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ISO 14581 Hexalobular socket Countersunk head screws


Unit: mm
国际ISO 14581 ISO14581 14581ISO 梅花槽沉头螺钉
Screw Thread
(d)
P
(Pitch)
b
(min)
dk
(Nom)
dk
(max)
dk
(min)
k
(max)
槽号
t
(max)
t
(min)
Weitht of per 1000 steel products(≈kg)
*Nominal length L
M2
0.4 25 4.4 3.8 3.5 1.2 T6 0.64 0.51 -
M2.5
0.45 25 5.5 4.7 4.4 1.5 T8 0.79 0.66 -
M3
0.5 25 6.3 5.5 5.2 1.65 T10 0.83 0.7 -
M3.5
0.6 38 8.2 7.3 6.94 2.35 T15 1.32 1.16 -
M4
0.7 38 9.4 8.4 8.04 2.7 T20 1.53 1.14 -
M5
0.8 38 10.4 9.3 8.94 2.7 T25 1.51 1.12 -
M6
1 38 12.6 11.3 10.87 3.3 T30 1.78 1.39 -
M8
1.25 38 17.3 15.8 15.37 4.65 T45 2.54 2.15 -
M10
1.5 38 20 18.3 17.78 5 T50 2.8 2.41 -
Relevant Standards
1
内六角花形沉头螺钉
[GB]
GB /T 2673-1986
Hexagon lobular socket countersunk head screws
2
内六角花形沉头螺钉
[GB]
GB /T 2673-2004
Hexalobular socket countersunk head tapping screws
3
梅花槽沉头螺钉
[GB]
GB /T 2673-2007
Hexalobular socket Countersunk head screws Suppliers(1)
4
梅花槽沉头螺钉
[NF]
NF E 25-107-2007
Screws with six lobes recessed countersunk head-Symbol FX