Steel Strapping Supplies

Steel Strapping Seals

Seal Types

Snap-on Seals

Placed over the overlapping strap ends
either durring or after tensioning the
strapping. Eliminates pre-threading.
Speeds the strapping operation.

Push-type Seals

Used where strap is tensioned by butting the nose of the tensioner against the seal.  Overlapping flanges withstand the higher stress.

Thread-on Seals

Must be threaded over the overlapping
strap ends before the tensioning tool is
applied. Generally used on bales,
bundles and the larger strap sizes.

Nestack Seals

Held together by interlocking nibs.  This development permits loading partial stacks into magazines of seal feed combination tools and power strapping machines.

Open-flange Seals

Heavy-duty version of the snap-on.
Requires no pre-threading.

Microgrip Seals

For severe-impact applications where waxed strapping is used. Microgrip seals are coated inside with a high-friction grit which bites through the wax to provide maximum holding power.

Basic Seal Joint Types

Sealless Joint

Sealless Joints can be made with manual or pneumatic combinatin tools. Using interlocking keys, the sealless joints provide static joint strength equal to that of notch-type joints.  The reverse lock sealless joint features one reversed interlocking key for added security in impact conditions.

Notch Joint

Notch joints mechanically lock strapping ends together. The sealer cuts through the seal and strapping to from one or two sets of tabs.  The tabs are pushed down (down notch) or up (reverse notch).  Notch joints are typically used on waxed strapping in packaging and unitizing applications.

Crimp Joint

Another way to seal the ends of strapping is to press, or “crimp” undulations into the seal and strapping ends.  The strength of the crimp joint comes from the deformed seal creating high frictional forces. Crimp joints produce high static and dynamic joint strengths and are used on applications like car loading, where the strapped load is subject to severe impact.

Seal Specifications

Seal Name

Strap Size

Seal Type

Joint Type

Seal Strength

Guage

Standard Package

Approx. sjipping Weight

inch

mm

inch

mm

inch

mm

Number Seals

lbs

kg

38 AL

3/8

9.5

Nestack

Double Notch

0.860

21.8

.014

.356

14,400

49

22

38 C

Snap-On

1.120

28.4

.020

.508

5,000

19

9

38 MN-MNS

Nestack

0.680

17.3

.017

.432

10,200

31

14

38 MNA

Nestack

Single Notch

0.750

19.1

.018

.457

10,200

31

14

38 SPC

Push

1.120

28.4

.024

.610

5,000

39

18

12 AL

1/2

12.7

Nestack

Double Notch

0.860

21.8

.014

.356

10,500

34

16

12 AMP

Nestack

1.120

28.4

.020

.508

7,000

44

20

12 C

Snap-On

Single Notch

1.120

28.4

.020

.508

6,000

34

15

12 MN-MNS

Nestack

Double Notch

0.680

17.3

.017

.432

10,500

40

18

12 MNA

Nestack

Single Notch

0.750

19.1

.024

.610

6,000

36

16

12 MNT

Nestack

Triple Notch

1.250

31.8

.024

.610

4,000

44

20

12 SPC

Push

Single Notch

1.120

28.4

.024

.610

3,000

30

14

58/34 AMP

5/8

15.9

Nestack

Double Notch

1.120

28.4

.020

.508

6,000

57

26

58 C

Snap-On

1.250

31.8

.020

.508

4,800

44

20

58 MB

Nestack

1.000

25.4

.025

.635

5,000

49

22

58 MN

Nestack

Single Notch

0.680

17.3

.017

.432

9,450

35

16

58 MNA

Nestack

0.750

19.1

.024

.610

4,800

35

16

58 SPC

Push

Single Notch

1.120

28.4

.024

.610

5,000

54

24

34 AMP

3/4

19.0

Nestack

Double Notch

1.120

28.4

.020

.508

6,000

57

26

34 C

Snap-On

1.250

31.8

.020

.508

5,000

48

22

34 HCOF

Snap-On

2.200

55.9

.035

.889

1,500

45

20

34 HOC

Push

2.200

55.9

.035

.889

700

32

15

34 M

Nestack

Triple Notch

2.000

50.8

.042

1.067

1,000

41

19

34 MB

Nestack

Double Notch

1.000

25.0

.031

.787

3,000

42

19

34 MNK

Nestack

Single Notch

0.750

19.1

.031

.787

4,200

47

21

34 MNT

Nestack

Triple Notch

1.500

38.1

.031

.787

2,800

48

22

34 MNU

Nestack

1.500

38.1

.031

.787

2,800

48

22

34 PNSC

Push

Single Notch

1.120

28.4

.024

.610

4,000

59

27

34 SHOC

Push

1.250

31.8

.035

.889

1.200

32

15

104 DG*

1-1/4

31.8

Thread-On

Four Crimp

4.750

120.7

.034

.864

500

53

24

107 DG*

Thread-On

Double Crimp

2.937

74.6

.034

.864

700

49

22

107 DGOF*

Snap-On

2.937

74.6

.034

.864

500

35

16

114 A

1-1/4

31.8

Nestack

Double Notch

1.500

38.1

.030

.762

1,350

40

18

114 I

Snap-On

Double Notch
(Intersection Seal)

2.375

60.3

.031

.787

700

35

16

114 K

Push

Double Notch

2.000

50.8

.035

.889

800

48

22

114 M

Nestack

Double Notch

2.000

50.8

.041

1.041

750

45

20

114 OF

Snap-On

Double Notch
or Double Crimp

2.200

55.9

.035

.889

1,000

50

23

114 P

Push

Double Notch

2.200

55.9

.035

.889

700

51

23

114 PGALV

Push

2.200

55.9

.035

.889

700

51

23

114 SP

Push

1.500

38.1

.030

.762

1,000

45

20

114 TO

Thread-On

2.200

55.9

.035

.889

1,000

46

21

117 HDGTO

1-1/4

31.8

Thread-On

Double Crimp

2.937

74.6

.042

1.067

500

45

20

117 HDGOF*

Snap-On

2.937

74.6

.042

1.067

500

47

21

208 TO

2

50.8

Thread-On

Double Notch
or Double Crimp

2.937

74.6

.051

1.300

300

45

20

208 DG*

Double Crimp

2.937

74.6

.051

1.300

300

45

20

 * Seals designated as “DG” have an aluminum oxide grit glued to the inner face.  Grit seals are used in crimp-joint systems in conjunction with lubricated strapping to provide a source of friction.

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