Forged Eyebolts

ASME B18.15 Standard is limited to dimensions and capacities for carbon steel and corrosion-resistant stainless steel, forged threaded eyebolts intended primarily for lifting applications . For carbon steel construction, the sizes are limited to 1 ⁄4 in . through 2 1 ⁄2 in . , and for corrosion-resistant stainless steel construction, the sizes are limited to 1 ⁄4 in. through 1 1 ⁄2 in. This Standard covers the following types and styles:

• (a) Type 1 , p lain pattern (straight shank) (see Table 1 )
  • (1 ) Style A, long length
  • (2 ) Style B, short length
• (b) Type 2, shoulder pattern (see Table 2)
  • (1 ) Style A, long length
  • (2 ) Style B, short length

Nonmandatory Appendices A and B contain descriptive and cautionary information pertinent to forged eyebolts. Nonmandatory Appendix C contains information on the application of eyebolts. Nonmandatory Appendix D provides information on eyebolts with metric threads M6 through M64 and corresponding material and performance information.
The inclusion of dimensional data in this Standard is not intended to imply that all products described are stock production items . Consumers should consult with supp liers concerning availability of products .

ASME B18.15 Type 1 , Styles A and B Plain Pattern (Straight Shank) Eyebolt (mm)

Nominal Size		Major Thread Dia., A (mm)	Shank Length, B (mm)		Eye I.D., C (mm)	Nominal Eye O.D., D (mm)	Eye Sect. Dia., E (mm)	Overall Length, F (mm)	Min. Length Full Thread, G (mm)		Thread Size UNC 2A, H
			Style A	Style B					Style A	Style B
1/4	0.25	6.35	25.40	25.40	17.53	30.23	4.83	52.32	19.05	19.05	1/4-20 or 0.250-20
		7.11	26.92	26.92	20.57		6.35	60.45
5/16	0.31	7.87	28.45	26.92	20.57	36.58	6.35	61.98	20.57	19.05	5/16-18 or 0.3125-18
		8.64	30.23	28.70	23.88		7.87	69.85
3/8	0.38	9.65	31.75	28.45	23.88	42.93	7.87	71.37	22.35	19.05	3/8-16 or 0.375-16
		10.41	35.05	31.75	26.92		9.65	81.03
7/16	0.44	11.18	35.05	28.70	25.40	45.97	8.64	77.72	25.40	19.05	7/16-14 or 0.4375-14
		11.94	38.10	31.75	28.45		10.41	87.38
1/2	0.50	12.70	38.10	28.70	28.45	53.85	11.18	88.90	28.45	19.05	1/2-13 or 0.500-13
		13.46	41.15	31.75	31.75		12.70	98.55
9/16	0.56	14.22	41.15	30.73	30.23	57.15	11.94	95.25	31.75	21.34	9/16-12 or 0.5625-12
		14.99	44.45	34.04	33.27		13.46	104.65
5/8	0.62	15.75	44.45	33.27	33.27	65.02	14.22	106.43	35.05	23.88	5/8-11 or 0.625-11
		16.76	47.75	36.58	36.58		15.75	115.82
3/4	0.75	19.05	50.80	38.10	36.58	71.37	15.75	119.13	41.15	28.70	3/4-10 or 0.750-10
		19.81	53.85	41.15	39.62		17.53	128.52
7/8	0.88	22.35	57.15	44.45	39.62	81.03	19.05	134.87	45.97	33.27	7/8-9 or 0.875-9
		23.11	60.45	47.75	42.93		20.57	144.53
1	1.00	25.40	63.50	49.28	42.93	90.42	22.35	150.88	52.32	38.10	1-8 or 1.000-8
		26.92	66.55	52.32	45.97		23.88	160.27
1 1/8	1.12	28.45	69.85	54.10	49.28	103.12	25.40	169.93	58.67	42.93	1 1/8-7 or 1.125-7
		30.23	73.15	57.40	52.32		26.92	179.32
1 1/4	1.25	31.75	76.20	60.45	53.85	112.78	27.69	185.67	63.50	47.75	1 1/4-7 or 1.250-7
		34.04	79.25	63.50	57.15		29.46	195.33
1 1/2	1.50	38.10	88.90	69.85	61.98	131.83	33.27	217.42	76.20	57.15	1 1/2-6 or 1.500-6
		40.39	91.95	72.90	65.02		35.05	227.08
1 3/4	1.75	44.45	95.25	80.77	69.85	152.40	38.10	241.30	81.03	66.55	1 3/4-5 or 1.750-5
		46.74	98.55	84.07	76.20		41.15	257.05
2	2.00	50.80	101.60	91.95	77.72	174.75	44.45	268.22	85.85	76.20	2-4 1/2 or 2.000-4.50
		53.09	107.95	98.30	87.38		47.75	290.58
2 1/2	2.50	63.50	127.00	114.30	96.77	215.90	55.63	335.03	107.95	95.25	2 1/2-4 or 2.500-4
		66.55	133.35	120.65	106.43		58.67	357.12

ASME B18.15 Type 1 , Styles A and B Plain Pattern (Straight Shank) Eyebolt (Inch)

Nominal Size		Major Thread Dia., A	Shank Length, B		Eye I.D., C	Nominal Eye O.D., D	Eye Sect. Dia., E	Overall Length, F	Min. Length Full Thread, G		Thread Size UNC 2A, H
			Style A	Style B					Style A	Style B
1/4	0.25	0.25	1.00	1.00	0.69	1.19	0.19	2.06	0.75	0.75	1/4-20 or 0.250-20
		0.28	1.06	1.06	0.81		0.25	2.38
5/16	0.31	0.31	1.12	1.06	0.81	1.44	0.25	2.44	0.81	0.75	5/16-18 or 0.3125-18
		0.34	1.19	1.13	0.94		0.31	2.75
3/8	0.38	0.38	1.25	1.12	0.94	1.69	0.31	2.81	0.88	0.75	3/8-16 or 0.375-16
		0.41	1.38	1.25	1.06		0.38	3.19
7/16	0.44	0.44	1.38	1.13	1.00	1.81	0.34	3.06	1.00	0.75	7/16-14 or 0.4375-14
		0.47	1.50	1.25	1.12		0.41	3.44
1/2	0.50	0.50	1.50	1.13	1.12	2.12	0.44	3.50	1.12	0.75	1/2-13 or 0.500-13
		0.53	1.62	1.25	1.25		0.50	3.88
9/16	0.56	0.56	1.62	1.21	1.19	2.25	0.47	3.75	1.25	0.84	9/16-12 or 0.5625-12
		0.59	1.75	1.34	1.31		0.53	4.12
5/8	0.62	0.62	1.75	1.31	1.31	2.56	0.56	4.19	1.38	0.94	5/8-11 or 0.625-11
		0.66	1.88	1.44	1.44		0.62	4.56
3/4	0.75	0.75	2.00	1.50	1.44	2.81	0.62	4.69	1.62	1.13	3/4-10 or 0.750-10
		0.78	2.12	1.62	1.56		0.69	5.06
7/8	0.88	0.88	2.25	1.75	1.56	3.19	0.75	5.31	1.81	1.31	7/8-9 or 0.875-9
		0.91	2.38	1.88	1.69		0.81	5.69
1	1.00	1.00	2.50	1.94	1.69	3.56	0.88	5.94	2.06	1.50	1-8 or 1.000-8
		1.06	2.62	2.06	1.81		0.94	6.31
1 1/8	1.12	1.12	2.75	2.13	1.94	4.06	1.00	6.69	2.31	1.69	1 1/8-7 or 1.125-7
		1.19	2.88	2.26	2.06		1.06	7.06
1 1/4	1.25	1.25	3.00	2.38	2.12	4.44	1.09	7.31	2.50	1.88	1 1/4-7 or 1.250-7
		1.34	3.12	2.50	2.25		1.16	7.69
1 1/2	1.50	1.50	3.50	2.75	2.44	5.19	1.31	8.56	3.00	2.25	1 1/2-6 or 1.500-6
		1.59	3.62	2.87	2.56		1.38	8.94
1 3/4	1.75	1.75	3.75	3.18	2.75	6.00	1.50	9.50	3.19	2.62	1 3/4-5 or 1.750-5
		1.84	3.88	3.31	3.00		1.62	10.12
2	2.00	2.00	4.00	3.62	3.06	6.88	1.75	10.56	3.38	3.00	2-4 1/2 or 2.000-4.50
		2.09	4.25	3.87	3.44		1.88	11.44
2 1/2	2.50	2.50	5.00	4.50	3.81	8.50	2.19	13.19	4.25	3.75	2 1/2-4 or 2.500-4
		2.62	5.25	4.75	4.19		2.31	14.06

ASME B18.15 Type 2 , Styles A and B Shoulder Pattern Eyebolt (mm)

Nominal Size		Major Thread Dia., A (mm)	Shank Length, B (mm)		Eye I.D., C (mm)	Nominal Eye O.D., D (mm)	Eye Sect. Dia., E (mm)	Overall Length, F (mm)	Min. Length Full Thread, G (mm)		Thread Size UNC 2A, H	Centerline Eye to Shoulder, J (mm)	Shoulder Dia., K (mm)	Shoulder Height, L (mm)	Radius Under Shoulder, R (mm)
			Style A	Style B					Style A	Style B
1/4	0.25	6.35	25.40	25.40	17.53	30.23	4.83	56.39	19.05	19.05	1/4-20 or 0.250-20	17.53	12.70	3.05	0.38
		7.11	26.92	26.92	20.57		6.35	64.26				20.57	14.22	4.83	0.64
5/16	0.31	7.87	28.45	26.92	20.57	36.58	6.35	67.56	20.57	19.05	5/16-18 or 0.3125-18	22.35	14.22	3.05	0.38
		8.64	30.23	28.70	23.88		7.87	75.44				25.40	15.75	4.83	0.64
3/8	0.38	9.65	31.75	28.45	23.88	42.93	7.87	78.49	22.35	19.05	3/8-16 or 0.375-16	26.92	15.75	3.05	0.38
		10.41	35.05	31.75	26.92		9.65	88.14				30.23	17.53	4.83	0.64
7/16	0.44	11.18	35.05	28.70	25.40	45.97	8.64	86.61	25.40	19.05	7/16-14 or 0.4375-14	30.23	19.05	4.83	0.38
		11.94	38.10	31.75	28.45		10.41	96.01				33.27	20.57	6.35	0.64
1/2	0.50	12.70	38.10	28.70	28.45	53.85	11.18	96.77	28.45	19.05	1/2-13 or 0.500-13	33.27	22.35	4.83	0.38
		13.46	41.15	31.75	31.75		12.70	106.43				36.58	23.88	6.35	0.64
9/16	0.56	14.22	41.15	30.73	30.23	57.15	11.94	106.43	31.75	21.34	9/16-12 or 0.5625-12	38.10	23.88	5.59	0.51
		14.99	44.45	34.04	33.27		13.46	115.82				41.15	25.40	7.11	1.14
5/8	0.62	15.75	44.45	33.27	33.27	65.02	14.22	115.82	35.05	23.88	5/8-11 or 0.625-11	40.39	25.40	6.35	0.51
		16.76	47.75	36.58	36.58		15.75	125.48				43.69	26.92	7.87	1.14
3/4	0.75	19.05	50.80	38.10	36.58	71.37	15.75	128.52	41.15	28.45	3/4-10 or 0.750-10	43.69	28.45	6.35	0.51
		19.81	53.85	41.15	39.62		17.53	139.70				48.51	31.75	7.87	1.14
7/8	0.88	22.35	57.15	44.45	39.62	81.03	19.05	146.05	45.97	33.27	7/8-9 or 0.875-9	51.56	33.27	7.87	1.02
		23.11	60.45	47.75	42.93		20.57	157.23				56.39	36.58	9.65	1.65
1	1.00	25.40	63.50	49.28	42.93	90.42	22.35	163.58	52.32	38.10	1-8 or 1.000-8	56.39	38.10	9.65	1.52
		26.92	66.55	52.32	45.97		23.88	174.75				61.21	41.15	11.18	2.41
1 1/8	1.12	28.45	69.85	54.10	49.28	103.12	25.40	185.67	58.67	42.93	1 1/8-7 or 1.125-7	65.79	42.93	11.18	1.52
		30.23	73.15	57.40	52.32		26.92	196.85				70.61	45.97	12.70	2.41
1 1/4	1.25	31.75	76.20	60.45	53.85	112.78	27.69	203.20	63.50	47.75	1 1/4-7 or 1.250-7	72.14	47.75	12.70	1.52
		34.04	79.25	63.50	57.15		29.46	214.38				76.96	50.80	14.22	2.41
1 1/2	1.50	38.10	88.90	69.85	61.98	131.83	33.27	234.19	76.20	57.15	1 1/2-6 or 1.500-6	81.03	53.85	12.70	1.52
		40.39	91.95	72.90	65.02		35.05	246.89				87.38	57.15	15.75	2.41
1 3/4	1.75	44.45	95.25	80.77	69.85	152.40	38.10	266.70	81.03	66.55	1 3/4-5 or 1.750-5	98.55	63.50	12.70	1.52
		46.74	98.55	84.07	76.20		41.15	282.45				104.65	66.55	15.75	2.41
2	2.00	50.80	101.60	91.95	77.72	174.75	44.45	292.86	85.85	76.20	2-4 1/2 or 2.000-4.50	107.95	73.15	15.75	1.52
		53.09	104.65	96.27	87.38		47.75	310.39				114.30	76.20	19.05	2.41

ASME B18.15 Type 2 , Styles A and B Shoulder Pattern Eyebolt (Inch)

Nominal Size		Major Thread Dia., A	Shank Length, B		Eye I.D., C	Nominal Eye O.D., D	Eye Sect. Dia., E	Overall Length, F	Min. Length Full Thread, G		Thread Size UNC 2A, H	Centerline Eye to Shoulder, J	Shoulder Dia., K	Shoulder Height, L	Radius Under Shoulder, R
			Style A	Style B					Style A	Style B
1/4	0.25	0.25	1.00	1.00	0.69	1.19	0.19	2.22	0.75	0.75	1/4-20 or 0.250-20	0.69	0.50	0.12	0.015
		0.28	1.06	1.06	0.81		0.25	2.53				0.81	0.56	0.19	0.025
5/16	0.31	0.31	1.12	1.06	0.81	1.44	0.25	2.66	0.81	0.75	5/16-18 or 0.3125-18	0.88	0.56	0.12	0.015
		0.34	1.19	1.13	0.94		0.31	2.97				1.00	0.62	0.19	0.025
3/8	0.38	0.38	1.25	1.12	0.94	1.69	0.31	3.09	0.88	0.75	3/8-16 or 0.375-16	1.06	0.62	0.12	0.015
		0.41	1.38	1.25	1.06		0.38	3.47				1.19	0.69	0.19	0.025
7/16	0.44	0.44	1.38	1.13	1.00	1.81	0.34	3.41	1.00	0.75	7/16-14 or 0.4375-14	1.19	0.75	0.19	0.015
		0.47	1.50	1.25	1.12		0.41	3.78				1.31	0.81	0.25	0.025
1/2	0.50	0.50	1.50	1.13	1.12	2.12	0.44	3.81	1.12	0.75	1/2-13 or 0.500-13	1.31	0.88	0.19	0.015
		0.53	1.62	1.25	1.25		0.50	4.19				1.44	0.94	0.25	0.025
9/16	0.56	0.56	1.62	1.21	1.19	2.25	0.47	4.19	1.25	0.84	9/16-12 or 0.5625-12	1.50	0.94	0.22	0.020
		0.59	1.75	1.34	1.31		0.53	4.56				1.62	1.00	0.28	0.045
5/8	0.62	0.62	1.75	1.31	1.31	2.56	0.56	4.56	1.38	0.94	5/8-11 or 0.625-11	1.59	1.00	0.25	0.020
		0.66	1.88	1.44	1.44		0.62	4.94				1.72	1.06	0.31	0.045
3/4	0.75	0.75	2.00	1.50	1.44	2.81	0.62	5.06	1.62	1.12	3/4-10 or 0.750-10	1.72	1.12	0.25	0.020
		0.78	2.12	1.62	1.56		0.69	5.50				1.91	1.25	0.31	0.045
7/8	0.88	0.88	2.25	1.75	1.56	3.19	0.75	5.75	1.81	1.31	7/8-9 or 0.875-9	2.03	1.31	0.31	0.040
		0.91	2.38	1.88	1.69		0.81	6.19				2.22	1.44	0.38	0.065
1	1.00	1.00	2.50	1.94	1.69	3.56	0.88	6.44	2.06	1.50	1-8 or 1.000-8	2.22	1.50	0.38	0.060
		1.06	2.62	2.06	1.81		0.94	6.88				2.41	1.62	0.44	0.095
1 1/8	1.12	1.12	2.75	2.13	1.94	4.06	1.00	7.31	2.31	1.69	1 1/8-7 or 1.125-7	2.59	1.69	0.44	0.060
		1.19	2.88	2.26	2.06		1.06	7.75				2.78	1.81	0.50	0.095
1 1/4	1.25	1.25	3.00	2.38	2.12	4.44	1.09	8.00	2.50	1.88	1 1/4-7 or 1.250-7	2.84	1.88	0.50	0.060
		1.34	3.12	2.50	2.25		1.16	8.44				3.03	2.00	0.56	0.095
1 1/2	1.50	1.50	3.50	2.75	2.44	5.19	1.31	9.22	3.00	2.25	1 1/2-6 or 1.500-6	3.19	2.12	0.50	0.060
		1.59	3.62	2.87	2.56		1.38	9.72				3.44	2.25	0.62	0.095
1 3/4	1.75	1.75	3.75	3.18	2.75	6.00	1.50	10.50	3.19	2.62	1 3/4-5 or 1.750-5	3.88	2.50	0.50	0.060
		1.84	3.88	3.31	3.00		1.62	11.12				4.12	2.62	0.62	0.095
2	2.00	2.00	4.00	3.62	3.06	6.88	1.75	11.53	3.38	3.00	2-4 1/2 or 2.000-4.50	4.25	2.88	0.62	0.060
		2.09	4.12	3.79	3.44		1.88	12.22				4.50	3.00	0.75	0.095

ASME B18.15 Type 1 , Plain Pattern (Straight Shank) Eyebolt (kg)

Nominal Size	Carbon, Alloy Steel, and Corrosion-Resistant Stainless Steel Rated Rigger's Capacity, kg
	0 deg	30 deg	60 deg	90 deg
1/4	181.44	31.75	NR	NR
5/16	308.44	90.72	NR	NR
3/8	453.59	170.10	90.72	70.31
7/16	625.96	226.80	136.08	106.59
1/2	834.61	365.14	213.19	179.17
5/8	1075.01	501.22	288.03	235.87
3/4	1333.56	607.81	365.14	303.91
7/8	1968.59	959.35	539.77	471.74
1	2721.55	1276.82	789.25	669.05
1 1/8	3574.31	1664.68	1084.09	957.08
1 1/4	4499.63	2113.74	1365.31	1183.88
1 3/8	5715.26	2674.38	1701.88	1519.53
1 1/2	8282.59	3889.55	2492.49	2249.82
1 3/4	11203.72	5227.20	3401.94	3039.07
2	14741.74	6899.13	4497.36	4027.90
2 1/2	23586.78	11113.00	7620.35	6350.29

ASME B18.15 Type 1 , Plain Pattern (Straight Shank) Eyebolt (lb)

Nominal Size	Carbon, Alloy Steel, and Corrosion-Resistant Stainless Steel Rated Rigger's Capacity, lb
	0 deg	30 deg	60 deg	90 deg
1/4	400	70	NR	NR
5/16	680	200	NR	NR
3/8	1,000	375	200	155
7/16	1,380	500	300	235
1/2	1,840	805	470	395
5/8	2,370	1,105	635	520
3/4	2,940	1,340	805	670
7/8	4,340	2,115	1,190	1,040
1	6,000	2,815	1,740	1,475
1 1/8	7,880	3,670	2,390	2,110
1 1/4	9,920	4,660	3,010	2,610
1 3/8	12,600	5,896	3,752	3,350
1 1/2	18,260	8,575	5,495	4,960
1 3/4	24,700	11,524	7,500	6,700
2	32,500	15,210	9,915	8,880
2 1/2	52,000	24,500	16,800	14,000

ASME B18.15 Type 2 , Shoulder Pattern Eyebolt (kg)

Nominal Size	Carbon, Alloy Steel, and Corrosion-Resistant Stainless Steel Rated Rigger's Capacity (kg)
	0 deg	30 deg	60 deg	90 deg
1/4	181.44	34.02	NR	NR
5/16	308.44	95.25	NR	NR
3/8	453.59	181.44	99.79	81.65
7/16	625.96	240.40	149.69	117.93
1/2	834.61	385.55	235.87	199.58
5/8	1075.01	526.17	317.51	258.55
3/4	1333.56	639.56	403.70	335.66
7/8	1968.59	1011.51	594.21	517.09
1	2721.55	1342.63	866.36	739.35
1 1/8	3574.31	1746.33	1192.95	1052.33
1 1/4	4499.63	2172.71	1741.79	1537.68
1 3/8	5715.26	2812.27	1871.07	1673.75
1 1/2	8282.59	4086.86	2739.69	2476.61
1 3/4	11203.72	5488.46	3742.13	3342.97
2	14741.74	7243.86	4948.69	4417.99

ASME B18.15 Type 2 , Shoulder Pattern Eyebolt (lb)

Nominal Size	Carbon, Alloy Steel, and Corrosion-Resistant Stainless Steel Rated Rigger's Capacity, lb
	0 deg	30 deg	60 deg	90 deg
1/4	400	75	NR	NR
5/16	680	210	NR	NR
3/8	1,000	400	220	180
7/16	1,380	530	330	260
1/2	1,840	850	520	440
5/8	2,370	1,160	700	570
3/4	2,940	1,410	890	740
7/8	4,340	2,230	1,310	1,140
1	6,000	2,960	1,910	1,630
1 1/8	7,880	3,850	2,630	2,320
1 1/4	9,920	4,790	3,840	3,390
1 3/8	12,600	6,200	4,125	3,690
1 1/2	18,260	9,010	6,040	5,460
1 3/4	24,700	12,100	8,250	7,370
2	32,500	15,970	10,910	9,740