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Continuous Thread Stud（A193 / A320 / A437 / A453/A540/A1014）(Inch Series) [Table 1]

ASME B 18.31.2 - 2014

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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
PP	UNC
	UNF
	8UN
U	UNC	min
		max
	UNF	min
		max
	8UN	min
		max

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
20	18	16	14	13	12	11	10	9	8	7	7	6
28	24	24	20	20	18	18	16	14	12	12	12	12
-	-	-	-	-	-	-	-	-	-	8	8	8
0.050	0.056	0.063	0.072	0.077	0.084	0.091	0.100	0.111	0.125	0.143	0.143	0.167
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
0.036	0.042	0.042	0.050	0.050	0.056	0.056	0.063	0.072	0.084	0.084	0.084	0.084
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
-	-	-	-	-	-	-	-	-	-	0.125	0.125	0.125
-	-	-	-	-	-	-	-	-	-	0.250	0.250	0.250

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
PP	UNC
	UNF
	8UN
U	UNC	min
		max
	UNF	min
		max
	8UN	min
		max

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
6	-	5	-	4 1/2	4 1/2	4	4	4	4	4	4	4
12	-	-	-	-	-	-	-	-	-	-	-	-
8	8	8	8	8	8	8	8	8	8	8	8	8
0.167	-	0.200	-	0.222	0.222	0.250	0.250	0.250	0.250	0.250	0.250	0.250
0.333	-	0.400	-	0.444	0.444	0.500	0.500	0.500	0.500	0.500	0.500	0.500
0.084	-	-	-	-	-	-	-	-	-	-	-	-
0.167	-	-	-	-	-	-	-	-	-	-	-	-
0.125	0.125	0.125	0.125	0.125	0.125	0.125	0.125	0.125	0.125	0.125	0.125	0.125
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,U —— Chamfered Thread Distance:
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	[ASME] ASME B 18.31.2 - 2008	Continuous Thread Studs (ASTM A354 / A449 / F593 / SAE J429)
2	[ASME] ASME B 18.31.1M - 2008 (R2016)	Metric Continuous-Thread Studs [Table 1] (ASTM F568, F738M, F468M)
3	[DIN] DIN 976-1 - 2002	Stud Bolts - Part 1: Metric Thread
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5	[DIN] DIN 976-1 - 2016	Fasteners - Stud Bolts - Part 1: Metric Thread
6	[DIN] DIN 976-1 - 1995	Metric Thread Stud Bolts
7	[DIN] DIN 975 - 1986	Threaded Rods
8	[DIN] DIN 976 - 1986	Stud Bolts
9	[DIN] DIN 976-2 - 1995	Metric Interference-fit Thread Stud Bolts
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19	[YJT] YJT 2001 (DIN 103)	Thread Rods - Trapezoidal Thread (DIN 103)
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21	[CNS] CNS 4610 - 1983	Thread Rods
22	[CNS] CNS 5193 - 1980	Thread Rod