home Products Slotted Flat Head Cap Screws

Slotted Flat Head Cap Screws

  • Brand:

    T,TGR,XDM,OEM as requirement

  • Brief:

    CSK machine screw, available for ISO ROHS,SGS

  • Surface:

    Polishing; Anodize; Nickel, Zinc, Tin, chrome,Silver plating ,Heat treatment: Point hardening,quenching hardening

  • Material:

    Stainless steel 304,316,316L,410,Duplex2205,2507,Carbon steel 4.8/8.8/10.9/12.9grade

  • Size:

    M1-M20

  • MOQ:

    Feel free to contact us for further inquiry.
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product details

Machine screws are used with nuts or screwed directly into a threaded receptacle to fasten parts together. Measured from the underside of the head to the tip of the screw to obtain fastener length. Use with nuts of the same finish and threaded.

Screw Thread d M1 M1.2 M1.4 M1.6 M2 M2.5 M3 (M3.5) M4
P Pitch 0.25 0.25 0.3 0.35 0.4 0.45 0.5 0.6 0.7
a max 0.5 0.5 0.6 0.7 0.8 0.9 1 1.2 1.4
b min - - - 15 16 18 19 20 22
dk max=nominal size 1.9 2.3 2.6 3 3.8 4.7 5.6 6.5 7.5
min 1.76 2.06 2.46 2.86 3.5 4.4 5.3 6.14 7.14
k max 0.6 0.72 0.84 0.96 1.2 1.5 1.65 1.93 2.2
n max 0.45 0.5 0.5 0.6 0.7 0.8 1 1 1.2
min 0.31 0.36 0.36 0.46 0.56 0.66 0.86 0.86 1.06
t max 0.3 0.35 0.4 0.45 0.6 0.7 0.85 1 1.1
min 0.2 0.25 0.28 0.32 0.4 0.5 0.6 0.7 0.8
x max - - - 0.9 1 1.1 1.25 1.5 1.75
Screw Thread d M5 M6 M8 M10 M12 (M14) M16 (M18) M20
P Pitch 0.8 1 1.25 1.5 1.75 2 2 2.5 2.5
a max 1.6 2 2.5 3 3.5 4 4 5 5
b min 25 28 34 40 46 52 58 64 70
dk max=nominal size 9.2 11 14.5 18 22 25 29 33 36
min 8.84 10.57 14.07 17.57 21.48 24.48 28.48 32.38 35.38
k max 2.5 3 4 5 6 7 8 9 10
n max 1.51 1.91 2.31 2.81 3.31 3.31 4.37 4.37 5.37
min 1.26 1.66 2.06 2.56 3.06 3.06 4.07 4.07 5.07
t max 1.3 1.6 2.1 2.6 3 3.5 4 4.5 5
min 1 1.2 1.6 2 2.4 2.8 3.2 3.6 4
x max 2 2.5 3.2 3.8 4.4 5 5 6.3 6.3