|B1306 Landmark Plaza No.1238 Hongxing Road JiaXing , ZheJiang , China email@example.com|
|Place of Origin:||China|
|Minimum Order Quantity:||Negotiation|
|Packaging Details:||Small Box+Carton+Pallet|
|Delivery Time:||10-15 days|
|Payment Terms:||L/C, T/T, Western Union|
|Supply Ability:||1000000 pcs per month|
|Material:||Stainless Steel||Type:||Sem Machine Screws|
|Size:||M2-M32||Class:||A2 A4 4.8 8.8|
|Sample:||FREE||Standard:||DIN, GB, ISO, ANSI,|
|Process:||Cold Forging||Thread Line:||Single Line|
|Color:||Plain Or Passivation||Head Type:||Pan Head|
bolts and nuts
Pan Head Stainless Steel 304 316 Hexagon Socket Machine Screws
Combination screw and common screw use difference mainly lies in the use of the extensive, common screw use than combination screw more extensive, basically industrial products are used to the general screw, combination screw!It is on specific product material only useful obtain.When the screw needs to use spring pad and flat pad, it can be used for combination screw.
A lot of national standard, can have the division of intensity grade.Combination screws are no exception.The strength grade of combination screw is divided according to the material of screw wire and the hardness index of screw wire.General combination screw material is divided into stainless steel and iron, stainless steel is divided into stainless steel 201, 304 and 316, etc.Iron can be divided into low carbon steel, medium carbon steel, high carbon steel.
|1. Stainless Steel: SS201, SS303, SS304, SS316, SS416, SS420|
|2. Steel:C45(K1045), C46(K1046),C20|
|3. Brass:C36000 ( C26800), C37700 ( HPb59), C38500( HPb58), C27200(CuZn37), C28000(CuZn40)|
|5. Iron: 1213, 12L14,1215|
|5. Aluminum: Al6061, Al6063|
|6.OEM according to your request|
|Products Available||bolts, screws, nuts, rivets, stem nuts, shafts(axles, spline shafts, dart shafts),gears (pinions, wheels ) bearing, bearing seat, spring, connector, socket, bushing, push-button, etc.|
|Surface Finish||annealing, natural anodization, heat treatment, polishing, nickel plating, chrome plating, yellow passivation, gold passivation, galvanizing, satin, etc.|
|Processing Method||cnc machining, turning, milling, drilling, grinding, broaching, welding and assembly|
|QC (inspection everywhere ):||Technicians self-check in production|
|Package||As per customized specifications|
|Description||High-quality, rich manufacturing experience|
The first is the hardness of the hexagon socket head cap screws:
Hexagon socket head cap screws are classified according to the tensile strength, yield strength and hardness of the screw wire. So to a certain extent, the bolts are of a number of materials, and the same screws are required for the selected screws. Generally speaking, the hexagonal bolts can be divided into two types according to the grade strength. One is common and the other is high strength. The ordinary hexagon socket bolts are usually 4.8, while the high-strength hexagon socket bolts refer to The above grade 8.8 is called a high-strength bolt. Among them, the 12.9 grade hexagon socket bolts are knurled and the color is natural.
The second is the performance requirements of the hexagon socket head cap screws:
The material of the hexagon socket screw can reach 400MPa in tensile strength, the yield ratio of the screw material is 0.6, and its nominal yield strength can reach 240MPa. The high-strength hexagon socket head cap screws with a performance class of 10.9 have a nominal tensile strength of 1000 MPa, a screw yield ratio of 0.9, and a nominal yield strength of the screw of 900 MPa. In general, the hexagon socket head cap screws are all internationally accepted. The same grade of screws, regardless of its thoroughness and material quality, is identical in performance. Be careful not to smash the head of the hex screw during use.
The third is the use of hexagon socket head cap screws and other specifications:
The hexagon socket head cap screw is very similar to the countersunk head screw. When the nail head penetrates into the machine part, its connection strength is very large, so the corresponding size of the hex wrench must be used during use. The screws are attached and detached. Generally used in a variety of machine tools and its accessories, the international standard for hexagon socket head screws is GB70-1985. The common specifications are 4*30, 4*35, 4*45, 5*10. , 5*12, 5*16, 5*20, 5*25, 6*12, 6*14, 6*16, 6*25, 8*14, etc.
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6. Customized design is available. ODM&OEM are welcomed.
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