home Products Combination screw

Combination screw

  • Brand:

    T,TGR,XDM,OEM as requirement

  • Brief:

    GB9074.4-1988

  • Surface:

    Polishing; Anodize; Nickel, Zinc, Black,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:

    ST2.9-ST6.3

  • MOQ:

    Feel free to contact us for further inquiry.
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product details

Cross Recessed Pan Head Screws,Single Coil Spring Lock Washer And Plain Washers Assemblies, Combination Machine screw GB9074.4-1988 available for ISO ROHS,SGS
Made from 18-8 stainless steel, these screws have good chemical resistance and may be mildly magnetic. All are passivated for added protection against corrosion and oxidation. Length is measured from under the head.

Screw Thread d M2 M2.5 M3 (M3.5) M4 M5 M6 M8
dk max 3.5 4.5 5.5 6 7 9 10.5 14
min 3.1 4.1 5 5.5 6.5 8.4 9.8 13.2
k max 1.4 1.8 2.15 2.45 2.75 3.45 4.1 5.4
min 1.2 1.6 1.85 2.15 2.45 3.15 3.7 5
D1 Small plain washer max 4.3 5 6 7 8 10 11.5 15.5
min 4 4.7 5.7 6.65 7.65 9.65 11.1 15.1
h1 Small plain washer max 0.34 0.55 0.55 0.55 0.9 1.1 1.75 1.75
min 0.26 0.45 0.45 0.45 0.7 0.9 1.45 1.45
D1 Polished plain washer max 5 6.5 7 9 9 10 12.5 17
min 4.7 6.15 6.65 8.65 8.65 9.65 12.1 16.6
h1 Polished plain washer max 0.34 0.55 0.55 0.55 0.9 1.1 1.75 1.75
min 0.26 0.45 0.45 0.45 0.7 0.9 1.45 1.45
D2 Spring washer max 4 4.8 5.5 6.2 7 8.5 11.5 14.5
h2 Spring washer min 0.5 0.6 0.7 0.8 1 1.3 1.5 2
Screw Thread d M4 M5 M6 M8
b min 38 38 38 38
h Nominal Size 0.8 1 1.6 1.6
H Nominal Size 2.75 3.25 4 5
dc Nominal Size 9 10 12 16
d2 Ref. 6.78 8.75 10.71 13.64