Metric Size, Steel
Safety Swivel Lifting Eye Bolts
GN 581
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Specification
Information

Ring: Forged steel, annealed, bright pink powder coated finish   Threaded socket head bolt: Steel, European standard 10.9 grade
Hex key cover plate: Zinc plated steel

GN 581 swivel lifting eye bolts offer a high load carrying capacity and are tested to meet high safety standards. The nominal values for load capacity in the table are for the most disadvantageous loading conditions.  
Unlike DIN 580 lifting eye bolts, the GN 581 lifting eye ring is mounted in a bearing and can be rotated. The ring can be positioned in the direction of the load to make use of its optimum strength. The higher load bearing capacity as compared with DIN 580 lifting eye bolts permits the use of smaller mounting bolts.  
The special cap screw cannot be removed from the ring.
Lifting eye bolts, see DIN 580.
Lifting eyes, see DIN 582.
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Dimensions in:

millimeters
(inches)

Part Number d1
Thread		 d2 d3 d4 d5 d6
max.
 h k1 k2 l1 Nominal
Load (N)
10NHDB/B
Download the CAD		 M10 x 1.5  14
(.55)		 25
(.98)		 28
(1.10)		 25
(.98)		 10
(.39)		 45
(1.77)		 8.5
(.33)		 47
(1.85)		 15
(.59)		 4000 
12NHDB/B
Download the CAD		 M12 x 1.75  18
(.71)		 30
(1.18)		 34
(1.34)		 30
(1.18)		 12
(.47)		 55
(2.17)		 10
(.39)		 56
(2.20)		 18
(.71)		 7500 
16NHDB/B
Download the CAD		 M16 x 2.0  22
(.87)		 35
(1.38)		 40
(1.57)		 35
(1.38)		 16
(.63)		 64
(2.52)		 14
(.55)		 65
(2.56)		 24
(.94)		 15000 
20NHDB/B
Download the CAD		 M20 x 2.5  27.5
(1.08)		 40
(1.57)		 50
(1.97)		 40
(1.57)		 20
(.79)		 74
(2.91)		 16
(.63)		 75
(2.95)		 30
(1.18)		 23000 
24NHDB/B *
Download the CAD		 M24 x 3.0  33
(1.30)		 48
(1.89)		 60
(2.36)		 48
(1.89)		 24
(.94)		 90
(3.54)		 19
(.75)		 90
(3.54)		 36
(1.42)		 32000 
30NHDB/B *
Download the CAD		 M30 x 3.5  41.5
(1.63)		 60
(2.36)		 75
(2.95)		 60
(2.36)		 30
(1.18)		 112
(4.41)		 24
(.94)		 112
(4.41)		 45
(1.77)		 45000 
36NHDB/B *
Download the CAD		 M36 x 4.0  49.5
(1.95)		 75
(2.95)		 90
(3.54)		 72
(2.83)		 36
(1.42)		 135
(5.31)		 29
(1.14)		 135
(5.31)		 54
(2.13)		 70000 
 
Application and Mounting Information
Method of
Mounting
Number of
Angles of
inclination		 1
0° 		1
90° 		2
0° 		2
90° 		2
0 - 45° 		2
45 - 60°		 2
asymetrical 		3 and 4
0 - 45°		 3 and 4
45 - 60°		 3 and 4
asymetrical
Factor 1 1 2 2 2 1 1 2.1 1.5 1
M10 x 1.5 1.00
(.23) 		.40 2.00
(.46) 		.80 .56
(.17) 		.40 .40 .84 .60 .40
M12 x 1.75 2.00
(.34) 		.75 4.00
(.68) 		1.50 1.00
 (.24) 		.75 .75 1.60 1.12 .75
M16 x 2.0 4.00
(.70) 		1.50 8.00
(1.40) 		3.00 2.10
(.50) 		1.50 1.50 3.15 2.25 1.50
M20 x 2.5 6.00
(1.20) 		2.30 12.00
(2.40) 		4.60 3.22
(.83) 		2.30 2.30 4.83 3.45 2.30
M24 x 3.0 8.00
(1.80) 		3.20 16.00
(3.60) 		6.40 4.48
(1.22) 		3.20 3.20 6.70 4.80 3.20
M30 x 3.5 12.00
(3.60) 		4.50 24.00
(7.20) 		9.00 6.30
 (2.60) 		4.50 4.50 9.40 6.70 4.50
M36 x 4.0 16.00
(5.10) 		7.00 32.00
(10.20) 		14.00 9.80
(3.70) 		7.00 7.00 14.70 10.50 7.00
 
The values given in brackets refer to the load capacity of the corresponding lifting eye bolt DIN 580. If such a value is not indicated the use of lifting eye bolts DIN 580 is not permitted.  
In the case of assymetrical load distribution, each eye bolt must be capable of carrying the total load alone.  
In the case of load method G1, no cross load forces are exerted on the eye bolts.  
The load values given apply for the following data: Material: mild steel, tensile strength >= 37 kp/mm2 Mounting thread length: l2 >= d x d1 Load capacity for other materials and mounting length of thread on request.
Furthermore it has to be taken into consideration that the countersink equals ¾ d6. The shoulder of the socket screw must be in full contact with the surface and the eye bolt must be able to rotate through 360°.
Safety swivel lifting eye bolts may be supplied with a hexagon spanner (Form B), or without (Form A). This flat spanner is removable.