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Spars, Rigging, and Hardware for SailboatsRig-Rite, Inc. |
T-Ball Backing Plate Tangs for Slots |
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Spars, Rigging, and Hardware for SailboatsRig-Rite, Inc. |
T-Ball Backing Plate Tangs for Slots |
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| Internally mounted
Backing Plate Tangs for use with T-Ball Shroud fittings. T-Balls must be
turned 90 degrees to be removed from Backing Plates. Plates are designed to fit through
the mounting slot and are then fastened from the outside. As measurements vary widely, it
is recommended that T-Balls be replaced only with the same type as original.
In new masts Gibb T-Ball Backing Plates are recommended for their heavier
construction and the greater worldwide availability of Gibb T-Balls in Swage
and Mechanical versions. See T-Ball Swage Fittings
and T-Ball Eye Fittings. See also T-Ball Backing Plate Tangs for Round Holes which mount in Round holes. (Note: The 1 OS Backing Plate that mounts in a Slot is listed on the Round Hole page with all the other OS Backing Plates.) See also, Tangs Main Page and Rigging Main Page. |
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| Navtec / Gibb 740 T-Ball Backing Plate Tangs | |
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Stainless Steel Gibb T-Ball Backing Plates for use with original Gibb/ Navtec
T-Ball swage and Norseman mechanical fittings.
Rubber plugs, Gib 742, are available to keep T-Balls from moving when not under load.
See Rubber Retaining Plugs, below. Please Note: Gibb also makes 'Rounded' T-Ball Swages and fittings which require different Backing Plate Tangs. Used for Larger shrouds (7/32", 6mm and up), these Tangs mount in Round holes rather than slots. See: Gibb 'Rounded' T-Ball Backing Plate Tangs. |
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T-Ball Backing Plate for 3/32", 1/8" & 2-3mm wire: Gib 740-3:
SS T-Ball Backing Plate Tang for 3/32" & 1/8" (or 2mm, 2.5mm & 3mm) wire using Gibb T-Ball Swage 741-3, 741-4, or the 743-3 T-Ring. Mounts internally in mast cutout 5/8" (16mm) high x 3/8" (10mm) wide using (2) 3/16" (5mm) rivets on 1 3/8" (34mm) hole centers. Plate is 2" long x 9/16" wide, and is contoured for use with most Mast Sections. Slot in Plate is 1/2" long x 9/32" wide (13x7mm). Use with Rubber Retaining Plug: Gib 742-3: |
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Gib 740-3 T-Ball Backing Plate, Threaded w/ Screws: Gib 740-3MS:
As Gib 740-3, above, but unit has tapped holes for installation with 1/4" screws (included). For use where riveting is not practical. For Gibb T-Balls for 3/32", 1/8", 2mm, 2.5mm & 3mm wire. Use with Rubber Retaining Plug: Gib 742-3: |
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T-Ball Backing Plate for 5/32", 4mm wire: Gib 740-5:
SS T-Ball Backing Plate Tang for 5/32" (4mm) wire using Gibb T-Ball Swage 741-5, 741-6X, or the 743-5 T-Ring. Mounts internally in mast cutout 1 1/4" high x 9/16" wide (32 x 15mm) using (4) 3/16" (5mm) rivets. Plate is 3 7/16" long x 1 1/16" wide, and is contoured for use with most Mast Sections. Mounting holes are 1 15/16" (49mm), and 2 7/8" (73mm) apart. Slot in Plate is 1 1/16" long x 3/8" wide (27x10mm). NOTE: Prior to (approximately) 1988, this item was sometimes used for 3/16" & 5mm wire. Use with Rubber Retaining Plug: Gib 742-5: |
Gib 740-5 |
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Gib 740-5 T-Ball Backing Plate, Threaded w/ Screws: Gib 740-5MS:
As Gib 740-5, above, but unit has tapped holes for installation with 1/4" screws (included). For use where riveting is not practical. For Gibb T-Balls for 5/32" & 4mm wire. Use with Rubber Retaining Plug: Gib 742-5: |
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T-Ball Backing Plate for 3/16", 5mm wire: Gib 740-6:
SS T-Ball Backing Plate Tang for 3/16" (or 5mm) wire using Gibb T-Ball Swage 741-6, or the 743-6 T-Ring. Mounts internally in mast cutout 1 1/8" (29mm) high x 5/8" (16mm) wide using (2) 1/4" (6mm) rivets on 2" (50mm) hole centers. Plate is 2 5/8" long x 1" wide, and is contoured for use with most Mast Sections. Slot in Plate is 15/16" long x 1/2" wide (24x12mm). Use with Rubber Retaining Plug: Gib 742-6: |
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Gib 740-6 T-Ball Backing Plate, Threaded w/ Screws: Gib 740-6MS:
As Gib 740-6, above, but unit has tapped holes for installation with 5/16" screws (included). For use where riveting is not practical. For Gibb T-Balls for 3/16" & 5mm wire. Use with Rubber Retaining Plug: Gib 742-6: |
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T-Ball Backing Plate for 7/32", 1/4", 9/32", 6mm, 7mm wire: Gib 740-7:
SS T-Ball Backing Plate Tang for 7/32", 1/4", & 9/32" (or 6mm & 7mm) wire using Gibb T-Ball Swage 741-7, 741-8, 741-9, or the 743-7 T-Ring. Mounts internally in mast cutout 1 5/8" (70mm) high x 7/8" (22mm) wide using (7) 1/4" (6mm) rivets. Plate is 7 7/8" long x 1 1/2" wide, and is contoured for use with most Mast Sections. Mounting holes are 2 13/16" (71mm), and 4 1/16" (103mm) apart. Slot in Plate is 1 5/16" long x 5/8" wide (33x16mm). Use with Rubber Retaining Plug: Gib 742-7: |
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Gib 740-7 T-Ball Backing Plate, Threaded w/ Screws: Gib 740-7MS:
As Gib 740-7, above, but unit has tapped holes for installation with 5/16" screws (included). For use where riveting is not practical. For Gibb T-Balls for 7/32", 1/4", 9/32", 6mm & 7mm wire. Use with Rubber Retaining Plug: Gib 742-7: |
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T-Ball Backing Plate for 5/16", 3/8" & 8mm, 10mm wire: Gib 740-10:
Heavy Cast SS T-Ball Backing Plate Tang for 5/16" & 3/8" (or 8mm & 10mm) wire using Gibb T-Ball Swage 741-10, & 741-12. Mounts internally in mast cutout 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 5/8" long x 3/4" wide (41x19mm). Use with Rubber Retaining Plug: Gib 742-10: |
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Gib 740-10 T-Ball Backing Plate, Threaded w/ Screws: Gib 740-10MS:
As Gib 740-10, above, but unit has tapped holes for installation with 5/16" screws (included). For use where riveting is not practical. For Gibb T-Balls for 5/16", 3/8", 8mm & 10mm wire. Use with Rubber Retaining Plug: Gib 742-10: |
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| Rubber Retaining Plugs for Gibb 740 T-Balls | |
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T-Ball Rubber Retaining Plugs for use with Gibb T-Ball Shroud fittings.
Rubber plugs keep T-Balls from moving and disengaging when not under load.
Dimensions listed are for the portion of the Plug that is visible when they are installed.
For replacement Retaining Plugs, measure existing Plug or slot in Backing Plate
to determine which size is required.
See: Gibb T-Ball Backing Plate Tangs, above.
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Rubber Plug for T-Ball w/ 3/32", 1/8", 2, 2.5, 3mm wire: Gib 742-3:
Rubber Retaining Plug for use with Gibb T-Ball Backing Plate Tang, Gib 740-3, for 3/32" & 1/8" wire. Rubber Plug (visible when installed) is 1/2" (13mm) wide x 3/8" (10mm) high.
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Rubber Plug for T-Ball w/ 5/32" & 4mm wire: Gib 742-5:
Rubber Retaining Plug for use with Gibb T-Ball Backing Plate Tang, Gib 740-5, for 5/32" wire. Rubber Plug (visible when installed) is 11/16" (18mm) wide x 3/4" (19mm) high.
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Rubber Plug for T-Ball w/ 3/16" & 5mm wire: Gib 742-6:
Rubber Retaining Plug for use with Gibb T-Ball Backing Plate Tang, Gib 740-6, for 3/16" wire. Rubber Plug (visible when installed) is 11/16" (18mm) wide x 5/8" (16mm) high.
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Rubber Plug for T-Ball w/ 7/32", 1/4", 9/32", 6 & 7mm wire: Gib 742-7:
Rubber Retaining Plug for use with Gibb T-Ball Backing Plate Tang, Gib 740-7, for 7/32", 1/4", and 9/32" wire. Rubber Plug (visible when installed) is 15/16" (24mm) wide x 1" (25mm) high.
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Rubber Plug for T-Ball w/ 5/16", 3/8", 8mm, 10mm wire: Gib 742-10:
Rubber Retaining Plug for use with Gibb T-Ball Backing Plate Tang, Gib 740-10, for 5/16" and 3/8" wire. Rubber Plug (visible when installed) is 15/16" (24mm) wide x 1" (25mm) high. Identical to Gib 742-7 (above), but with hard plastic insert in inboard end to increase width.
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| ACMO T-Ball Backing Plates | |
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ACMO T-Ball Backing Plates are easily discernable from others, in that they allow for fitting with a
bolt through the upper hole. Most units use two (2) different sized fasteners in each fitting,
These fittings are commonly found on Masts built in France.
Compatible with ACMO and some other T-Ball fittings, as specified. |
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T-Ball Backing Plate Tang for 4mm / 5/32" wire: NGA-38-4M:
SS T-Ball Backing Plate Tang for 4mm wire using ACMO and other T-Ball fittings. Mounts internally in mast using (1) 3/16" (5mm) rivet and (2) 6mm (1/4") fasteners on 68mm (2 5/16") hole centers. Plate is 77mm long x 24mm wide (3" x 1"), and is contoured for use with most Mast Sections. Requires Mast cutout 24mm high x 14mm wide (1" x 9/16"). Slot in Plate is 18x8mm.
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T-Ball Backing Plate Tang for 5mm / 3/16" wire: NGA-38-5M:
SS T-Ball Backing Plate Tang for 5mm wire using ACMO and other T-Ball fittings. Mounts internally in mast using (1) 3/16" (5mm) rivet and (2) 6mm (1/4") fasteners on 68mm (2 5/16") hole centers. Plate is 77mm long x 24mm wide (3" x 1"), and is contoured for use with most Mast Sections. Requires Mast cutout 28mm high x 16mm wide (1 1/8" x 5/8"). Slot in Plate is 23x10.5mm.
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T-Ball Backing Plate Tang for 6mm / 1/4" wire: NGA-38-6M:
SS T-Ball Backing Plate Tang for 6mm wire using ACMO and other T-Ball fittings. Mounts internally in mast using (1) 3/16" (5mm) rivet and (2) 6mm (1/4") fasteners on 68mm (2 5/16") hole centers. Plate is 77mm long x 24mm wide (3" x 1"), and is contoured for use with most Mast Sections. Requires Mast cutout 32mm high x 17mm wide (1 1/4" x 11/16"). Slot in Plate is 26x12mm.
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T-Ball Backing Plate Tang for 7mm / 9/32" wire: NGA-38-7M:
SS T-Ball Backing Plate Tang for 7mm wire using ACMO and other T-Ball fittings. Mounts internally in mast using (1) 10mm bolt and (2) 1/4" rivets on 62mm (2 7/16") hole centers. Plate is 96mm long x 32mm wide (3 3/4" x 1 1/4"), and is contoured for use with most Mast Sections. Requires Mast cutout 42mm high x 21mm wide (1 5/8" x 13/16"). Slot in Plate is 34x14mm. H9
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T-Ball Backing Plate Tang for 8mm / 5/16" wire: NGA-38-8M: SS T-Ball Backing Plate Tang for 8mm wire using ACMO and other T-Ball fittings. Mounts internally in mast using (3) 8mm screws (included), unit also features hole for an optional 8mm bolt. Plate is 130mm long x 45mm wide (5 1/8" x 1 3/4"), and is contoured for use with most Mast Sections. Requires Mast cutout 50mm high x 26mm wide (2" x 1"). Slot in Plate is 37x17.7mm. O10
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| Dermac/Z-Spar T-Ball Backing Plates | |
| These lightweight T-Ball Backing Plates are the
type most commonly found on Z-Spar Masts. Compatible with Dermac and other T-Ball
fittings, these Backing Plates are not compatible with most sizes of Gibb T-Balls.
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T-Ball Backing Plate Tang for 1/8" & 3mm wire: Z-3265:
SS T-Ball Backing Plate Tang for 1/8" or 3mm wire using Dermac and other T-Ball fittings. Mounts internally in mast cutout 3/4" high x 5/16" wide (22x8mm), using (2) 3/16" (5mm) rivets on 1 1/2" (38mm) hole centers. Plate is 1 7/8" long x 3/4" wide (48x18mm), and is contoured for use with most Mast Sections. Slot in Plate is 11/16" long x 5/16" wide (18x8mm). Der BP-3
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T-Ball Backing Plate Tang for 1/8", 5/32", 3mm & 4mm wire: Z-3266:
SS T-Ball Backing Plate Tang for 1/8" and 5/32" (or 3mm & 4mm) wire using Dermac and other T-Ball fittings. Mounts internally in mast cutout 1" high x 9/16" wide (25x17mm), using (2) 3/16" (5mm) rivets on 2 3/16" (55mm) hole centers. Plate is 3" long x 7/8" wide (75x22mm), and is contoured for use with most Mast Sections. Slot in Plate is 3/4" long x 11/32" wide (20x9mm). Der BP-4
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T-Ball Backing Plate Tang for 3/16" & 5mm wire: Z-3267:
SS T-Ball Backing Plate Tang for 3/16" (or 5mm) wire using Dermac and other T-Ball fittings. Mounts internally in mast cutout 1" high x 5/8" wide (25x16mm), using (2) 3/16" (5mm) rivets on 2 3/16" (55mm) hole centers. Plate is 3" long x 7/8" wide (75x22mm), and is contoured for use with most Mast Sections. Slot in Plate is 3/4" long x 27/64" wide (20x11mm). Der BP-5
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T-Ball Backing Plate Tang for 7/32", 1/4", 9/32", 6, 7mm wire: Z-3268:
SS T-Ball Backing Plate Tang for 7/32", 1/4", & 9/32" (or 6mm & 7mm) wire using Dermac and other T-Ball fittings. Mounts internally in mast cutout 1 3/16" high x 3/4" wide (30x19mm), using (3) 3/16" (5mm) rivets. Plate is 4 5/16" long x 1 3/16" wide (110x30mm), and is contoured for use with most Mast Sections. Slot in Plate is 1" long x 9/16" wide (25x14mm). Der BP-6
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