Supply of hexagonal flange drilling screws, hexagonal dovetail self tapping and self drilling screws

"Anchor bolt editing and broadcasting
Nicknames include reinforced anchor plate anchor bolts, welded anchor bolts, anchor claw type anchor bolts, reinforcement plate anchor bolts, anchor bolts, anchor screws, anchor wires, etc. Specially designed for embedding in concrete foundations as a base for fixing various machines and equipment. The 7-shaped anchor bolt is a commonly used type of anchor bolt. Generally made of Q235 steel, high-strength products are processed using Q345B or 16Mn materials, as well as products with grade 8.8 strength using 40Cr materials. Occasionally, secondary or tertiary threaded steel is also used for processing. Anchor bolts can be divided into different forms: rough material, thick rod, and thin rod. Raw material refers to the raw material of steel, which is directly processed from round steel or wire without modification; The thick rod, also known as A-type, and the thin rod, also known as B-type, are all made of steel modified to the required diameter and processed. Welding type anchor bolts are made by welding a single head bolt to a stiffening iron plate. It has strong resistance to pulling. Depending on the conditions of use, it can reach levels such as 3.6, 4.8, 6.8, and 8.8. The tensile strength of grade 3.6 7-shaped anchor bolts is the tensile strength of the steel itself. The anchor bolts directly processed with Q345B or 16Mn raw materials have a tensile strength of 5.8 levels. The tensile strength of grades 4.8, 5.8, 6.8, and 8.8 shall refer to the provisions for mechanical properties in GB/T3098.1"

The national standard name for cross recessed small pan head three combination screws is the combination of cross recessed small pan head screws, spring washers, and plain washers. The national standard number is GB/T9074.8-1988. This 1988 refers to the year, which means that this standard was issued by the country in 1988. Our company's minimum specification for cross recessed small pan head three combination screws is M2.5, with a minimum of 5mm, a maximum of M10, and a maximum of 90mm. Of course, as customers increasingly demand small pan head combination screws, or require smaller and longer combination screws. If the quantity is large, it may grow with the development of our company. Purchase some advanced combination screw machines. Come and meet the higher requirements of our customers.

"The meaning of bolt performance grade is an internationally recognized standard. Bolts with the same performance grade, regardless of their material and origin, have the same performance, and only the performance grade can be selected for design.
The so-called strength levels of 8.8 and 10.9 refer to the shear stress levels of bolts, which are 0.88GPa and 1.09GPa. The nominal tensile strength of bolts is 800N/MM2, and the nominal yield strength is 640N/MM2. Generally, bolts are represented by ^ ^ ^ X. Y ^ ^ ^ ^ ^ ^, and X * 100=the tensile strength of this bolt, X * 100 * (Y/10)=The yield strength of this bolt (as specified by the label: yield strength/tensile strength=Y/10, i.e. 0. Y is the yield strength ratio). If the grade is 4.8, the tensile strength of this bolt is: 400MPa; The yield strength is 400 * 8/10=320MPa. In addition, stainless steel bolts are usually marked as A4-70 and A2-70, and the meaning is explained in another way: there are two main Unit of measurement of length in the world today, one is the metric system, and the Unit of measurement are meters (m), centimeters (cm), millimeters (mm), etc., which are widely used in Europe, China, Japan and other Southeast Asian regions, and the other is the British system, and the Unit of measurement is mainly inches (inch), which is widely used in the United States, the United Kingdom and other European and American countries. 1. Metric measurement: (10 decimal) 1m2=100 cm2=10000 mm2, English measurement: (8 decimal) 1 inch=8 inches 1 inch=25.4 mm 3/8 inch × Products with a size of less than 25.4=9.523 and 1/4 inch are referred to by their designation, such as: 4 #, 5 #, 6 #, 7 #, 8 #, 10 #, 12#"

"Headline Editing Broadcast
1. Hexagon head 2. Hexagon head with flange 3. Square head 4. T-head T head (hammer head) 5. Flat round head Mushroom head (truss head) 6. Cheese head 7. Round head 8. Pan head 9. Countersink head (flat head) 10. Raised countersink head (oval"

Flat washers are usually thin pieces of various shapes used to reduce friction, prevent leakage, isolate, and prevent loosening or dispersion of pressure. Many materials and structures contain this component, which is used to perform various similar functions. Due to the material and process limitations of Threaded fastener, the bearing surface of bolts and other fasteners is not large, so in order to reduce the pressure stress of the bearing surface and protect the surface of the connected parts, gaskets are used. To prevent the loosening of the connecting pair, anti loosening spring washers, multi tooth lock washers, round nut stop washers, and saddle, waveform, and conical elastic washers are used.