Deck Collars / Mast Collars

Deck Collars - Mast Collars
Deck Collars, or Mast Collars, or Mast Partners, are used on Rigs with keel-stepped Masts to provide a suitable interface where the Mast goes through the Deck. Deck Collars are usually bolted through the Deck, and are normally specific to the Mast Section they are designed for. Deck Collars will allow space for the use of some Mast Wedges to prevent contact between the Mast and its' Deck Collar. Some Deck Collars incorporate a means of attaching Turning Blocks for Halyards and other Control lines. Some Deck Collars incorporate a means of attaching various Tie Rods or Deck Tie-down Turnbuckles, attaching to the Mast or Mast Step, to prevent Deck rise due to Rig Tension. Mast Wedges provide the cushion between the Mast and its' Deck Collar. Mast Boots help prevent water leakage where the Mast goes through the Deck. They fit around the Mast and cover the Deck Collar flange and Mast Wedges. Mast Boot Tape is used in applications where no suitable Mast Boot is available. Stainless Steel Mast Boot Clamps are used to secure the Mast Boot to the Mast, and to the Deck Collar. Rig-Rite stocks a wide selection of Deck Collars originally supplied by a variety of Manufacturers, as noted below, and is able to supply any type of Custom Deck Collar, as required. Kenyon Deck Collars are listed by specific Mast Section, See Kenyon Mast Sections. Spartan Deck Collars are listed by specific Mast Section, See Spartan Mast Sections. Isomat Deck Collars are listed by specific Mast Section, See Isomat Mast Sections. Sparcraft Deck Collars are listed by specific Mast Section, See Sparcraft Mast Sections. Z-Spar Deck Collars are listed by specific Mast Section, See Z-Spar Deck Collars. Custom Deck Collars are available, See Custom Deck Collars, below. Deck Collars for Sections not listed elsewhere on-site are shown below. If you require a Deck Collar not listed here, please forward details on your Mast Section, See: Identifying your Spar Section, and a tracing of your Deck Collar (the part the Mast Boot fits over) with measurements including circumference, and full details of the part, boat model and year. If an original Collar is not available, we are able to supply any type of Custom Deck Collar, as noted below. Turning Blocks to attach to standard Deck Collar Bails are available, See: Mast Step / Deck Collar Turning Blocks.

Special Deck Collars Deck Collars for Sections not listed elsewhere on-site are shown below.


*Annapolis Spars 6641 - 8050 Deck Collar: AS 66-80M-DC:* Standard Deck Collar for Annapolis Spars 6641 (6 5/8" x 4 1/8"), 7446 (7 3/8" x 4 5/8"), and 8050 (8" x 5") Diamond-shaped Mast Sections fastens to deck with (8) 1/4" FH screws. Base size is (maximum) 12 7/8" long x 9 7/8" wide, ID size is (maximum) 8 1/2" x 5 1/2". Cast in 356 Aluminum with clear anodized finish. BC=24
*Annapolis Spars 8553 - 8853 Deck Collar: AS 85-88M-DC:* Standard Deck Collar for Annapolis Spars 8553 (8 1/2" x 5 3/8"), and 8855 (8 7/8" x 5 1/2") Diamond-shaped Mast Sections fastens to deck with (8) 1/4" FH screws. Base size is (maximum) 14 5/8" long x 11 1/4" wide, ID size is (maximum) 10 3/16" x 6 7/8". Cast in 356 Aluminum with clear anodized finish. BC=28.75

*Hall Spars 152 Deck Collar, 5" Min. ID: HS 152M-DC:* Standard Deck Collar for Hall Spars 152 Mast Section (6" x 4") fastens to deck with (7) 1/4" FH screws. Base size is (maximum) 9 1/4" long x 7 1/4" wide, ID size is (maximum) 6 7/8" x 5". Cast in 356 Aluminum with a black epoxy finish. As used on J/28, and others. PR7251
*Hall Spars 166 Deck Collar, 5" Min. ID: HS 166M-DC:* Standard Deck Collar for Hall Spars 166 Mast Section (6.50" x 4") fastens to deck with (8) 1/4" FH screws. Base size is (maximum) 10 1/4" long x 7 3/4" wide, ID size is (maximum) 7 1/2" x 5". Cast in 356 Aluminum with a black epoxy finish. As used on J/34, and others. PR8327 TP25981
*Rectangular Deck Collar, 4 3/4" Min. ID - J/34 Special: TP 10566:*
Rectangular Aluminum Deck Collar used on Kenyon 4066, Hall HS-166 and similar Mast Sections (+/- 4" wide), fastens to deck with (12) 1/4" FH screws. Base size (maximum) is 13 7/8" x 7 5/8", with flange that extends 1 1/4" below deck, and 1" above. Inside measures 10 3/4" x 4 3/4" wide. Fabricated from 5/32" Aluminum plate with white Awlgrip finish. Use with Teak Chock Set, TP 50015, on Hall Spars HS-166 mast section. As used on J/34 and others. TP10566 Fr33
	*Teak Chock Set for 4 3/4" wide Deck Collar, - J/34 Special: TP 50015:*
	Special Teak Chock Set for use with 4 3/4" wide (ID) Rectangular Deck Collar, TP 10566, and Hall HS-166 mast section. Set includes special front and back wedges for HS-166 mast section (8" long total), and Adjustable Chock Set, TP 50014S (8 pcs, allows 2 7/8" adjustment). As used on J/34 and others. TP50015
	*Teak Chock Set for 4 3/4" wide Deck Collar: TP 50014S:*
	Adjustable Teak Chock Set for 4 3/4" wide (ID) rectangular Deck Collar or Mast step box. Eight (8) piece Set of T-shaped Teak Spacers includes (2) @ 1/2" thick, (3) @ 3/8" thick, and (3) Spacers @ 1/4" thick. Set totals 2 7/8" thick. Solid Teak Spacers are 4 3/4" wide (5 3/4" at flange) x 2 3/4" high.

*Deck Collar, Hood Stoway 8851 Special - Sabre 38: Hood FM8851DC-S38:*
Special Deck Collar for Hood 8851 Stoway Mast Section, fastens to deck with (6) 1/4" FH screws. Base size is (maximum) 14" long x 11 1/4" wide x 2" high, with 1/2" holes on both sides for attachment of deck tie down rod. Dished Collar features (17) 3/4" holes for attachment of Halyard Turning Blocks, shackles, etc.. Maximum ID is 8 1/2" x 5 1/2". Cast in 356 Aluminum w/ clear anodized finish. As used on Sabre 38.

*MetalMast 5838/6342 Deck Collar, 5 5/8" Min. ID: MM 5838M-C1:*
Standard Deck Collar for MetalMast 5838 and 6342 Mast Sections fastens to deck with (8) 1/4" FH screws. Base size is (maximum) 11 3/8" x 9 3/8" x 3" high, with 5/16" thick Base and 1/4" thick Mast flange. ID size is (maximum) 7 5/8" x 5 5/8". Fabricated from 6061 Aluminum plate with clear anodized finish. OPL
*MetalMast 6844/7348 Deck Collar, 5 7/8" Min. ID: MM 6844M-C1:*
Standard Deck Collar for MetalMast 6844 and 7348 Mast Sections fastens to deck with (8) 1/4" FH screws. Base size is (maximum) 12" x 9 3/4" x 3" high, with 5/16" thick Base and 1/4" thick Mast flange. ID size is (maximum) 8" x 5 7/8". Fabricated from 6061 Aluminum plate with clear anodized finish. OPL
*MetalMast 8348 Deck Collar, 5 3/8" Min. ID: MM 8348M-DCP:* Cast Aluminum Deck Collar for MetalMast 8348 Teardrop Mast Section (8.3" x 4.81") is undrilled to adapt to any mounting hole configuration. Base size is (maximum) 11 7/8" x 8 1/4" x 1 3/4" high, ID size is (maximum) 8 7/8" x 5 3/8". As used on some Pearson 365, 39, and others. PP2181
*MetalMast 9461 Deck Collar, 7 5/8" Min. ID: MM 9461M-C1:* Standard Deck Collar for MetalMast 9461 Mast Section fastens to deck with (10) 1/4" FH screws. Base size is (maximum) 15" x 11 3/4" x 3" high, with 5/16" thick Base and 1/4" thick Mast flange. ID size is (maximum) 11 1/8" x 7 5/8". Fabricated from 6061 Aluminum plate with clear anodized finish. OP

*Schaefer 180 Deck Collar, 5 1/2" Min. ID: Sch 55-49X:* Standard Deck Collar for Schaefer Spars 180 Mast Section (7 1/8" x 4 1/2") fastens to deck with (8) 1/4" FH screws. Base size is (maximum) 10 7/8" long x 8 1/2" wide, ID size is (maximum) 8 1/8" x 5 1/2". Cast in 356 Aluminum with a black epoxy finish. Used with Schaefer Spars #180, 181, and 185 Mast Sections, and K-77509-19 Mast Wedge. XXPF
*Schaefer 200 Deck Collar, 5 1/2" Min. ID: Sch 55-48X:* Standard Deck Collar, for Schaefer Spars 200 Mast Section (7.685" x 4.86") fastens to deck with (7) 1/4" RH screws and has a 1/2" hole forward for tie rod. Base size is (maximum) 10 3/4" long x 8 1/4" wide, ID size is (maximum) 8" x 5 1/2". Cast in 356 Aluminum with a black epoxy finish. As used on some Pearson 34's, and others. PY.

Deck Collars for Round Masts Deck Collars for Round Masts are listed below.
*Deck Collar for 5" Round Mast, 5 9/16" ID: PP RM5DC:* Deck Collar for 5" Round Mast has 5 9/16" ID. Round pipe is welded in 7 1/2" square plate that is 1/4" thick, 6" OD pipe extends 3/4" below deck and 1 3/8" above deck plate. Unit fastens to deck with (4) 3/8" bolts on 6" centers, and has Black epoxy finish. As used on Pearson 23C and others. PY25037
*Deck Collar for up to 8" Round Mast, 8 1/8" ID: PP RM8DC-D:* Deck Collar for up to 8" Round Mast has 10 evenly spaced lugs w/ 3/8" holes for blocks and other attachments. Round cast Aluminum Deck Collar is 12 1/2" OD x 8 1/8" ID x (maximum) 2 1/2" high with 1/2" thick deck flange. Collar fastens to threaded Deck Collar Ring (underdeck) with (8) 3/8"-16 RH screws. Finished in White Awlgrip, unit has the letter "D" cast into it. As used on Freedom.
	*Deck Collar Ring for PP RM8DC-D Collar: RM8DCR-D:* Deck Collar Ring for use with *PP RM8DC-D* Deck Collar on the underside of the Deck. Aluminum Deck Collar Ring is 12 1/2" OD x 10 1/8" ID x 1/2" thick, and has (8) tapped holes (3/8"-16) for attachment of deck collar, and (10) 3/8" countersunk holes for attachment to underside of Deck. Finished in White Awlgrip. As used on Freedom.
*Deck Collar for up to 9" Round Mast, 9 1/8" ID: PP RM9DC-B:* Deck Collar for up to 9" Round Mast has 10 evenly spaced lugs w/ 3/8" holes for blocks and other attachments. Round cast Aluminum Deck Collar is 13 1/2" OD x 9 1/8" ID x (maximum) 2 3/4" high with 1/2" thick deck flange. Collar fastens to threaded Deck Collar Ring (underdeck) with (8) 3/8"-16 RH screws. Finished in White Awlgrip, unit has the letter "B" cast into it. As used on Freedom 30.
	*Deck Collar Ring for PP RM9DC-B Collar: RM9DCR-B:* Deck Collar Ring for use with *PP RM9DC-B* Deck Collar on the underside of the Deck. Aluminum Deck Collar Ring is 13 1/2" OD x 11" ID x 1/2" thick, and has (8) tapped holes (3/8"-16) for attachment of deck collar, and (10) 3/8" countersunk holes for attachment to underside of Deck. Finished in White Awlgrip. As used on Freedom 30. Bo 10630
	*Deck Collar Ring for PP RM11DC-C Collar: RM11DCR-C:* Deck Collar Ring for use with *PP RM11DC-C* Deck Collar on the underside of the Deck. Aluminum Deck Collar Ring is 15 3/4" OD x 13 1/4" ID x 1/2" thick, and has (8) tapped holes (3/8"-16) for attachment of deck collar, and (10) 3/8" countersunk holes for attachment to underside of Deck. Finished in White Awlgrip. As used on Freedom 36.

Custom Deck Collars Custom Deck Collars are available in any number of varieties and materials. Common arrangements are detailed below, or specify any other configuration.

*Custom Deck Collar, Aluminum: XXCDC-A-__:* Simple Custom Aluminum Deck Collar with Mast Flange. For Quotation, Specify Mast Section, maximum Deck limitations fore and aft, and other requirements. Design is similar to *MM 5838M-C1*, as pictured here.
*Custom Deck Collar, Aluminum w/ Attachment Ring: XXCDC-AR-__:*
Custom Aluminum Deck Collars with integral Ring for attachment of Turning Blocks and Halyard Shackles. For Quotation, Specify Mast Section, maximum Deck limitations fore and aft, and other requirements. Design is similar to *MM 5033M-C2*, as pictured here.
*Custom Deck Collar, SS w/ Attachment Bails: XXCDC-SB-__:* Custom Stainless Steel Deck Collars with welded Bails for attachment of Turning Blocks or Halyard Shackles are available as pictured here. For Quotation, Specify Mast Section, maximum Deck limitations fore and aft, and other requirements.

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