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DIN 7991 Stainless Steel M3-M24 Hexagon Socket Countersunk Head Screws Machine Screws

DIN 7991 Stainless Steel M3-M24 Hexagon Socket Countersunk Head Screws Machine Screws

    • DIN 7991 Stainless Steel M3-M24 Hexagon Socket Countersunk Head Screws  Machine Screws
    • DIN 7991 Stainless Steel M3-M24 Hexagon Socket Countersunk Head Screws  Machine Screws
    • DIN 7991 Stainless Steel M3-M24 Hexagon Socket Countersunk Head Screws  Machine Screws
    • DIN 7991 Stainless Steel M3-M24 Hexagon Socket Countersunk Head Screws  Machine Screws
  • DIN 7991 Stainless Steel M3-M24 Hexagon Socket Countersunk Head Screws  Machine Screws

    รายละเอียดสินค้า:

    Place of Origin: China
    ชื่อแบรนด์: HNF
    ได้รับการรับรอง: ISO9001
    Model Number: M8 M10 M12

    การชำระเงิน:

    Minimum Order Quantity: 15000 pcs
    ราคา: Negotiation
    Packaging Details: Common export packing. Carton: 25X25X17, 36cartons/Pallet, or customized packing
    Delivery Time: 5-15 days
    Payment Terms: L/C, T/T, Paypal, Western Union
    Supply Ability: 1000000pcs per month
    ติดต่อตอนนี้
    รายละเอียดสินค้า
    Model NO: DIN 7991 ISO10642 Head Drive: Hexagon socket countersunk head
    Diameter: M8 M10 M12 Thread Type: Coarse
    Pitch: Metric Picth Grade: 304 316 A2 A4 18-8
    Color: Silver Name: Socket Cap Screws
    Material: stainless steel A2-70 A4-80 Technique: Cold Heading

    DIN 7991 Stainless Steel M3-M24 Hexagon Socket Countersunk Head Screws Machine Screws


     
    Description:

     

    Hexagon Socket Countersunk Head Screws Machine Screws, which are also called hex bolts, cup head screws, socket head cap screws, its not the same name, but represent the meaning is the same. Commonly It is called hexagon socket head screws. Also called SHCS , also called hex bolts. Its head is hex head, cylinder head also.Socket cap screws are a headed and externally threaded part designed for insertion through a close tolerance, internally tapped hole and mated with a nut. Tension on the socket cap screw is induced by rotation of the screw head. There is a hex socket in the head that accepts a hex wrench to tighten the socket cap screw. The point at the threaded end of the socket cap screw is machined flat so it will fit into a drilled hole . Flat head socket cap screws are similar in design to a button head.
    On the upper surface of the connector mounting hole formed with a 90 degree cone with a circular hole, flat head machine screws in this round nest, and fittings flush with the surface. Flat machine screws in some cases also have flat round head machine screws used in this screw more beautiful, the surface may allow for a few prominent place.
    Screw plays a role in connecting two or more objects in daily life or industrial manufacturing indispensable necessity.
    Shen head screws (slotted), countersunk head bolts (with tongue)
    Material stainless steel and iron. There are stainless steel SUS202 stainless steel hexagon socket head cap screws, this is an ordinary stainless steel material, there are stainless steel SUS304 hexagon socket head cap screws with stainless steel SUS316 hexagon socket head cap screws.
    The most common stainless steel for general hardware use is stainelss steel 304, which is also called stainless steel 18-8.Stainless steel 316 is A highly corrosion resistant grade of stainless steel. Ideal in salt water and chlorine environments. More expensive than 18- 8.
    Flat head countersunk socket cap screws DIN 7991 are not intended for high strength application. The purpose of producing them with a strength of the property class 10.9 is to increase the wear resistance of the sockets. Insert the key into the socket and apply the torque on the nut while holding the key. Should however, the torque be applied on the screw itself it should be reduced accordingly.

     

    Specification:

     

    Standard DIN 7991 Stainless Steel M3-M24 Hexagon Socket Countersunk Head Screws Machine Screws
    Material Stainless Steel
    Size M3-M24
    Head Type Socket
    Drive Allen
    Class SS304 SS316
    Delivery Lead Time 7-25 workdays
    Application
    1. Machinery 2.Stationary 3.Architecture 4.Hardware and Plastic Molds 5.Electric Appliance
    Sample FREE SAMPLE 
    Test Equipments metallography microscope, electrolytic thickness gauge, tensile testing machine, salt spray device, magnetic detection machine(magnetic particle flaw detector), Caliper, Go&No-go gauge and etc.

     

     

     

     

    DIN 7991 Stainless Steel M3-M24 Hexagon Socket Countersunk Head Screws  Machine Screws

     

     

    Application:

    Countersunk head screws mostly used in the need to install a raised surface of the part can not place the fastening parts there are two kinds of thickness, the so-called thick, that is fastened to the parts is greater than the thickness of the head of the countersunk head screw thickness after tightening the screw, there is no part of the screw threaded into the threaded hole. This situation, certainly countersunk head screws tightened. Typically there is a situation that is fastened to the part thickness smaller than the height countersunk screw head, which is common in sheet metal parts in machinery and equipment, such as a hinge and the cabinet doors and the coupling of the chassis; sheet metal equipment housing and coupling devices and so on. Due to the small thickness of the part, are fastened sheet metal parts, screws vias completely into a conical bore, in this case, when the countersunk screw is tightened, the screw head is not pressed sheet metal cone , but the top of the screw head and a threaded hole at the bottom of the root Jisi, although the feeling screw is tightened, but the sheet metal is pressed instead of being stuck in this situation, although feeling tighten the screws, but the sheet metal parts really have not been tightened. This is a very common situation.
    To tell you the reason for working on: countersunk screw head round vertebrae was 90 ° cone angle, usually bought a new drill apex angle was 118 ° -120 °, the lack of training of some of the workers do not know the angle difference, one often the direct use of reaming drill 120 °, which resulted in not Shen head screws tighten head conical surface difficult, but the bottom line of the screw head is difficult, which is the so-called head screws tight could not reason

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    6. We can provide material test certificate.


    More pictures

     

    DIN 7991 Stainless Steel M3-M24 Hexagon Socket Countersunk Head Screws  Machine Screws

     



     

     

     

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    Jiaxing Haina Fastener Co.,Limited

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