ASME B 18.3 - 2012 Hexagon Socket Flat Countersunk Head Cap Screws [Table 8] (ASTM F835 / F879)


Unit: inch
Nominal Diameter
d
0# 1# 2# 3# 4# 5# 6# 8# 10# 12# 1/4 5/16
d Nominal Diameter
PP UNC
UNF
UNEF
ds max
min
dk max
min
k Ref
s Nominal Size
Nominal Size
t min
b min
α ±2°
0.06 0.073 0.086 0.099 0.112 0.125 0.138 0.164 0.19 0.2158 0.25 0.3125
- 64 56 48 40 40 32 32 24 24 20 18
80 72 64 56 48 44 40 36 32 28 28 24
- - - - - - - - - 32 32 32
0.06 0.073 0.086 0.099 0.112 0.125 0.138 0.164 0.19 0.2158 0.25 0.3125
0.0568 0.0695 0.0822 0.0949 0.1075 0.1202 0.1329 0.1585 0.184 0.2102 0.2435 0.3053
0.138 0.168 0.197 0.226 0.255 0.281 0.307 0.359 0.411 0.45 0.531 0.656
0.117 0.143 0.168 0.193 0.218 0.24 0.263 0.311 0.359 0.41 0.48 0.6
0.044 0.054 0.064 0.073 0.083 0.09 0.097 0.112 0.127 0.135 0.161 0.198
- - - 1/16 1/16 5/64 5/64 3/32 1/8 1/8 5/32 3/16
0.035 0.05 0.05 0.062 0.062 0.078 0.078 0.094 0.125 0.125 0.156 0.188
0.025 0.031 0.038 0.044 0.055 0.061 0.066 0.076 0.087 0.094 0.111 0.135
0.5 0.62 0.62 0.62 0.75 0.75 0.75 0.88 0.88 0.88 1 1.12
82° 82° 82° 82° 82° 82° 82° 82° 82° 82° 82° 82°
Nominal Diameter
d
3/8 7/16 1/2 5/8 3/4 7/8 1 1-1/8 1-1/4 1-3/8 1-1/2
d Nominal Diameter
PP UNC
UNF
UNEF
ds max
min
dk max
min
k Ref
s Nominal Size
Nominal Size
t min
b min
α ±2°
0.375 0.4375 0.5 0.625 0.75 0.875 1 1.125 1.25 1.375 1.5
16 14 13 11 10 9 8 7 7 6 6
24 20 20 18 16 14 12 12 12 12 12
32 28 28 24 20 20 20 18 18 18 18
0.375 0.4375 0.5 0.625 0.75 0.875 1 1.125 1.25 1.375 1.5
0.3678 0.4294 0.4919 0.6163 0.7406 0.8647 0.9886 1.1086 1.2336 1.3568 1.4818
0.781 0.844 0.938 1.188 1.438 1.688 1.938 2.188 2.438 2.688 2.938
0.72 0.781 0.872 1.112 1.355 1.604 1.841 2.079 2.316 2.553 2.791
0.234 0.234 0.251 0.324 0.396 0.468 0.54 0.611 0.683 0.755 0.827
7/32 1/4 5/16 3/8 1/2 9/16 5/8 3/4 7/8 7/8 1
0.219 0.25 0.312 0.375 0.5 0.562 0.625 0.75 0.875 0.875 1
0.159 0.159 0.172 0.22 0.22 0.248 0.297 0.325 0.358 0.402 0.435
1.25 1.38 1.5 1.75 2 2.25 2.5 2.81 3.12 3.44 3.75
82° 82° 82° 82° 82° 82° 82° 82° 82° 82° 82°
①,Material
a、Alloy steel shall conform in all respects to ASTM F835
b、Corrosion-resistant steel shall conform in all respects to ASTM F879
Alternative history
Similar Standards
1 内六角沉头螺钉 [GB]
GB /T 70.3 - 2008
Hexagon Socket Countersunk Head Screws
Suppliers(1)
2 内六角沉头螺钉 [GB]
GB /T 70.3 - 2000
Hexagon socket countersunk head screws
Suppliers(1)
3 内六角沉头螺钉 [DIN]
DIN 7991 - 1986
Hexagon Socket Countersunk Head Cap Screws
Suppliers(9)
4 内六角沉头螺钉 [ISO]
ISO 10642 - 2019
Hexagon Socket Countersunk Head Screws With Reduced Loadability
Suppliers(2)
5 内六角沉头螺钉 [ISO]
ISO 10642 - 2004
Hexagon Socket Countersunk Head Screws
Suppliers(2)
6 内六角沉头螺钉 [ISO]
ISO 10642 - 1997
Hexagon socket countersunk head screws
Suppliers(2)
7 内六角沉头螺钉 [JIS]
JIS B 1194 - 2006
Hexagon Socket Countersunk Head Screws
8 米制内六角沉头螺钉 [ANSI/ASME]
ANSI/ASME B 18.3.5M - 1993
Metric hexagon socket countersunk head screws
9 米制内六角沉头螺钉 [ANSI/ASME]
ANSI/ASME B 18.3.5M - 1986
Metric hexagon socket countersunk head screws
10 米制内六角沉头螺钉 (ASTM F835M / F879M / A1-70) [ANSI/ASME]
ANSI/ASME B 18.3.5M - 1986 (R2008)
Metric Hexagon Socket Countersunk Head Cap Screws (ASTM F835M / F879M / A1-70)
11 内键槽沉头螺钉 [ANSI/ASME]
ANSI/ASME B 18.3 - 2003
Spline socket flat countersunk head cap screws
12 内六角沉头螺钉 [UNI]
UNI 5933 - 1988
Hexagon Socket Countersunk Head Screws - ISO Metric Coarse Pitch Thread - Product Grade A
13 内六角沉头螺钉 [NF]
NF E 25-146 - 2004
Hexagon Socket Countersunk Head Screws
14 米制内六角沉头螺钉 [BS]
BS 4168-8 - 1982
Metric Hexagon Socket Countersunk Head Screws
15 统一螺纹内六角沉头螺钉  Table 3 [BS]
BS 2470 - 1973
Hexagon Socket Countersunk Head Screws - Unified Thread
16 内六角沉头螺钉 [CNS]
CNS 4558 - 1981
Hexagon Socket Countersunk Head Screws
17 内六角沉头螺钉 [DIN EN ISO]
DIN EN ISO 10642 - 2013
Hexagon socket countersunk head screws
Suppliers(9)
18 内六角沉头螺钉 [DIN EN ISO]
DIN EN ISO 10642 - 2004
Hexagon Socket Countersunk Head Screws
Suppliers(9)
19 内六角沉头螺钉 [DIN EN ISO]
DIN EN ISO 10642 - 2020
Hexagon Socket Countersunk Head Screws
20 内六角沉头螺钉 [Table 2A] [ASME]
ASME B 18.3 - 2003 (R2008)
Hexagon Socket Flat Countersunk Head Cap Screws