94
3410
3411
3412
3413
3410
3411
3412
3413
3410
3411
3412
3413
D
A
B
C
E
F
G
D
C
A
Duplex Cast Padeyes
Not all sailors know this: there are different grades of stainless steel and they 
offer different takes on the balance between structural strength and corrosion 
resistance. Duplex is a class of stainless steel, new to Harken’s pad-eye line-
up. It offers increased amounts of chromium in the alloy for enhanced 
corrosion resistance at very high relative strengths. All sailors should know 
this: Stainless does not mean maintenance free. Make sure to inspect 
structural stainless deck hardware regularly and clean and restore the finish 
as needed.
Part
No.
Description
Maximum working load       
Breaking load       
Fasteners
(FH)
lb
kg
lb
kg
in
mm
Small Square Duplex Padeye
4500
2041
9000
4082
 1/4 
 6 
Medium Square Duplex Padeye
7500
3402
15000
6804
 5/16 
 8 
Medium HL Square Duplex Padeye
10500
4763
21000
9525
 3/8 
 10 
Large Square Duplex Padeye
18000
8165
36000
16329
 1/2 
 12 
Part
No.
Description
A
B
C
D
E
F
G
Weight
in
mm
in
mm
in
mm
in
mm
in
mm
in
mm
in
mm
oz
g
Small Square Duplex Padeye
2
 52
 1 7/8
 48
 1 3/16 
30
 1 3/16 
30
 1 3/16 
 30 
 5/8 
 16 
7/8 
 22
3.8
107
Medium Square Duplex Padeye
2 9/16
 65 
 2 3/8 
 61
1 9/16
39
1 9/16
39
 1 1/2
 38
 13/16 
 21
 1 1/8
 28
7.7
218
Medium HL Square Duplex Padeye
 3 1/8
80
2 15/16 
 75
1 7/8
48
 1 7/8
48
 1 13/16 
 47
1
 25
 1 5/16 
34
14.8
420
Large Square Duplex Padeye
 3 13/16 
 97
 3 1/2 
 90
2 1/4
58
2 1/4
58
 2 1/4
 58
 1 3/16 
 30
1 9/16
 40 
27.9
790
All 3 directions can take the same load.
“ Stainless doesn't mean
maintenance free.”
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