Click Specification

Double End Studs (ASTM A354 / A449 / F593 / SAE J429)

ASME B 18.31.2 - 2008

Display drawing:

Thread Size
d

1/4

5/16

3/8

7/16

1/2

9/16

5/8

3/4

7/8

1-1/8

1-1/4

1-3/8

d
b_m	Nominal Size
	min
	max
u	max	UNC，NC-5
		UNF
		8UN
b	min	L≤10
		10＜L≤16
		L＞16
d_s	Full body,max
	Full body,min	UNC
		UNF
		8UN
d_s1	Reduced body,max	UNC
		UNF
		8UN
	Reduced body,min	UNC
		UNF
		8UN

0.2500	0.3125	0.3750	0.4375	0.5000	0.5625	0.6250	0.7500	0.8750	1.0000	1.1250	1.2500	1.3750
0.375	0.469	0.563	0.656	0.750	0.844	0.938	1.125	1.313	1.500	1.688	1.875	2.063
0.350	0.440	0.532	0.620	0.708	0.802	0.892	1.075	1.258	1.438	1.625	1.813	2.000
0.400	0.498	0.594	0.692	0.792	0.896	0.983	1.175	1.368	1.562	1.750	1.938	2.125
0.100	0.111	0.125	0.143	0.154	0.167	0.182	0.200	0.222	0.250	0.286	0.286	0.333
0.071	0.083	0.083	0.100	0.100	0.111	0.111	0.125	0.143	0.167	0.167	0.167	0.167
-	-	-	-	-	-	-	-	-	-	0.250	0.250	0.250
0.750	0.875	1.000	1.125	1.250	1.375	1.500	1.750	2.000	2.250	2.500	2.750	3.000
1.000	1.125	1.250	1.375	1.500	1.625	1.750	2.000	2.250	2.500	2.750	3.000	3.250
1.500	1.625	1.750	1.875	2.000	2.125	2.250	2.500	2.750	3.000	3.250	3.500	3.750
0.2500	0.3125	0.3750	0.4375	0.5000	0.5625	0.6250	0.7500	0.8750	1.0000	1.1250	1.2500	1.3750
0.241	0.303	0.364	0.426	0.488	0.550	0.611	0.735	0.859	0.983	1.106	1.231	1.354
0.243	0.304	0.367	0.428	0.491	0.552	0.615	0.739	0.863	0.987	1.112	1.237	1.362
-	-	-	-	-	-	-	-	-	-	1.108	1.233	1.358
0.241	0.303	0.364	0.426	0.488	0.550	0.611	0.735	0.859	0.983	1.106	1.231	1.354
0.243	0.304	0.367	0.428	0.491	0.552	0.615	0.739	0.863	0.987	1.112	1.237	1.362
-	-	-	-	-	-	-	-	-	-	1.108	1.233	1.358
0.213	0.271	0.329	0.385	0.444	0.502	0.559	0.677	0.795	0.910	1.023	1.148	1.256
0.223	0.281	0.343	0.400	0.462	0.521	0.583	0.703	0.822	0.938	1.063	1.188	1.313
-	-	-	-	-	-	-	-	-	-	1.035	1.160	1.284

Thread Size
d

1-1/2

1-5/8

1-3/4

1-7/8

2-1/4

2-1/2

2-3/4

3-1/4

3-1/2

3-3/4

d
b_m	Nominal Size
	min
	max
u	max	UNC，NC-5
		UNF
		8UN
b	min	L≤10
		10＜L≤16
		L＞16
d_s	Full body,max
	Full body,min	UNC
		UNF
		8UN
d_s1	Reduced body,max	UNC
		UNF
		8UN
	Reduced body,min	UNC
		UNF
		8UN

1.5000	1.6250	1.7500	1.8750	2.0000	2.2500	2.5000	2.7500	3.0000	3.2500	3.5000	3.7500	4.0000
2.250	2.438	2.625	2.813	3.000	3.375	3.750	4.125	4.500	4.875	5.250	5.625	6.000
2.188	2.375	2.563	2.750	2.925	3.300	3.675	4.050	4.425	4.775	5.150	5.525	5.900
2.313	2.500	2.688	2.875	3.075	3.450	3.825	4.200	4.575	4.975	5.350	5.725	6.100
0.333	-	0.400	-	0.444	0.444	0.500	0.500	0.500	0.500	0.500	0.500	0.500
0.167	-	-	-	-	-	-	-	-	-	-	-	-
0.250	0.250	0.250	0.250	0.250	0.250	0.250	0.250	0.250	0.250	0.250	0.250	0.250
3.250	3.500	3.750	4.000	4.250	4.750	5.250	5.750	-	-	-	-	-
3.500	3.750	4.000	4.250	4.500	5.000	5.500	6.000	6.500	7.000	7.500	8.000	8.500
4.000	4.250	4.500	4.750	5.000	5.500	6.000	6.500	7.000	7.500	8.000	8.500	9.000
1.5000	1.6250	1.7500	1.8750	2.0000	2.2500	2.5000	2.7500	3.0000	3.2500	3.5000	3.7500	4.0000
1.479	-	1.727	-	1.975	2.225	2.473	2.723	2.973	3.223	3.473	3.723	3.973
1.487	-	-	-	-	-	-	-	-	-	-	-	-
1.483	1.608	1.733	1.858	1.983	2.233	2.483	2.733	2.982	3.232	3.482	3.732	3.982
1.479	-	1.727	-	1.975	2.225	2.473	2.723	2.973	3.223	3.473	3.723	3.973
1.487	-	-	-	-	-	-	-	-	-	-	-	-
1.483	1.608	1.733	1.858	1.983	2.233	2.483	2.733	2.982	3.232	3.482	3.732	3.982
1.381	-	1.609	-	1.843	2.093	2.324	2.574	2.824	3.073	3.323	3.573	3.823
1.438	-	-	-	-	-	-	-	-	-	-	-	-
1.409	1.534	1.659	1.784	1.909	2.158	2.408	2.658	2.908	3.158	3.407	3.657	3.907

①,Stud ends shall be chamfered from the major diameter to a diameter equal to or less than the thread root diameter. The length of the chamfered end to the first full formed thread at major diameter, as determined by the distance the chamfered end enters into a cylindrical NOT GO major diameter ring gage, shall be one to two thread pitches on each end. The ends of the stud shall be reasonably square with the axis of the stud, but the slight rim or cup resulting from manufacturing shall be permissible. The ends shall be suitable for marking.

Alternative history

ASME B 18.31.2 - 2008 ASME B 18.31.2 - 2014

Similar Standards

1	[DIN] DIN 835 - 1995	Stude Threaded End ≈2d View Suppliers
2	[DIN] DIN 938 - 1995	Studs with A Length of Engagement Equal to About 1d View Suppliers
3	[DIN] DIN 938 - 2012	Studs - Metal End ≈ 1 d View Suppliers
4	[IFI] IFI 136 (stud) - 2006	Double End Studs View Suppliers
5	[DIN] DIN 835 - 2025	Studs - Metal End ≈ 2 d View Suppliers
6	[DIN] DIN 939 - 2025	Studs Metal end ≈ 1,25 d View Suppliers
7	[DIN] DIN 939 - 1995	Studs - Metal end ≈ 1,25 d View Suppliers
8	[DIN] DIN 835 - 2010	Studs - Metal End ≈ 2 d View Suppliers
9	[DIN] DIN 835 - 1972	Stude Threaded End ≈2d View Suppliers
10	[GB] GB /T 900 - 1988	Double End Studs-bm=2d View Suppliers
11	[GB] GB /T 901 - 1988	Double End Studs (Clamping Type) - Product Grade B View Suppliers
12	[JIS] JIS B 1173 - 1995	Double Studs View Suppliers
13	[GB] GB /T 898 - 1988	Double End Studs-bm=1.25d View Suppliers
14	[JIS] JIS B 1173 - 2010	Studs View Suppliers
15	[ASME] ASME B 18.31.2 - 2014	Dimensions for Tap-End Studs (1.5d Engagement) (Inch Series)（A193 / A320 / A437 / A453 / A540 / A1014）[Table 3]
16	[DIN] DIN 2510-3 (K) - 1971	Connections with Waisted Stud - Type K
17	[DIN] DIN 2510-4 (GQ) - 1971	Connections with Double End Studs - Type GQ
18	[DIN] DIN 2509 - 1986	Double End Studs
19	[ASME] ASME B 18.31.1M - 2008 (R2016)	Metric Clamping-Type Studs [Table 2] (ASTM F568, F738M, F468M)
20	[ASME] ASME B 18.31.2 - 2014	Dimensions for Clamping Type Studs（A193 / A320 / A437 / A453 / A540 / A1014） (Inch Series) [Table 2]
21	[DIN] DIN 797 - 2009	Special Foundation Bolts
22	[DIN] DIN 2509 - 2016	Double End Studs
23	[ASME] ASME B 18.31.1M - 2008 (R2016)	Metric Tap-End Studs (1.50 Engagement) [Table 3] (ASTM F568, F738M, F468M)
24	[DIN] DIN 2510-4 (HR) - 1971	Connections with Double End Studs - Type HR
25	[DIN] DIN 2510-3 (Z) - 1971	Connections with Waisted Stud - Type Z
26	[DIN] DIN 2510-3 (L) - 1971	Connections with Waisted Stud - Type L
27	[DIN] DIN 797 - 1970	Special Foundation Bolts
28	[DIN] DIN 2510-4 (HS) - 1971	Connections with Double End Studs - Type HS
29	[DIN] DIN 2510-4 (GP) - 1971	Connections with Double End Studs - Type GP
30	[DIN] DIN 949 (-2) - 1995	Studs with Metric Interference Thread MFS - Part 2: Lengths of Engagement ≈ 2.5 d (Type B)
31	[DIN] DIN 2510-3 (ZU) - 1971	Connections with Waisted Stud - Type ZU
32	[DIN] DIN 2510-4 (GS) - 1971	Connections with Double End Studs - Type GS
33	[DIN] DIN 949-1 - 1995	Studs with Metric Interference Thread MFS - Part 1: Lengths of Engagement ≈ 2 d (Type A)
34	[DIN] DIN 940 - 2010	Studs with a Length of Engagement Equal to About 2.5d
35	[DIN] DIN 2510-4 (HP) - 1971	Connections with Double End Studs - Type HP
36	[DIN] DIN 940 - 1995	Studs - Metal End ≈ 2.5d
37	[DIN] DIN 2510-4 (GR) - 1971	Connections with Double End Studs - Type GR
38	[DIN] DIN 6379 - 2003	Studs for Use with T-Nuts ( Long b1 )
39	[IFI] IFI 528 - 1999	Metric Double End Studs
40	[DIN] DIN 6379 - 2003	Studs for Use with T-Nuts
41	[DIN] DIN 2510-3 (KU) - 1971	Connections with Waisted Stud - Type KU
42	[DIN] DIN 2510-4 (HQ) - 1971	Connections with Double End Studs - Type HQ
43	[ASME] ASME B 18.31.2 - 2008	Clamping Type Studs
44	[DIN] DIN 940 - 1983	Studs with a Length of Engagement Equal to About 2.5d
45	[UNI] UNI 5911 - 1966	Medium End Studs -ISO Metric Coarse Thread - Product Grade A
46	[GB] GB /T 13807.2 (S) - 2008	Connections with Waisted Stud - Type S
47	[JIS] JIS A 5542 (A3) - 2003	Bolts of Turnbuckle for Building Made of Rolling Steel - Double Ended Stud
48	[JIS] JIS B 1220 (ABR) - 2015	Set of Anchor Bolt with Rolled Threads for Structures - ABR
49	[JIS] JIS B 1220 (ABM) - 2015	Set of Anchor Bolt with Cut Threads for Structures - ABM
50	[GB] GB /T 13807.2 - 1992	Connections With Waisted Stud-Studs - Type S
51	[GB] GB /T 9125 - 2003	Double End Studs for Pipe Flange Connection
52	[UNI] UNI 5914 - 1966	Long Metal End Studs - ISO Metric Coarse Thread - Finiah A
53	[UNI] UNI 5911 - 1993	Medium End Studs (b1=1.5d)-ISO Metric Coarse Thread - Product Grade A
54	[BS] BS 2693-1 - 1956	Screwd Studs - UNC Thread [Table 4]
55	[BS] BS 2693-1 - 1956	Screwd Studs - B.A. Thread [Table 7]
56	[JIS] JIS A 5540 - 2008	Double-end Dtud Bolt, Carbon Steel and Hot-clip Zinc Coated Carbon Steel
57	[GB] GB /T 9125 - 2010	Double End Studs - Product Grade B for Pipe Flange Connection
58	[GB] GB /T 899 - 1988	Double End Studs b1=1.5d
59	[GB] GB /T 897 - 1988	Double End Studs, bm=1d
60	[GB] GB /T 953 - 1988	Double End Studs(Clamping Type) - Product Grade C
61	[NF] NF E 25-135 - 1986	Studs - Product A and B b1=1.5d
62	[GB] GB /T 9125.1 - 2020	Double End Studs for Pipe Flange Connection - PN Designated
63	[JIS] JIS A 5540 - 2008	Stainless Steel Double-end Stud Bolt
64	[GB] GB /T 13807.2 (L) - 2008	Connections with Waisted Stud - Type L
65	[GB] GB /T 9125 - 2010	Double End Studs for Pipe Flange Connection
66	[GB] GB /T 13807.2 (AD) - 2008	Connections with Waisted Stud - Type AD
67	[GB] GB /T 13807.2 (SD) - 2008	Connections with Waisted Stud - Type SD
68	[GB] GB /T 13807.2 (A) - 2008	Connections with Waisted Stud - Type A
69	[BS] BS 2693-1 - 1956	Screwd Studs - B.S.F. Thread [Table 5]
70	[UNI] UNI 5909 - 1966	Double End Studs, bm=1d
71	[UNI] UNI 5909 - 1993	Double End Studs, bm=1d
72	[JIS] JIS B 1220 - 2010	Set of Anchor Bolt with Rolled Threads for Structures
73	[BS] BS 2693-1 - 1956	Screwd Studs - UNF Thread [Table 3]
74	[NF] NF E 25-135 - 1986	Studs - Product A and B (b1=1d, 1.25d 或 2d)
75	[BS] BS 2693-1 - 1956	Screwd Studs -B.S.W.Thread [Table 6]
76	[YJT] YJT 2003	Double End Studs
77	[CNS] CNS 4605 - 1978	Double End Studs
78	[CNS] CNS 4604 - 1978	Double End Studs
79	[CNS] CNS 4603 - 1978	Double End Studs
80	[CNS] CNS 4609 - 1983	Double End Studs
81	[CNS] CNS 4607 - 1983	Double End Studs for T-Nuts
82	[CNS] CNS 4606 - 1983	Double End Studs
83	[OCT] OCT 26 - 2040 (Type 2) - 1996	Double End Studs - Type 2
84	[OCT] OCT 26 - 2040 (Type 1) - 1996	Double End Studs - Type 1
85	[GOST] GOST 22036 - 1976	Studs with Threaded End of 1,6d. Product Grade B
86	[GOST] GOST 22032 - 1976	Double End Studs
87	[GOST] GOST 28919 - 1991	Flange Connections of Wellhead Equipment - Stud - Modification 2
88	[GOST] GOST 28919 - 1991	Flange Connections of Wellhead Equipment - Stud - Modification 1