Click Specification

Heavy Hex Screws [Table 7]

ASME B 18.2.1 - 2010

Display drawing:

Screw Thread
d

3/8

1/2

5/8

3/4

7/8

1-1/8

1-1/4

1-3/8

1-1/2

1-5/8

1-3/4

1-7/8

2-1/4

d_s	max
d_s	min
s	max
s	min
e	max
e	min
k	max
k	min
k_w	min
b	L≤6
b	L＞6

0.375	0.5	0.625	0.75	0.875	1	1.125	1.25	1.375	1.5	1.625	1.75	1.875	2	2.25
0.36	0.482	0.605	0.729	0.852	0.976	1.098	1.223	1.345	1.47	1.591	1.716	1.839	1.964	2.214
0.688	0.875	1.062	1.25	1.438	1.625	1.812	2	2.188	2.375	2.562	2.75	2.938	3.125	3.5
0.669	0.85	1.031	1.212	1.394	1.575	1.756	1.938	2.119	2.3	2.481	2.662	2.844	3.025	3.388
0.794	1.01	1.227	1.443	1.66	1.876	2.093	2.309	2.526	2.742	2.959	3.175	3.392	3.608	4.041
0.763	0.969	1.175	1.383	1.589	1.796	2.002	2.209	2.416	2.622	2.829	3.035	3.242	3.449	3.862
0.243	0.323	0.403	0.483	0.563	0.627	0.718	0.813	0.878	0.974	1.038	1.134	1.198	1.263	1.423
0.226	0.302	0.378	0.455	0.531	0.591	0.658	0.749	0.81	0.902	0.962	1.054	1.114	1.175	1.327
0.160	0.215	0.269	0.324	0.378	0.416	0.461	0.530	0.569	0.640	0.694	0.748	0.802	0.825	0.933
1	1.25	1.5	1.75	2	2.25	2.5	2.75	3	3.25	3.5	3.75	4	4.25	-
1.25	1.5	1.75	2	2.25	2.5	2.75	3	3.25	3.5	3.75	4	4.25	4.5	5

Screw Thread
d

2-1/2

2-3/4

3-1/4

3-1/2

3-3/4

4-1/4

4-1/2

4-3/4

5-1/4

5-1/2

5-3/4

d_s	max
d_s	min
s	max
s	min
e	max
e	min
k	max
k	min
k_w	min
b	L≤6
b	L＞6

2.5	2.75	3	3.25	3.5	3.75	4	4.25	4.5	4.75	5	5.25	5.5	5.75	6
2.461	2.711	2.961	3.21	3.461	3.7109	3.9609	4.2228	4.4727	4.7227	4.9726	5.2226	5.4726	5.7225	5.9725
3.875	4.25	4.625	5	5.375	5.75	6.125	6.5	6.875	7.25	7.625	8	8.375	8.75	9.125
3.75	4.112	4.475	4.838	5.2	5.562	5.925	6.288	6.65	7.012	7.375	7.738	8.1	8.462	8.825
4.474	4.907	5.34	5.774	6.207	6.64	7.073	7.506	7.939	8.372	8.805	9.238	9.671	10.104	10.537
4.275	4.688	5.102	5.515	5.928	6.341	6.755	7.168	7.581	7.994	8.408	8.821	9.234	9.647	10.060
1.583	1.744	1.935	2.126	2.256	2.447	2.576	2.768	2.896	3.088	3.217	3.408	3.538	3.729	3.858
1.479	1.632	1.815	1.998	2.12	2.303	2.424	2.608	2.728	2.912	3.033	3.216	3.338	3.521	3.642
1.042	1.151	1.290	1.399	1.484	1.612	1.697	1.826	1.910	2.038	2.123	2.251	2.337	2.465	2.549
-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
5.5	6	6.5	7	7.5	8	8.5	9	9.5	10	10.5	11	11.5	12	12.5

Alternative history

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

Send Inquiry

Similar Standards

1	[UNI] UNI 5712 - 1975	High-strength Large Hexagon Bolts for Structural Engineering - ISO metric coarse thread View Suppliers
2	[ASME] ASME B 18.2.1 - 2010	Heavy Hex Bolts View Suppliers
3	[ASME] ASME B 18.2.1 - 2012	Heavy Hex Bolts [Table 3] (ASTM A307 / A394) View Suppliers
4	[DIN] DIN 6914 - 1989	High-Strength Hexagon Bolts With Large Widths Across Flats For Structural Bolting View Suppliers
5	[DIN EN] DIN EN 14399 (-4 Bolt) - 2015	High-strength structural bolting assemblies for preloading - Part 4: System HV — Hexagon bolt View Suppliers
6	[AS] AS /NZS 1252 - 1996	High-Strength Steel Bolts
7	[EN] EN 14399 (-3 Bolt) - 2015	High-strength structural bolting assemblies for preloading - Part 3: System HR — Hexagon bolt assemblies
8	[GB] GB /T 32076.3 - 2015	High-Strength Structural Bolting Assemblies For Preloading-Part 3:System HR-Hexagon Bolt With Large Width Across Flats
9	[GB] GB /T 32076.4 - 2015	High-Strength Structural Bolting Assemblies For Preloading - Part 4:System HV-Hexagon Bolt With Large Width Across Flats
10	[GB] GB /T 32076.7 - 2015	High-strength Structural Bolting Assemblies For Preloading-Part 7:system HV-Hexagon Bolt With Large Width Across Flats And Nut Assemblies M39～m64
11	[GB] GB /T 18230.1 - 2000	Hexagon bolts for structural bolting with large width across flats
12	[GB] GB /T 18230.2 - 2000	Large hex bolts for structural bolting with large width across flats - short thread
13	[ISO] ISO 7412 - 1984	Hexagon Bolts For High-Strength Structural Bolting With Large Width Across Flats(Short Thread Length—Product Grade C—Property Classes 8.8 And 10.9
14	[ASME/ANSI] ASME/ANSI B 18.2.3.3M - 2001	Metric heavy hexagon bolts
15	[BS] BS 4395-1 - 1969	Metric High Strength Large Hexagon Head Bolts
16	[BS] BS 1769 - 1951	Unified hexagon head forged bolts
17	[GOST] GOST 32484.3 - 2014	High-strength Structural Bolting Assemblies For Preloading-system HR-Hex Bolt
18	[GOST] GOST R 52644 - 2006	Hexagon Bolts For High-Strength Structural Bolting With Large Width Across Flats - Product Grade C - Property Classes 8.8 And 10.9
19	[JIS] JIS B 1186 - 2013	High Strength Hexagon Bolts For Friction Grip Joints
20	[JIS] JIS B 1186 - 1995	High Strength Hexagon Bolts For Friction Grip Joints
21	[NF] NF E 25-801-3 - 2005	High Strength Bolts With Large Hexagon Head For Steel Structure
22	[NF] NF E 25-801-4 - 2005	High Strength Bolts With Large Hexagon Head For Steel Structure
23	[CNS] CNS 3124 - 1987	Hexagon Head Bolts for Steel Structures
24	[CNS] CNS 4366 - 1987	Hexagon Bolts With Large Widths Across Flats For Steel Structures
25	[CNS] CNS 11328 - 1985	High Strength Friction Grip Hexagon Bolts
26	[IS] IS 3757 - 1985	High strength structural bolts
27	[ASTM] ASTM A325M - 2009	Standard Specification for structural bolts,steel,heat treated 830MPa minmum tensile strength(metric)
28	[DIN] DIN 7990 - 1989	Hexagon Head Bolts With Hexagon Nut For Steel Structures
29	[GB] GB /T 9125.2 - 2020	Hex Bolt For Pipe Flange Connection - Class designated
30	[GB] GB /T 16939 - 2016	High Strength Bolts For Joints Of Space Grid Structures
31	[GB] GB /T 9125 - 2010	Hex Bolt For Pipe Flange Connection
32	[GB] GB /T 1228 - 2006	High Strength Bolts with Large Hexagon Head for Steel Structures
33	[GB] GB /T 9125 - 2003	Hex Bolt For Pipe Flange Connection
34	[GB] GB /T 16939 - 1997	High Strength Bolts For Joints Of Space Grid Structures
35	[GB] GB /T 1228 - 1991	High strength bolts with large hexagon head for steel structures
36	[ISO] ISO 7411 - 1984	Hexagon Bolts For High-Strength Structural Bolting With Large Width Across Flats(Thread Lengths According To ISO 888)—Product Grade C—Property Classes 8.8 And 10.9
37	[DIN] DIN 7990 - 2017	Hexagon Head Bolts With Hexagon Nut For Steel Structures
38	[DIN] DIN 7990 - 2008	Hexagon Head Bolts With Hexagon Nut For Steel Structures
39	[AS] AS /NZS 1252.1 - 2016	High-Strength Steel Bolts
40	[IFI] IFI 149 - 2000	Large Size Heavy Hex Screws
41	[ASME/ANSI] ASME/ANSI B 18.2.3.7M - 2006	Metric heavy hex structural bolts
42	[ANSI] ANSI B 18.2.3.6M (J1199,F568,A962,A320) - 1979 (R2006)	Metric Heavy Hex Bolts
43	[ASME] ASME B 18.2.6 - 2019	Heavy Hex Structural Bolts (ASTM F3125 / F3125M)
44	[ASME] ASME B 18.2.1 - 2012	Heavy Hex Screws [Table 7] (ASTM A193 / A320 / A394)
45	[ASME] ASME B 18.2.6M - 2012	Metric Heavy Hex Structural Bolts (ASTM A 325M / ASTM A 490M)
46	[ASME] ASME B 18.2.6 - 2010	Heavy Hex Structural Bolts (ASTM A 325 / ASTM A 490)
47	[ASME] ASME B 18.2.6 - 2006	Heavy Hex Structural Bolts (ASTM A 325 / ASTM A 490)
48	[GB] GB /T 9125.1 - 2020	Hex Bolt For Pipe Flange Connection - PN designated
49	[EN] EN 14399 (-4 Bolt) - 2005	High-strength structural bolting assemblies for preloading - Part 4: System HV — Hexagon bolt