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Spars, Rigging, and Hardware for SailboatsRig-Rite, Inc. |
T-Ball Backing Plates for Round Holes |
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Spars, Rigging, and Hardware for SailboatsRig-Rite, Inc. |
T-Ball Backing Plates for Round Holes |
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Round Hole Internally mounted Backing Plate Tangs are of 2 primary types, those for
Navtec/Gibb 841 'Rounded' T-Ball Shroud Terminals and those for a variety of European
T-Balls from OS/BSI and others. Both types are easy to install, mounting through a
Round Hole in the Mast, and riveted from the outside. Easy to distinguish, those for
Navtec/Gibb 841 'Rounded' T-Ball Shroud Terminals are curved where they protrude through
the Mast, while those for 'standard' T-Balls are flat.
(Note: The 1 OS Backing Plate that mounts in a Slot is listed below with all the other OS Backing Plates.)
See also: T-Ball Backing Plate Tangs for Slots. See also, Tangs Main Page and Rigging Main Page. Gibb 'Rounded' T-Ball Backing Plates for 'Rounded' T-Ball Swage Fittings OS/BSI T-Ball Backing Plates for OS T-Ball Swage Fittings and OS Rod T-Ball Fittings |
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| Gibb 840 'Rounded' T-Ball Backing Plates | |
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Stainless Steel Gibb 'Rounded' T-Ball Backing Plates for use only with Navtec/Gibb 841
'Rounded' T-Ball Swage Fittings,
Norseman, and other 'Rounded' T-Ball (Lollipop) Shroud fittings. Used for Larger shrouds (7/32", 6mm and up),
these fittings are stronger and provide greater articulation than the standard Gibb T-Ball.
Rubber Retaining Plugs Gib 842, below,
are available to keep 'Rounded' T-Balls from moving when not under load. See also: (for Standard T-Balls) Gib 740 T-Ball Backing Plate Tangs. |
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840 Backing Plate for 7/32", 1/4" & 6mm wire: Gib 840-M06:
SS T-Ball Backing Plate Tang for 7/32" and 1/4" (or 6mm) wire using Gibb 'Rounded' T-Ball swage fittings, Gib 841. Mounting requires a 1 3/16" hole in the Mast, unit is attached using (3) 3/16" (5mm) rivets. Formed Plate is 3 3/4" long x 1 3/16" wide, and is contoured for use with most Mast Sections. Use with Rubber Retaining Plug: Gib 842-M06:
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840 Backing Plate for 9/32", 5/16", 7mm, 8mm wire: Gib 840-M07:
SS T-Ball Backing Plate Tang for 9/32" and 5/16" (or 7mm & 8mm) wire using Gibb 'Rounded' T-Ball fittings, Gib 841. Mounting requires a 1 1/2" hole in the Mast, unit is attached using (3) 1/4" (6mm) rivets. Formed Plate is 4 3/4" long x 1 1/2" wide, and is contoured for use with most Mast Sections. Use with Rubber Retaining Plug: Gib 842-M08:
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840 Backing Plate for 5/16" & 8mm wire: Gib 840-M08:
Heavy Cast SS T-Ball Backing Plate Tang for 5/16" (or 8mm) wire using Gibb 'Rounded' T-Ball fittings, Gib 841. Mounting requires a 1 5/8" hole in the Mast, unit is attached using (3) 1/4" (6mm) rivets. Plate is 4 3/4" long x 1 1/2" wide, and is contoured for use with most Mast Sections. Use with Rubber Retaining Plug: Gib 842-M08:
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840 Backing Plate for 3/8" & 10mm wire: Gib 840-M10:
Heavy Cast SS T-Ball Backing Plate Tang for 3/8" (or 10mm) wire using Gibb 'Rounded' T-Ball fittings, Gib 841. Mounting requires a 1 3/4" hole in the Mast, unit is attached using (4) 1/4" (6mm) rivets. Plate is 5 7/8" long x 1 3/4" wide, and is contoured for use with most Mast Sections. Use with Rubber Retaining Plug: Gib 842-M10:
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| 840 Backing Plate for 7/16", 1/2", 11mm & 12mm wire: Gib 840-M12: | |
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Heavy Cast SS T-Ball Backing Plate Tang for 7/16" & 1/2" (or 11mm & 12mm) wire using Gibb 'Rounded'
T-Ball fittings, Gib 841. Mounting requires a 2" hole in the Mast, unit is attached using (5)
1/4" (6mm) rivets. Plate is 7" long x 2" wide, and is contoured for use with most Mast Sections. Use with Rubber Retaining Plug: Gib 842-M12:
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| Rubber Retaining Plugs for Gibb 840 'Rounded' T-Balls | |
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Rubber Retaining Plugs for use with Gibb 'Rounded' T-Ball Shroud fittings. Rubber plugs keep
'Rounded' T-Balls from moving and disengaging when not under load.
For replacement Plugs, measure wire size or take number from existing Plug. |
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| Rubber Plug for 'Rounded' T-Ball, 7/32", 1/4", & 6mm wire: Gib 842-M06: | |
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Rubber Retaining Plug for use with Gibb 'Rounded' T-Ball Backing Plate, Gib 840-M06,
for 7/32", 1/4", and 6mm wire. Rubber Plug is 3/4" (19mm) long x 1/2" (12mm) wide. Plug is marked
with the number 6, which is visible when installed.
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| Rubber Plug for 'Rounded' T-Ball, 9/32", 5/16", 7mm, 8mm wire: Gib 842-M08: | |
| Rubber Retaining Plug for use with Gibb 'Rounded' T-Ball Backing Plates,
Gib 840-M07, and Gib 840-M08, for 9/32", 5/16", 7mm & 8mm wire.
Rubber Plug is 1" (25mm) long x 5/8" (16mm) wide. Plug is marked with the number 7/8,
which is visible when installed.
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| Rubber Plug for 'Rounded' T-Ball, 3/8" & 10mm wire: Gib 842-M10: | |
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Rubber Retaining Plug for use with Gibb 'Rounded' T-Ball Backing Plate, Gib 840-M10,
for 3/8" and 10mm wire. Rubber Plug is 1" (25mm) long x 3/4" (19mm) wide. Plug is marked with the
number 10, which is visible when installed.
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| Rubber Plug for 'Rounded' T-Ball, 7/16", 1/2", 11mm, 12mm wire: Gib 842-M12: | |
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Rubber Retaining Plug for use with Gibb 'Rounded' T-Ball Backing Plate,
Gib 840-M12, for 7/16", 1/2", 11mm & 12mm wire. Rubber Plug is 1 1/4" (32mm) long x 1"
(25mm) wide. Plug is marked with the number 12, which is visible when installed.
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| OS / BSI T-Ball Backing Plates | |
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Internally mounted Stainless Steel Backing Plate Tangs are easy to install, fitting through a Round
Hole and riveted from the outside.
For use with OS/BSI T-Ball wire swages and Rod fittings. See OS T-Ball Swage Fittings, and OS Rod T-Ball Fittings. |
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T-Ball Backing Plate for 3, 4mm, 1/8", 5/32" wire: OS 740-4M:
SS T-Ball Backing Plate Tang for 3 & 4mm, 1/8" & 5/32" wire using OS/BSI T-ball swage fittings. Mounts internally in 20.4mm (13/16") hole in mast using (3) 3/16" (5mm) rivets. Plate is 80mm (3 1/8") long x 20.4mm (13/16") wide, and is contoured for use with most Mast Sections. Slot in Plate is 5/8" long x 5/16" wide (16x8.5mm). Note: Some of these units are stamped "3", some are stamped "4", both are otherwise identical. OS 7000034
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T-Ball Backing Plate for 5mm, 3/16" wire: OS 740-5M:
SS T-Ball Backing Plate Tang for 5mm (3/16") wire and -4 Rod using OS/BSI T-ball swage or Rod fittings. Mounts internally in 20.4mm (13/16") hole in mast using (3) 3/16" (5mm) rivets. Slot in Plate is 3/8" wide (10mm). Units are stamped "5". OS 700005
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T-Ball Backing Plate for 6mm / 7/32", 1/4" wire: OS 740-6M:
SS T-Ball Backing Plate Tang for 6mm wire and -6/-8 Rod using OS/BSI T-ball swage or Rod fittings. Mounts internally in 30.4mm (1.2") hole in mast using (3) 1/4" (6mm) rivets. Plate is 110mm (4 5/16") long x 30.4mm (1.2") wide, and is contoured for use with most Mast Sections. Slot in Plate is 1 1/16" long x 1/2" wide (27x13mm). Units are stamped "6". OS 700006
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Old-style T-Ball Backing Plate for 7mm / 9/32" wire: OS 740-7MX:
Old-style SS T-Ball Backing Plate Tang for 7mm & 9/32" wire and -10 Rod using OS/BSI T-ball swage or Rod fittings. Mounts internally in 30.4mm (1.2") hole in mast using (3) 1/4" (6mm) rivets. Plate is 110mm (4 5/16") long x 30.4mm (1.2") wide, and is contoured for use with most Mast Sections. Slot in Plate is 1 1/8" long x 5/8" wide (28x15.5mm). Units are stamped "7". This item is No Longer Available. OS 700007X
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New-style T-Ball Backing Plate for 7mm / 9/32" wire: OS 740-7M:
New-style SS T-Ball Backing Plate Tang for 7mm / 9/32" wire and -10 Rod using OS/BSI T-ball swage or Rod fittings. Mounts internally in 40mm (1 5/8") hole in mast using (4) 1/4" (6mm) rivets. Plate is 130mm (5 1/8") long x 40mm (1 5/8") wide, and is contoured for use with most Mast Sections. Slot in Plate is 1 1/8" long x 9/16" wide (29x15mm). Units are stamped "7". OS 700007
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T-Ball Backing Plate for 8mm / 5/16" wire: OS 740-8M:
SS T-Ball Backing Plate Tang for 8mm / 5/16" wire and -12/-15 Rod using OS/BSI T-ball swage or Rod fittings. Mounts internally in 41mm (1 5/8") hole in mast using (4) 1/4" (6mm) rivets. Plate is 130mm (5 1/8") long x 41mm (1 5/8") wide, and is contoured for use with most Mast Sections. Slot in Plate is 1 1/4" long x 11/16" wide (31x17mm). Units are stamped "8". OS 700008
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Cast T-Ball Backing Plate for 10mm / 3/8" wire: OS 740-10MCX:
Cast SS T-Ball Backing Plate Tang for 10mm / 3/8" wire and -16/-17 Rod using OS T-ball swage or Rod fittings. Mounts internally in mast Slot 1 7/8" (48mm) high x 1" (25mm) wide using (5) 1/4" (6mm) rivets. Plate is 5 9/16" long x 1 5/8" wide, and is contoured for use with most Mast Sections. Slot in Plate is 1 7/16" long x 7/8" wide (36x19mm). Limited Availability. OS 701010X |
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