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Hex Socket Cup Head Sem Stainless Steel Machine Screws Cold Forging Process

Categories Stainless Steel Machine Screws
Brand Name: HNF
Model Number: M4
Certification: ISO9001
Place of Origin: China
MOQ: 25000pcs
Price: Negotiation
Payment Terms: L/C, T/T, Western Union
Supply Ability: 1000000 pcs per month
Delivery Time: 10-15 days
Packaging Details: Small Box+Carton+Pallet
Material: Stainless steel
Type: sem machine screws
Size: M4*16 M4*12
Class: 304 316 A2 A4
Sample: Available
Standard: Fix Screws
Process: Cold Forging
Thread line: single line
Color: Plain or Passivation
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    Hex Socket Cup Head Sem Stainless Steel Machine Screws Cold Forging Process

    Hex Socket Cup Head Sem Stainless Steel Machine Screws Cold Forging Process


    The hexagonal head cap screws, also referred to as hexagon socket head bolts, cup head screws, and hexagon socket head screws, are not the same, but the meaning is the same. Commonly used hexagon socket head cap screws are also 4.8, 8.8, 10.9, 12.9. Also called a hexagon socket screw, also called a hexagon socket bolt. Its head is a hexagonal head and is also a cylindrical head. Divided into stainless steel and iron by material. Stainless steel is made of stainless steel SUS202 hexagon socket head cap screws. This is made of stainless steel. It is made of stainless steel SUS304 hexagon socket head cap screws and stainless steel SUS316 hexagon socket head cap screws. The iron has a hexagonal cylinder head screw strength grade. It has a 4.8-stage hexagon socket head cap screw, a 8.8-stage hexagon socket head cap screw, a 10.9-level hexagon socket head cap screw, and a 12.9-stage hexagon socket head cap screw. The 8.8-grade-12.9 hexagon socket head cap screws are called high-strength and high-grade hexagon socket head bolts. Standard No. StandardNo: GB/T 70.1-2008.


    NameA2-70 A4-80 Stainless steel hex socket cup head sem machine screws
    StandardCombination Screw, stainless steel Machine Screws
    MaterialSS304, SS316, SS201, SS667
    Length12MM 16MM
    Head shapescup Head
    Driver typesPhillips/Cross
    FinishPlain, Polish
    FeaturesGood corrosion-proof ability
    A2, A4

    Materials Available
    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 Availablebolts, 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 Finishannealing, natural anodization, heat treatment, polishing, nickel plating, chrome plating, yellow passivation, gold passivation, galvanizing, satin, etc.
    Processing Methodcnc machining, turning, milling, drilling, grinding, broaching, welding and assembly
    QC (inspection everywhere ):Technicians self-check in production
    offset distance±0.02mm
    PackageAs per customized specifications
    DescriptionHigh-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.


    1. Exclusive and unique solution can be provided to our customer by our well-trained and professional engineers and staff.
    2. Special discount and protection of sales are provided to our consumers.
    3. As an honest exported seller, we always use professional factory, quality quotation, good service, skilled technicians to ensure our products to be finished in high quality and stable feature.

    4. Reply you in 24 working hours.
    5. Experienced staffs would like to answer all your questions in time.
    6. Customized design is available. ODM&OEM are welcomed.

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