Click Specification

Dimensions for Clamping Type Studs（A193 / A320 / A437 / A453 / A540 / A1014） (Inch Series) [Table 2]

ASME B 18.31.2 - 2014

Display drawing:

Screw Thread
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	min	When L≤10
		When 10＜L≤16
		When L＞16
U	max	UNC
		UNF
		8UN
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
0.750	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
0.100	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
0.2500	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

Screw Thread
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	min	When L≤10
		When 10＜L≤16
		When L＞16
U	max	UNC
		UNF
		8UN
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
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
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
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

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