About Us Pricing Terms of Use FAQ Contact Us
| 简体 | 繁體 |
English Deutsch Français 日本語 Italiano Español 한어 Português Русский بالعربية Türkçe

Click Specification

Unit:inch

Hexagon Socket Flat Countersunk Head Cap Screws

ASME B 18.3 - 2003 (R2008)

Display drawing:

美标ASME B18.3 - 2003 (R2008) ASME18.3 18. Hexagon Socket Flat Countersunk Head Cap Screws
Download CAD Model*

 *Models with different eras.

Nominal Length L Tips:seclect Nominal Length L and get Thread length.
Screw Thread
d
0# 1# 2# 3# 4# 5# 6# 8# 10# 1/4 5/16
d Nominal Diameter
PP UNC
UNF
UNEF
ds max
min
dk Theo.Sharp Max
Abs. Min
k Ref
s Nominal Size
Nominal Size
t min
b min
α ±2°
0.060 0.073 0.086 0.099 0.112 0.125 0.138 0.164 0.190 0.250 0.3125
- 64.0 56.0 48.0 40.0 40.0 32.0 32.0 24.0 20.0 18.0
80.0 72.0 64.0 56.0 48.0 44.0 40.0 36.0 32.0 28.0 24.0
- - - - - - - - - 32.0 32.0
0.060 0.073 0.086 0.099 0.112 0.125 0.138 0.164 0.19 0.250 0.3125
0.0568 0.0695 0.0822 0.0949 0.1075 0.1202 0.1329 0.1585 0.1840 0.2435 0.3053
0.138 0.168 0.197 0.226 0.255 0.281 0.307 0.359 0.411 0.531 0.656
0.117 0.143 0.168 0.193 0.218 0.240 0.263 0.311 0.359 0.480 0.600
0.044 0.054 0.064 0.073 0.083 0.090 0.097 0.112 0.127 0.161 0.198
- - - 1/16 1/16 5/64 5/64 3/32 1/8 5/32 3/16
0.035 0.050 0.050 0.062 0.062 0.078 0.078 0.094 0.125 0.156 0.188
0.025 0.031 0.038 0.044 0.055 0.061 0.066 0.076 0.087 0.111 0.135
0.50 0.62 0.62 0.62 0.75 0.75 0.75 0.88 0.88 1.00 1.12
82° 82° 82° 82° 82° 82° 82° 82° 82° 82° 82°
Length of Thread b
- - - - - - - - - - -
Screw Thread
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 Theo.Sharp Max
Abs. Min
k Ref
s Nominal Size
Nominal Size
t min
b min
α ±2°
0.375 0.4375 0.500 0.625 0.750 0.875 1.000 1.125 1.250 1.375 1.500
16.0 14.0 13.0 11.0 10.0 9.0 8.0 7.0 7.0 6.0 6.0
24.0 20.0 20.0 18.0 16.0 14.0 12.0 12.0 12.0 12.0 12.0
32.0 28.0 28.0 24.0 20.0 20.0 20.0 18.0 18.0 18.0 18.0
0.375 0.4375 0.500 0.625 0.750 0.875 1.000 1.125 1.250 1.375 1.500
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
0.720 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 0.540 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 0.250 0.312 0.375 0.500 0.562 0.625 0.750 0.875 0.875 1.000
0.159 0.159 0.172 0.220 0.220 0.248 0.297 0.325 0.358 0.402 0.435
1.25 1.38 1.50 1.75 2.00 2.25 2.50 2.81 3.12 3.44 3.75
82° 82° 82° 82° 82° 82° 82° 82° 82° 82° 82°
Length of Thread b
- - - - - - - - - - -

Alternative history

ASME B 18.3 - 2003(R2008) ASME B 18.3 - 2012

Suppliers

Best price if from GlobalFastener.com.
Shanghai ATM Precision Fastening Technology Co., Ltd.

  • Xu Hai

  • +86-18621311857

  • +86-21-59766477

  • Materials: 301, 302, 303, 304, 304L, 316, 316L, 316Ti, 317L, 310S, 321, 347, 1.4529, 1.4539, 1.4462, 1.4547, 1.4980, 904L, 2205, 2507, 2520, S32750, S32760, 1Cr13, 1Cr17, 2Cr13, 3Cr13, 14Cr17Ni2, 410, 416, 420, 430, 431, 440, 630, 631, 17-4PH, MP35N, 600, 601, 625, 660, 718, 750, 800, 825, 925, 926, C22, C276, A286, GH2132, GH4033, GH4080, GH4169, GH4145, 9C18Mo, 4Cr10Si2Mo, 35CrMoA, 42CrMoA, 40CrNiMoA, 25Cr2Mo1VA, SCM435, SCM440, 4130, 4140, 4145, A36, A307, A320, A325, A490, A574, F1554; stainless steel, alloy steel, titanium alloys, nickel-based alloys, high-temperature alloys, corrosion-resistant alloys, nickel-cobalt alloys, special alloys, and other special materials per customer specifications. Grades: A1-50, A2-50, A2-70, A2-80, A3-70, A4-70, A4-80, A4-90, A4-100, A5-80, B8, B8M, B8C, B8T, B6, B7, B7M, B16, C1-50, C1-70, C1-110, C3-80, C3-120, C4-70, D2-80, D2-100, D4-80, D4-100, D6-80, D6-100, D8-80, D8-100, P1-90, P1-120, F51, F53, F55, F60, 10.9, 12.9, 14.9, 15.9, 16.9; Other grades available upon request. Specifications: M3–M120, 1/4"–4". No limitation on product diameter or length; custom non-standard parts can be manufactured upon request. Surface Treatments: passivation, black oxide, phosphating, electrophoretic coating, zinc plating, nickel plating, chrome plating, cadmium plating, gold plating, silver plating, tin plating, copper plating, zinc diffusion, marine zinc, aluminum diffusion, aluminum spraying, Dacromet, Geomet, Teflon coating, zinc-nickel alloy plating, nickel-cobalt alloy plating, hot-dip galvanizing, ceramic composite coatings, molybdenum disulfide coating, tungsten disulfide coating, nano-coatings, and other surface finishes per customer requirements.
Contact us via Email
Join Us

Similar Standards

1 Hexagon Socket Countersunk Head Screws [DIN EN ISO]
DIN EN ISO 10642 - 2013 		Hexagon Socket Countersunk Head Screws

View Suppliers
2 Hexagon Socket Countersunk Head Screws [ISO]
ISO 10642 - 2004 		Hexagon Socket Countersunk Head Screws

View Suppliers
3 Hexagon Socket Countersunk Head Screws [DIN EN ISO]
DIN EN ISO 10642 - 2004 		Hexagon Socket Countersunk Head Screws

View Suppliers
4 Hexagon Socket Countersunk Head Screws [DIN EN ISO]
DIN EN ISO 10642 - 2020 		Hexagon Socket Countersunk Head Screws

View Suppliers
5 Hexagon Socket Countersunk Head Screws with Reduced Loadability [ISO]
ISO 10642 - 2019 		Hexagon Socket Countersunk Head Screws with Reduced Loadability

View Suppliers
6 Hexagon Socket Flat Countersunk Head Cap Screws [Table 8] (ASTM F835 / F879) [ASME]
ASME B 18.3 (T8) - 2012 		Hexagon Socket Flat Countersunk Head Cap Screws [Table 8] (ASTM F835 / F879)

View Suppliers
7 Hexagon Socket Countersunk Head Screws [ISO]
ISO 10642 - 1997 		Hexagon Socket Countersunk Head Screws

View Suppliers
8 Hexagon Socket Countersunk Head Cap Screws [DIN]
DIN 7991 - 1986 		Hexagon Socket Countersunk Head Cap Screws

View Suppliers
9 Hexagon Socket Countersunk Head Screws with Reduced Loadability [GB]
GB /T 70.3 - 2023 		Hexagon Socket Countersunk Head Screws with Reduced Loadability

View Suppliers
10 Hexagon Socket Countersunk Head Screws [GB]
GB /T 70.3 - 2008 		Hexagon Socket Countersunk Head Screws

View Suppliers
11 Hexagon Socket Countersunk Head Screws [GB]
GB /T 70.3 - 2000 		Hexagon Socket Countersunk Head Screws

View Suppliers
12 Metric Hexagon Socket Countersunk Head Screws [ASME/ANSI]
ASME/ANSI B 18.3.5M - 1986 		Metric Hexagon Socket Countersunk Head Screws
13 Metric Hexagon Socket Countersunk Head Cap Screws (ASTM F835M / F879M / A1-70) [ASME/ANSI]
ASME/ANSI B 18.3.5M - 1986 (R2008) 		Metric Hexagon Socket Countersunk Head Cap Screws (ASTM F835M / F879M / A1-70)
14 Metric Socket Countersunk Head Cap Screws [IFI]
IFI 535 - 1982 		Metric Socket Countersunk Head Cap Screws
15 Spline Socket Flat Countersunk Head Cap Screws [ASME/ANSI]
ASME/ANSI B 18.3 - 2003 		Spline Socket Flat Countersunk Head Cap Screws
16 Metric Hexagon Socket Countersunk Head Screws [ASME/ANSI]
ASME/ANSI B 18.3.5M - 1993 		Metric Hexagon Socket Countersunk Head Screws
17 Metric Hexagon Socket Countersunk Head Screws [BS]
BS 4168-8 - 1982 		Metric Hexagon Socket Countersunk Head Screws
18 Hexagon Socket Countersunk Head Screws - Unified Thread [BS]
BS 2470 - 1973 		Hexagon Socket Countersunk Head Screws - Unified Thread
19 Hexagon Socket Countersunk Head Screws [JIS]
JIS B 1194 - 2006 		Hexagon Socket Countersunk Head Screws
20 Hexagon Socket Countersunk Head Screws [NF]
NF E 25-146 - 2004 		Hexagon Socket Countersunk Head Screws
21 Hexagon Socket Countersunk Head Screws - ISO Metric Coarse Pitch Thread - Product Grade A [UNI]
UNI 5933 - 1988 		Hexagon Socket Countersunk Head Screws - ISO Metric Coarse Pitch Thread - Product Grade A
22 Hexagon Socket Countersunk Head Screws [CNS]
CNS 4558 - 1981 		Hexagon Socket Countersunk Head Screws
23 Countersunk Head Screws with Hexagon Socket [IS]
IS 6761 - 1994 (R2004) 		Countersunk Head Screws with Hexagon Socket