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Lifting Eye Bolt

Selected Lifting Eye Bolt Plain Shoulder5/16-18 Lifting Eye Bolt
Lifting Eye Bolt Plain Shoulder5/16-18 Lifting Eye Bolt

ASTM A489 Type 1 Lifting Eye Bolts are forged, carbon steel threaded eye bolts intended for use with tapped holes that have been engineered as a lifting point. Dimensional specifications are governed by ASME B18.15 in sizes 1/4" through 2-1/2". According to ASME B30.26 - Rigging Hardware, each eye bolt shall be marked to show: 1. Name or trademark of manufacturer, 2. Size or rated load and 3. Grade for alloy eye bolts. 

Products

Governing Standards

ASTM A489 Covers weldless forged, quenched, and tempered carbon steel threaded lifting eyes (formerly eyebolts) for overhead lifting.
ASME B18.15 Covers dimensions and capacities for carbon and stainless steel forged threaded eyebolts in sizes ¼ through 2-1/2 inch for steel and ¼ through 1-1/2” for corrosion resistant stainless steel intended primarily for lifting applications.
ASME B1.1
UNC Class 2A		 Specifies the thread form, series, class, allowance, tolerance, and designation for unified screw threads.

Chemical Properties

Per ASTM A489-12
Analysis Type Carbon Manganese Phosphorus Sulfur Silicon
Max Max Max Max % by weight
Heat Analysis 0.48 1.00 0.040 0.050 0.15 - 0.35
Product Analysis 0.51 1.06 0.048 0.058 0.12 - 0.38

Load Ratings

Weldless Forged, Quenched and Tempered Carbon Steel Per ASTM A489-12
Nominal
Thread
Size		 Thread
Pitch		 Tensile Stress
AreaA		 Breaking Strength Proof LoadB *Rated
Capacity lbs
Min Min
Inch Pound Units
in. in.2 lbf lbf
1/4 20 0.0318 2 100 800 500
5/16 18 0.0524 3 400 1 360 900
3/8 16 0.0775 5 000 2 000 1,300
7/16 14 0.1063 6 900 2 760 1,800
1/2 13 0.1419 9 200 3 680 2,400
9/16 12 0.1820 11 830 4 740 3,000
5/8 11 0.2260 14 700 5 880 4,000
3/4 10 0.3340 21 700 8 680 5,000
7/8 9 0.4620 30 000 12 000 7,000
1 8 0.6060 39 400 15 760 9,000
1 1/8 7 0.7630 49 600 19 840 12,000
1 1/4 7 0.9690 63 000 25 200 15,000
1 1/2 6 1.4100 91 600 36 520 21,000
1 3/4 5 1.9000 123 500 49 400 28,000
2 4 2.5000 162 500 65 000 38,000
2 1/2 4 4.0000 260 000 104 000 56,000
  1. AThe stress area is calculated as follows: As=0.7854 [D - (0.9743/n)]2
  2. Where:
  3. As = stress area, in.2,
  4. D = nominal bolt size, and
  5. n = threads per inch.
  6. BProof load is calculated as 2 times the rated capacity in straight pull (0 degrees) specified in ASME B18.15.
  7. *NOTE: Rated capacity is for zero degree vertical pulls. Please Shoulder Eyebolt Rated Capacity/Guidelines for complete lifting information. Swivel Hoist Rings are recommended for angular lifts. Per ASME B18.15-1985 (R1995).

Mechanical Properties

Weldless Forged, Quenched and Tempered Carbon Steel Per ASTM A489-12
Tensile
Strength		 Tensile
Strength		 Yield Point Yield Point Elongation
in 4D		 Reduction
of Area
psi (MPa) Min psi Min (MPa) Min % Min %
65 000-90 000 (448-620) 30 000 -207 30 60

Dimensional Specifications

Lifting Eye Bolt dimensions
Per ASME B18.15-1985 (R1995)
Nominal
Diameter		 UNC A B C D E F G H J
Shank
Diameter		 Shank Length Eye Inside
Diameter		 Eye
Outside
Diameter		 Overall Length Eye Section
Diameter		 Shoulder
Diameter		 Shoulder
Thickness		 Eye to
Shoulder
Min Max Min Max Min Max Min Max Min Max Min Max Min Max
1/4 20 0.25 1.00 1.06 0.69 0.81 1.19 2.22 2.53 0.19 0.25 0.50 0.56 0.12 0.19 0.69 0.81
5/16 18 0.31 1.12 1.19 0.81 0.94 1.44 2.66 2.97 0.25 0.31 0.56 0.62 0.12 0.19 0.88 1.00
3/8 16 0.38 1.25 1.38 0.94 1.06 1.69 3.09 3.47 0.31 0.38 0.62 0.69 0.12 0.19 1.06 1.19
7/16 14 0.44 1.38 1.50 1.00 1.12 1.81 3.41 3.78 0.34 0.41 0.75 0.81 0.19 0.25 1.19 1.31
1/2 13 0.50 1.50 1.62 1.12 1.25 2.12 3.81 4.19 0.44 0.50 0.88 0.94 0.19 0.25 1.31 1.44
9/16 12 0.56 1.62 1.75 1.19 1.31 2.25 4.19 4.56 0.47 0.53 0.94 1.00 0.22 0.28 1.50 1.62
5/8 11 0.62 1.75 1.88 1.31 1.44 2.56 4.56 4.94 0.56 0.62 1.00 1.06 0.25 0.31 1.59 1.72
3/4 10 0.75 2.00 2.12 1.44 1.56 2.81 5.06 5.50 0.62 0.69 1.12 1.25 0.25 0.31 1.72 1.91
7/8 9 0.88 2.25 2.38 1.56 1.69 3.19 5.75 6.19 0.75 0.81 1.31 1.44 0.31 0.38 2.03 2.22
1 8 1.00 2.50 2.62 1.69 1.81 3.56 6.44 6.88 0.88 0.94 1.50 1.62 0.38 0.44 2.22 2.41
1 1/8 7 1.12 2.75 2.88 1.94 2.06 4.06 7.31 7.75 1.00 1.06 1.69 1.81 0.44 0.50 2.59 2.78
1 1/4 7 1.25 3.00 3.12 2.12 2.25 4.44 8.00 8.44 1.09 1.16 1.88 2.00 0.50 0.56 2.84 3.03
1 1/2 6 1.50 3.50 3.62 2.44 2.56 5.19 9.22 9.72 1.31 1.38 2.12 2.25 0.50 0.62 3.19 3.44
1 3/4 5 1.75 3.75 3.88 2.75 3.00 6.00 10.50 11.12 1.50 1.62 2.50 2.62 0.50 0.62 3.88 4.12
2 4.5 2.00 4.00 4.12/4.25 3.06 3.44 6.88 11.53 12.22 1.75 1.88 2.88 3.00 0.62 0.75 4.25 4.50
2 1/2 4 2.50 5.00 5.25 3.81 4.19 8.50 14.59 15.40 2.19 2.31 3.62 3.75 0.88 1.00 5.50 5.75
  1. All dimensions are in inches.