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M52 DIN960 CL12.9 Partially Threaded Machine Screws

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    Buy cheap M52 DIN960 CL12.9 Partially Threaded Machine Screws from wholesalers
     
    Buy cheap M52 DIN960 CL12.9 Partially Threaded Machine Screws from wholesalers
    • Buy cheap M52 DIN960 CL12.9 Partially Threaded Machine Screws from wholesalers
    • Buy cheap M52 DIN960 CL12.9 Partially Threaded Machine Screws from wholesalers
    • Buy cheap M52 DIN960 CL12.9 Partially Threaded Machine Screws from wholesalers
    • Buy cheap M52 DIN960 CL12.9 Partially Threaded Machine Screws from wholesalers

    M52 DIN960 CL12.9 Partially Threaded Machine Screws

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    Brand Name : QBH
    Model Number : DIN960 M4-M52
    Certification : ISO9001
    Price : Negotiation
    Payment Terms : L/C, T/T,OA
    Supply Ability : 600TON/MONTH
    Delivery Time : 30days
    • Product Details
    • Company Profile

    M52 DIN960 CL12.9 Partially Threaded Machine Screws

    Specification

    DIN 960 Hex Head Bolts are partially threaded bolts with fine and extra fine external machine screw threads (the space between fine and extra fine threads is less than coarse, wider-spaced threads). Mated with internally threaded holes and nuts, they are similar to ISO 8765 except for some dimensional differences. Available in Class 8.8 and 10.9 steel, zinc plating inhibits the formation of rust while plain finish does not have any corrosion protection. Thread tolerance for Class 8.8 and 10.9 is 6g for plain finish and 6h for plated; right-hand threads are standard. Also called hex head cap screws, the bolt diameter and bolt length determine the minimum threaded length. The bolt's length is measured from under the head to the tip. DIN 960 Hex Head Bolts are similar to ISO 8765 and JIS B1180. Use DIN 961 instead when fully threaded is required and DIN 931 for partially threaded coarse threads.

    DIN 960 - Partially Threaded Hex Cap Screw (Fine Thread)

    Current norm: DIN EN 28765
    Equivalent norms: ISO 8765; CSN 021101; PN 82101; UNI 5738; EU 28676;

    M52 DIN960 CL12.9 Partially Threaded Machine Screws

    Legend:

    l - length of bolt

    Makings:QBH

    Steel: 5.6,5.8,8.8,10.9,12.9
    Stainless: A2,A4
    Plastic: -
    Non Ferrous: Brass
    Thread: 6g


    DIN960

    Screw Thread
    d
    M8 M10 M12 (M14) M16 (M18) M20 (M22) M24 (M27) M30 (M33) M36 (M39)
    P Pitch Fine thread-1
    Fine thread-2
    b L≤125
    125＜L≤200
    L＞200
    c min
    max
    da max
    ds max
    Grade A min
    Grade B min
    dw Grade A min
    Grade B min
    e Grade A min
    Grade B min
    k Nominal Size
    Grade A min
    max
    Grade B min
    max
    k1 min
    r min
    s max=nominal size
    Grade A min
    Grade B min
    1 1 1.5 1.5 1.5 2 1.5 2 2 2 2 2 3 3
    - 1.25 1.25 - - 1.5 2 1.5 1.5 - - - - -
    22 26 30 34 38 42 46 50 54 60 66 72 78 84
    28 32 36 40 44 48 52 56 60 66 72 78 84 90
    41 45 49 53 57 61 65 69 73 79 85 91 97 103
    0.15 0.15 0.15 0.15 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.3
    0.6 0.6 0.6 0.6 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 1
    9.2 11.2 13.7 15.7 17.7 20.2 22.4 24.4 26.4 30.4 33.4 36.4 39.4 42.4
    8 10 12 14 16 18 20 22 24 27 30 33 36 39
    7.78 9.78 11.73 13.73 15.73 17.73 19.67 21.67 23.67 - - - - -
    7.64 9.64 11.57 13.57 15.57 17.57 19.48 21.48 23.48 26.48 29.48 32.38 35.38 38.38
    11.6 15.6 17.4 20.5 22.5 25.3 28.2 30 33.6 - - - - -
    11.4 15.4 17.2 20.1 22 24.8 27.7 29.5 33.2 38 42.7 46.6 51.1 55.9
    14.38 18.9 21.1 24.49 26.75 30.14 33.53 35.72 39.98 - - - - -
    14.2 18.72 20.88 23.91 26.17 29.56 32.95 35.03 39.55 45.2 50.85 55.37 60.79 66.44
    5.3 6.4 7.5 8.8 10 11.5 12.5 14 15 17 18.7 21 22.5 25
    5.15 6.22 7.32 8.62 9.82 11.28 12.28 13.78 14.78 - - - - -
    5.45 6.58 7.68 8.98 10.18 11.72 12.72 14.22 15.22 - - - - -
    5.06 6.11 7.21 8.51 9.71 11.15 12.15 13.65 14.65 16.65 18.28 20.58 22.08 24.58
    5.54 6.69 7.79 9.09 10.29 11.85 12.85 14.35 15.35 17.35 19.12 21.42 22.92 25.42
    3.54 4.28 5.05 5.96 6.8 7.8 8.5 9.6 10.3 11.7 12.8 14.4 15.5 17.2
    0.4 0.4 0.6 0.6 0.6 0.6 0.8 0.8 0.8 1 1 1 1 1
    13 17 19 22 24 27 30 32 36 41 46 50 55 60
    12.73 16.73 18.67 21.67 23.67 26.67 29.67 31.61 35.38 - - - - -
    12.57 16.57 18.48 21.16 23.16 26.16 29.16 31 35 40 45 49 53.8 58.8
    Weight of per 1000 steel products(≈kg)
    - - - - - - - - - - - - - -
    Length of Thread b
    - - - - - - - - - - - - - -
    Screw Thread
    d
    M42 (M45) M48 (M52) M56 (M60) M64 (M68) M72 (M76) M80 M90 M100
    P Pitch Fine thread-1
    Fine thread-2
    b L≤125
    125＜L≤200
    L＞200
    c min
    max
    da max
    ds max
    Grade A min
    Grade B min
    dw Grade A min
    Grade B min
    e Grade A min
    Grade B min
    k Nominal Size
    Grade A min
    max
    Grade B min
    max
    k1 min
    r min
    s max=nominal size
    Grade A min
    Grade B min
    3 3 3 3 4 4 4 4 4 4 4 4 4
    - - - - - - - - - - - - -
    90 96 102 - - - - - - - - - -
    96 102 108 116 124 132 140 148 158 164 172 192 -
    109 115 121 129 137 145 153 161 169 177 185 205 225
    0.3 0.3 0.3 0.3 - - - - - - - - -
    1 1 1 1 1 1 1 1 1 1 2 2 2
    45.6 48.6 52.6 56.6 63 67 71 75 79 83 87 97 108
    42 45 48 52 56 60 64 68 72 76 80 90 100
    - - - - - - - - - - - - -
    41.38 44.38 47.38 51.26 55.26 59.26 63.26 67.26 71.26 75.26 79.26 89.13 99.13
    - - - - - - - - - - - - -
    59.9 64.7 69.4 74.2 78.7 83.4 88.2 92.9 97.7 102.4 107.2 121.1 135.4
    - - - - - - - - - - - - -
    71.3 76.95 82.6 88.25 93.56 99.21 104.86 110.51 116.16 121.81 127.46 144.08 161.03
    26 28 30 33 35 38 40 43 45 48 50 57 63
    - - - - - - - - - - - - -
    - - - - - - - - - - - - -
    25.58 27.58 29.58 32.5 34.5 37.5 39.5 42.5 44.5 47.5 49.5 56.4 62.4
    26.42 28.42 30.42 33.5 35.5 38.5 40.5 43.5 45.5 48.5 50.5 57.6 63.6
    17.9 19.3 20.9 22.8 24.2 26.2 27.6 29.8 31.2 33.2 34.6 39.5 43.7
    1.2 1.2 1.6 1.6 2 2 2 2 2 2 2 2.5 2.5
    65 70 75 80 85 90 95 100 105 110 115 130 145
    - - - - - - - - - - - - -
    63.1 68.1 73.1 78.1 82.8 87.8 92.8 97.8 102.8 107.8 112.8 127.5 142.5
    Weight of per 1000 steel products(≈kg)
    - - - - - - - - - - - - -
    Length of Thread b
    - - - - - - - - - - - - -

    Process flow

    Cold forging

    Annealing treatment(if need) ➨ wiredrawing ➨ clod forging ➨ thread rolling ➨make heat treatment(if need) ➨ Finish ➨ Packing

    Hot forging

    Cutting material ➨ hot forging ➨ turning ➨ shrink diameter(half thread) ➨thread rolling ➨ make heat treatment(if need) ➨ Finish ➨ Packing

    Mechanical capacity

    NO. Mechanical or
    physical property    		 Property class
    4.6 4.8 5.6 5.8 6.8 8.8 9.8 10.9 12.9/12.9
    D≤16mma d＞16mmb d≤16mm
    1 Tensile strength
    Rm,Mpa    		 nom.c 400 500 600 800 900 1000 1200
    max. 400 420 500 520 600 800 830 900 1040 1220
    2 Lower yield strength
    ReL,Mpa    		 nom.c 240 —— 300 —— —— —— —— —— —— ——
    max. 240 —— 300 —— —— —— —— —— —— ——
    3 Stress at 0,2 % nonproportional elongation
    Rp0.2,Mpa    		 nom.c —— —— —— —— —— 640 640 720 900 1080
    max. —— —— —— —— —— 640 660 720 940 1100
    4 Stress at 0,0048 d non-proportional elongation for
    full-size fasteners
    Rpf,Mpa    		 nom.c —— 320 —— 400 480 —— —— —— —— ——
    max. —— 340e —— 420e 480e —— —— —— —— ——
    5 Stress under proof load
    Spf,Mpa    		 nom. 225 310 280 380 440 580 600 650 830 970
    Proof Sp,nom/ReL min Or
    strength Sp,nom/Rp0.2min Or
    rati Sp,nom/Rpf min
    		 0.94 0.91 0.93 0.9 0.92 0.91 0.91 0.9 0.88 0.88
    6 Percentage elongation
    after fracture for
    machined test pieces,A,%    		 min. 22 —— 20 —— —— 12 12 10 9 8
    7 Percentage reduction of area after
    fracture for machined test pieces,Z,%    		 min. —— 52 48 48 44
    8 Elongation after fracture for full-size
    fasteners,Af    		 min. —— 0.24 —— 0.22 0.2 —— —— —— —— ——
    9 Head soundness No fracture
    10 Vickers hardness, HV,
    F≥98N    		 min. 120 130 155 160 190 250 255 290 320 385
    max. 220g 250 320 335 360 380 435
    11 Brinell hardness, HBW
    ,F=30D²    		 min. 114 124 147 152 181 238 242 276 304 366
    max. 209g 238 304 318 342 361 414
    12 Rockwell hardness,HRB ,
    HRB    		 min. 67 71 79 82 89 　
    max. 95g 99.5 　
    Rockwell hardness,
    HRC    		 min. —— 22 23 28 32 39
    max. —— 32 34 37 39 44
    13 Surface hardness
    HV 0.3    		 max. —— h h,j h,j
    14 Height of non-decarburized thread zone,E,mm min. —— 1/2H1 2/3H1 3/4H1
    Depth of complete decarburization in the
    thread,G,mm    		 max. —— 0.015
    15 Reduction of hardness after retempering,HV max. —— 20
    16 Breaking torque,
    MB,N·m    		 min. —— in accordance with ISO 898-7
    17 Impact strength,
    KVK,I,J    		 min. —— 27 —— 27 27 27 27 m
    18 Surface integrity in accordance with ISO 6157-1n ISO 6157-3
    a Values do not apply for structural bolting.
    b For structural bolting d W M12.
    c Nominal values are specified only for the purpose of the designation system for property classes. See Clause 5.
    d In cases where the lower yield strength ReL cannot be determined, it is permissible to measure the stress at 0,2 %
    non-proportional elongation Rp0,2.
    e For the property classes 4.8, 5.8 and 6.8 the values for Rpf min are under investigation. The present values are given
    for calculation of the proof stress ratio only. They are not test values.
    f Proof loads are specified in Tables 5 and 7.
    g Hardness determined at the end of a fastener shall be 250 HV, 238 HB or 99,5 HRB maximum.
    h Surface hardness shall not be more than 30 Vickers points above the measured core hardness of the fastener when
    determination of both surface hardness and core hardness are carried out with HV 0,3.
    i Any increase in hardness at the surface which indicates that the surface hardness exceeds 390 HV is not acceptable.
    j Any increase in hardness at the surface which indicates that the surface hardness exceeds 435 HV is not acceptable.
    k Values are determined at a test temperature of −20 °C, see 9.14.
    l Applies to d W 16 mm. m Value for KV is under investigation.
    n Instead of ISO 6157-1, ISO 6157-3 may apply by agreement between the manufacturer and the purchaser.

    Product Grade

    Class4.8 Class5.8 Class6.8 Class8.8 Class10.9 Class12.9

    Materials and Chemical compstition

    1008

    CHEMICAL COMPOSI %
    C Si Mn P S Cr Ni Cu Al
    0.06 0.06 0.33 0.013 0.003 0.01 0 0.01 0.028

    1035

    CHEMICAL COMPOSI %
    C Si Mn P S Cr Ni Cu
    0.34 0.13 0.73 0.012 0.002 0.02 0.01 0.02

    10B21

    CHEMICAL COMPOSI %
    C Si Mn P S Cr B
    0.2 0.04 0.81 0.017 0.007 0.017 0.0021

    1045

    CHEMICAL COMPOSI %
    C Si Mn P S Cr Ni Cu
    0.45 0.23 0.58 0.014 0.006 0.057 0.008 0.016

    40CR

    CHEMICAL COMPOSI %
    C Si Mn P S Cr Ni Cu
    0.4 0.21 0.54 0.015 0.008 0.95 0.02 0.02

    35CRMO

    CHEMICAL COMPOSI %
    C Si Mn P S Cr Ni Cu Mo
    0.35 0.22 0.59 0.01 0.003 0.93 0.01 0.01 0.21

    42CRMO

    CHEMICAL COMPOSI %
    C Si Mn P S Cr Ni Cu Mo
    0.42 0.27 0.92 0.013 0.004 1.01 0.03 0.04 0.2

    Finish

    PLAIN ZP YZP BLACK HDG DACROMET GEOMET CHROME NICKEL AND SO ON

    PACKING

    QBH BULK

    20-25KG/CTN,36CTNS/PALLET

    20-30KG/BAGS,36BAGS/PALLET

    ONE TON/BOXES

    50KG/ IRON DRUM,12 IRON DRUMS/PALLET

    QBH SMALL PACKING

    Packing in small boxes according to customer’s requirements

    Packing in plastic bag according to customer’s requirements

    QBH PALLET TYPE

    SOLID WOOD FUMIGATION PALLET

    EURO Pallet

    THREE SPLINT PALLET

    WOODEN BOX

    The advantages of QBH

    • QBH brand sales to the main quality assurance.
    • Years of export trade management, excellent service, word-of-mouth guarantee.
    • By working with TUV,escort for quality.
    • Customization of non-standard parts can be made according to customer's requirements and drawings.
    • For quality customers,we can provide a certain credit period.

    Product application

    These Class 8.8 steel screws are suitable for fastening most machinery and equipment. Dimensions

    meet ISO (formerly DIN) specifications. Length is measured from under the head.

    Zinc-plated steel screws resist corrosion in wet environments. Match the thread spacing of mating

    components. Fine and extra-fine threads are closely spaced to prevent loosening from vibration; the

    finer the thread, the better the resistance.

    Product Tags:

    DIN960 Partially Threaded Machine Screws

      

    M52 Partially Threaded Machine Screws

      

    ISO 898 Half Thread Screw

      
    Quality M52 DIN960 CL12.9 Partially Threaded Machine Screws for sale

    M52 DIN960 CL12.9 Partially Threaded Machine Screws

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