high strength bolts. After that, the degreasing process is started. The high strength bolt must be completely immersed in the [...]
The countersunk hexagon bolt is often used in machinery, which has the advantages of easy fastening, disassembly and not easy to slide angle. The hexagon wrench is generally a 90 ° bend, one end of the bend is long and the other side is short. When the short side is used to bolt, holding the [...]
The installation and use of hexagon head bolts are directly related to the quality and service life of fasteners, and the safety of bolts is the primary consideration. The main factors affecting the hexagon head bolt: the selection of material, thickness of steel plate, processing and cutting, surface coating and installation of steel structure shall [...]
Galvanized Steel Hex Bolts and Nuts DIN933 Product Name Hexagon Bolt Material stainless steel/carbon steel Size Dia.:5mm~20mm,1/4″~9/16″;:L:8mm~200mm,5/16″~8″ Standard DIN GB ISO JIS BA ANSI Grade 4.8 6.8 8.8 10.9 12.9 Finish plain, zinc plated, black oxide, black phosphated Thread standard Used building industry machinery Galvanized Steel Hex Bolts and Nuts DIN933 FAQ 1.Why [...]
Product name DIN 6914 Heavy Hex Bolt Black Finish Standard DIN 6914 Material Carbon Steel, Alloy Steel, Stainless Steel etc. Size M12-M42 Class Gr.10.9 Surface Treatment Plain, Black Oxide, Zinc Plated(Yellow), H. D. G. etc. Delivery Lead Time Generally 30-45 workdays Certificate ISO9001:2008 Package 25kgs per BOX, 36 boxes per Pallet Sample FREE SAMPLE will [...]
DIN 6914 – Hex Bolts For High Strength Struct. Bolting manufacturers & suppliers in China, Carbon Steel/ Alloy Steel/ Stainless Steel DIN 6914 – Hex Bolts For High Strength Struct. Bolting manufacturers in China ISO 9001:2008 Certified Manufacturer & Suppliers Of SS DIN 6914 – Hex Bolts For High Strength Struct. Bolting ,DIN 6914 Hex [...]
ASTM A193 Alloy Steel Bolts WINDO METAL Inc. is your source for ASTM A193/A320 Alloy Steel Bolts from 3/8” to 4” Diameter in a wide variety of lengths, thread lengths and finishes Hot Dip Galvanized, Mechanical Galvanized, Zinc Plated, Yellow Zinc Plated, Cadmium Plated, Yellow Cadmium Plated, Blue Xylan® , Blue Teflon®, Green Xylan®, Green [...]
ASTM A325 is an ASTM International standard for heavy hex structural bolts, titled Standard Specification for Structural Bolts, Steel, Heat Treated, 120/105 ksi Minimum Tensile Strength. It defines mechanical properties for bolts that range from 1⁄2 to 1 1⁄2 inches (13 to 38 mm) in diameter. The equivalent metric standard is ASTM A325M, which is [...]