We are Stainless Steel Slotted Countersunk Head Screws supplier could supply you Metric screws-GB/T68 Stainless Steel Slotted Countersunk Head Screws.which is flush with the surface of the connector. This screw is aesthetically pleasing and is used where a little protrusion can be allowed on the surface.
GB/T68 Stainless Steel Slotted Countersunk Head Screws sizes and drawings as below:
d | M1.6 | M2 | M2.5 | M3 | (M3.5) | M4 | M5 | M6 | M8 | M10 | ||
p | pitch | 0.35 | 0.4 | 0.45 | 0.5 | 0.6 | 0.7 | 0.8 | 1 | 1.25 | 1.5 | |
a | max | 0.7 | 0.8 | 0.9 | 1 | 1.2 | 1.4 | 1.6 | 2 | 2.5 | 3 | |
b | min | 25 | 25 | 25 | 25 | 38 | 38 | 38 | 38 | 38 | 38 | |
dk | Theoretical value | max | 3.6 | 4.4 | 5.5 | 6.3 | 8.2 | 9.4 | 10.4 | 12.6 | 17.3 | 20 |
Actual value | max=DK | 3 | 3.8 | 4.7 | 5.5 | 7.3 | 8.4 | 9.3 | 11.3 | 15.8 | 18.3 | |
min | 2.7 | 3.5 | 4.4 | 5.2 | 6.94 | 8.04 | 8.94 | 10.87 | 15.37 | 17.78 | ||
k | max=DK | 1 | 1.2 | 1.5 | 1.65 | 2.35 | 2.7 | 2.7 | 3.3 | 4.65 | 5 | |
n | DK | 0.4 | 0.5 | 0.6 | 0.8 | 1 | 1.2 | 1.2 | 1.6 | 2 | 2.5 | |
max | 0.6 | 0.7 | 0.8 | 1 | 1.2 | 1.51 | 1.51 | 1.91 | 2.31 | 2.81 | ||
min | 0.46 | 0.56 | 0.66 | 0.86 | 1.06 | 1.26 | 1.26 | 1.66 | 2.06 | 2.56 | ||
t | max | 0.5 | 0.6 | 0.75 | 0.85 | 1.2 | 1.3 | 1.4 | 1.6 | 2.3 | 2.6 | |
min | 0.32 | 0.4 | 0.5 | 0.6 | 0.9 | 1.0 | 1.1 | 1.2 | 1.8 | 2 | ||
x | max | 0.9 | 1 | 1.1 | 1.25 | 1.5 | 1.75 | 2 | 2.5 | 3.2 | 3.8 |
One stop service for supply all kinds of stainless steel bolts and stainless steel nuts,also full thread hexagon head bolts and half thread bolts,heavy nuts and thin nuts,countersunk screws and related stainless steel fasteners.
Welcome contact us for GB/T68 Stainless Steel Slotted Countersunk Head Screws also stainless steel hex bolts and nuts,just mail us info@topqualityalloy.com with necessary information with material grade,sizes,quantity.
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