Click Specification

Heavy Hex Bolts [Table 3] (ASTM A307 / A394)

ASME B 18.2.1 - 2012

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Screw Thread
d

3/8

1/2

5/8

3/4

7/8

1-1/8

1-1/4

1-3/8

d
d_s	max
	min
s	max
	min
e	max
	min
k	max
	min
r	max
	min
b	L≤6
	L＞6

0.3750	0.5000	0.6250	0.7500	0.8750	1.0000	1.1250	1.2500	1.3750
0.388	0.515	0.642	0.768	0.895	1.022	1.149	1.277	1.404
0.360	0.482	0.605	0.729	0.852	0.976	1.098	1.223	1.345
0.688	0.875	1.062	1.250	1.438	1.625	1.812	2.000	2.188
0.669	0.850	1.031	1.212	1.394	1.575	1.756	1.938	2.119
0.794	1.010	1.227	1.443	1.660	1.876	2.093	2.309	2.526
0.763	0.969	1.175	1.383	1.589	1.796	2.002	2.209	2.416
0.268	0.364	0.444	0.524	0.604	0.700	0.780	0.876	0.940
0.226	0.302	0.378	0.455	0.531	0.591	0.658	0.749	0.810
0.030	0.030	0.060	0.060	0.060	0.090	0.090	0.090	0.090
0.010	0.010	0.020	0.020	0.020	0.030	0.030	0.030	0.030
1.000	1.250	1.500	1.750	2.000	2.250	2.500	2.750	3.000
1.250	1.500	1.750	2.000	2.250	2.500	2.750	3.000	3.250

Screw Thread
d

1-1/2

1-5/8

1-3/4

1-7/8

2-1/4

2-1/2

2-3/4

d
d_s	max
	min
s	max
	min
e	max
	min
k	max
	min
r	max
	min
b	L≤6
	L＞6

1.5000	1.6250	1.7500	1.8750	2.0000	2.2500	2.5000	2.7500	3.0000
1.531	1.658	1.785	1.912	2.039	2.305	2.559	2.827	3.081
1.470	1.591	1.716	1.839	1.964	2.214	2.461	2.711	2.961
2.375	2.562	2.750	2.938	3.125	3.500	3.875	4.250	4.625
2.300	2.481	2.662	2.844	3.025	3.388	3.750	4.112	4.475
2.742	2.959	3.175	3.392	3.608	4.041	4.474	4.907	5.340
2.622	2.829	3.035	3.242	3.449	3.862	4.275	4.688	5.102
1.036	1.116	1.196	1.276	1.388	1.548	1.708	1.869	2.060
0.902	0.978	1.054	1.130	1.175	1.327	1.479	1.632	1.815
0.090	0.090	0.120	0.120	0.120	0.190	0.190	0.190	0.190
0.030	0.030	0.040	0.040	0.040	0.060	0.060	0.060	0.060
3.250	3.500	3.750	4.000	4.250	4.750	5.250	5.750	6.250
3.500	3.750	4.000	4.250	4.500	5.000	5.500	6.000	6.500

Alternative history

ANSI/ASME B 18.2.1 - 1996 ASME B 18.2.1 - 2010 ASME B 18.2.1 - 2012

Suppliers

Best price if from GlobalFastener.com.

Ningbo SiTuo Fastener Co., Ltd

Petty Cao
+86-15381997760

Material: carbon steel, stainless steel; Grade: 4.8, 8.8, 10.9, 12.9; Surface treatment: according to customer requirements; Complete specifications, non-standard customization.

NingBo ZhenHai Guisi Zhaoyang Hardware Screw Factory

Mr.Fang
+86-13806639241
+86-574-86574666

Material: carbon steel; Specifications: M5-M24; Length: 20mm~250mm;Surface treatment: nature, black, galvanized, rohs, hot galvanized, dacromet; Grade: 4.8~12.9

Similar Standards

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3	[DIN EN] DIN EN 14399 (-4 Bolt) - 2015	High-strength structural bolting assemblies for preloading - Part 4: System HV — Hexagon bolt View Suppliers
4	[UNI] UNI 5712 - 1975	High-strength Large Hexagon Bolts for Structural Engineering - ISO metric coarse thread View Suppliers
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6	[ASME] ASME B 18.2.6 - 2006	Heavy Hex Structural Bolts (ASTM A 325 / ASTM A 490)
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29	[JIS] JIS B 1186 - 1995	High Strength Hexagon Bolts For Friction Grip Joints
30	[GB] GB /T 9125 - 2003	Hex Bolt For Pipe Flange Connection
31	[GB] GB /T 1228 - 1991	High strength bolts with large hexagon head for steel structures
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43	[AS] AS /NZS 1252 - 1996	High-Strength Steel Bolts
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45	[CNS] CNS 3124 - 1987	Hexagon Head Bolts for Steel Structures
46	[CNS] CNS 4366 - 1987	Hexagon Bolts With Large Widths Across Flats For Steel Structures
47	[CNS] CNS 11328 - 1985	High Strength Friction Grip Hexagon Bolts
48	[IS] IS 3757 - 1985	High strength structural bolts
49	[ASTM] ASTM A325M - 2009	Standard Specification for structural bolts,steel,heat treated 830MPa minmum tensile strength(metric)