GB/T68 Slotted Countersunk Head Screws are mostly used in places where the surface cannot be raised after installation.We have professional factory also with stock for some sizes,soonest delivery guarantee,our production in titanium fasteners and alloyed titanium fasteners including the standards of GB,DIN,ASME/ANSI,ISO,UNI,JIS and other industrial standards of ti fasteners,as well as non-standard titanium and titanium alloy fasteners.
The dimensions of GB/T68 Slotted Countersunk Head Screws and drawings each 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 | |
All our products we make sure good quality and everything we do try to meet our customer satisfaction 100%.There are our mature entrepreneurial management,professional R&D team,advanced manufacturing technology.
We are an audited fasteners supplier by SGS and BV,specialize in this field for many years with own professional factory could do soonest delivery with good quality and pretty competitive price.
Welcome contact us for titanium GB/T68 Slotted Countersunk Head Screws in titanium screws and titanium alloy fasteners,please mail us info@topqualityalloy.com with necessary sizes and quantity for inquiry and order.
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