Spars, Rigging, and Hardware for Sailboats

Rig-Rite, Inc.
63 Centerville Road, Warwick, RI 02886 USA
Phone: (001) 401-739-1140 -- FAX: (001) 401-739-1149
www.RigRite.com         Ordering/Questions

MetalMast 8348 Mast Section


MetalMast MM-8348 Mast              MM-8348        In Stock
Measurements: (OD) 8.30" x 4.81"
Wall Thickness: .140"
Weight/ft.: 3.70 lbs.
Moments of inertia: Ixx = 18.60", Iyy = 8.44"
Circumference: 20 7/8"
Sail slides: 15/16" flat slides (A008M)
Standard lengths: 48'  In Stock
Internal Electrical Track: (1) for 1/2" round slugs (A018, A118)
Common Mast usage: Allied 36; Morris 36; Pearson 365, 365K Main, 39-1?; Southern Cross 31*, 31K*;


MM 8348 Mast Section

MM 8348 Mast Section - Raw: MM-X8348R-___:
MetalMast MM 8348 Section Mast Tube is stocked in a variety of lengths (listed above) fully anodized or raw (mill finish), it can also be cut to shorter lengths. To order, specify length.
Sections can also be milled for the sailgate or other components, painted finishes and other lengths are available on special order, Please specify. If you require a complete Mast Assembly, you can select from components below and contact us with specifications.
 


MM 8348 Standard Mast Hardware
Listed below are parts specific to the MetalMast MM 8348 Mast Section. For more generic parts, see categories listed under Spar Parts. There are many parts for specific configurations that are not listed here. If you require MetalMast MM 8348 Mast Components not listed here please contact us with details.
 

Masthead Assembly w/ Offset Spinnaker Crane: MM 8348M-H2-CPA:
Aluminum Masthead Assembly for MM 8348 Mast Section fits tube end and incorporates (4) 2 1/2" OD aluminum sheaves, PP-S10A9-B6, for internal or external wire or rope halyards, and (2) SS Toggles with 5/8" Pins for Headstay and Backstay attachment. Includes 5/16" Clevis Pins for attachment of topping lift and Triatic Stay, and a (Port) Offset Spinnaker Crane pre-drilled for optional Spinnaker Bail, SP-083, (order separately). Masthead Assembly is 13 1/2" long (excluding Spinnaker Crane) x (maximum) 5 1/16" wide, and attaches to the mast with (4) 1/4" screws. As used on Pearson 365 and 365K Main.   PP-22024

 

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Spreaders
The MetalMast MM 8348 Mast Section is normally used with

Spreader Bases: Cast Alu. P&S for SP-450 (P-365K Main)

Tangs: SS DL Set (assym set, Aft Pin is lower) w/ (2) 1/2" Pins, fastens w/ 3/4" bolt and (7) 1/4" RH .
SS FU w/ 1/2" Pin.

 SP-091 Round, and RR SP375 Airfoil Spreaders, common Spreader Bases are listed below. For Spreader details, or to order replacement Spreaders, See Rig-Rite Spreader Sections.

 

Cast Spreader Base for SP-450 Airfoil Spreader - Port: MM 8348M-SBC-P:
Cast Spreader Base for SP-450 Airfoil Spreader - Starboard: MM 8348M-SBC-S:
Original Cast aluminum Spreader Base for MM 8348 Mast Section fits flush with the mast surface and attaches to the mast with (6) 1/4" RH screws. For use with 4 1/2" Airfoil Spreaders, SP-450. Unit is 6 1/8" wide x 3 5/16" high, Spreader fits over base and is normally attached with a 1/2" clevis Pin, because of variations Clevis Pin hole is not drilled. Cast in 356 Aluminum with clear anodized finish. As used on Pearson 365 and 365K Main, and others.

 

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SS Spreader Bracket w/ (2) 1/2" Pin Tangs: MM 8348M-SBT1.5-28:
SS Spreader Bracket Assembly for MM 8348 Mast is used with Spreaders. Unit is 3 3/8" high x 3 3/8" wide with a 5-degree vertical lift and attaches to mast with (7) 1/4" RH screws.

Bracket features a 5/8" vertical clevis Pin for attachment of Spreader, Spreader is normally supplied with a contoured inboard end with a welded bushing having a 5/8" ID. As used on Pearson .

 


Hinged Mainsail Gate Assembly: MM MG-H1:
Hinged Mainsail Gate assembly fits a variety of older MetalMast Sections. Gate is (maximum) 1 3/4" high x 2 1/4" wide. Base is 1 3/4" wide x 11/16" high and projects (maximum) 1/2" from Mast surface. Base attaches to Mast with (2) #6 FH screws on 5/16" vertical centers. Extruded Aluminum Gate is easily distinguished from others of its type by the attachment holes being vertical and the fact of its being Extruded. Used on a variety of Spars built in the 1960's through the 1980's.

 

Hinged Mainsail Gate Assembly - Pearson: MM MG-HT1:
Special Cast Hinged Mainsail Gate assembly used by Pearson Yachts. Gate is (maximum) 1 3/4" high x 2 7/8" wide. Base is 2 1/8" wide x 1/2" high and projects (maximum) 1/2" from Mast surface. Base attaches to Mast with (2) #10 (3/16") RH screws on 1/2" horizontal centers. Cast Aluminum Gate is secured with a 3/16" fastpin. Factory original, finished in Awlgrip Light Gray. As used on Pearson 365 and 365K Main. PY M16-T1

 

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3/4" Sail Slide Stop: K-10424:
SS Spring Pin Sail Slide Stop fits all mast sections with track for 3/4" internal flat slides. Superior design allows Slide Stop to remain captive in mast track. Gate cutout (1 3/4" high) is made just 1" above SS Gooseneck bracket. Spring pin fits in 1/4" hole drilled at top of cutout, unit slides down beneath Gooseneck Bracket when Spring pin is pulled. This design allows sail slides to come as close as possible to the gooseneck while remaining in track, and eliminates problems associated with slides snagging while going past a normal sail gate. Unit is 2 1/2" long x 3/4" wide with a 1/4" spring pin.  74-66 6106 

 

K-10424

 

 

Gooseneck Bracket: MM 8348M-GB82:
SS Gooseneck Bracket for MM 8348 Mast Section has 1/2" vertical Pin hole, for use with Gooseneck Toggle up to 2" high. Base is 5" vertical x approximately 3 5/8" wide, and attaches to the mast with (8) 1/4" RH fasteners. Originally made by Schaefer for Pearson. Can also be used as Vang Bracket with addition of Vang Toggle. As used on Pearson 365, and others.   w/b

 

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Vertical Gooseneck Pin: RR 8349M-GB1P:
SS Gooseneck Vertical Pin for use with Gooseneck Bracket, RR-8349M-GB1. SS Clevis Pin is 1/2" diameter x 3" grip length. 

 

Gooseneck Toggle Assembly w/ Tack & Reef Hooks: RR 8349M-GTA:
Combination Toggle/Tack/Reef Hook assembly features SS Tack/Reef Hook assembly bolted to cast Aluminum Toggle (RR 45-148M-W) and includes 1/2" Tack fastpin, K-10718. Toggle takes 1/2" vertical and horizontal pins. White painted Toggle is 2 5/16" high x 1 3/8" wide (15/16" wide @ Horizontal pin hole) x 3 7/8" (maximum) long, pin holes are on 2 1/2" centers. Toggle fits a variety of Mast Brackets designed for a 2 5/16" Toggle with a 1/2" vertical pin. As used on Sabre 42.  RR 45-148MRAW  

 

 
Gooseneck Toggle w/ Recess - 2 5/16" High: RR 45C-148M-W:
Cast Aluminum Gooseneck Toggle is 2 5/16" high and accommodates 1/2" vertical and horizontal pins. White painted Toggle is 2 5/16" high x 1 3/8" wide (15/16" wide @ Horizontal pin hole) x 3 7/8" (maximum) long, pin holes are on 2 1/2" centers. Toggle features 2nd 1/2" vertical hole (1 1/4" aft) with milled Recess for non-pivoting attachment of Tack/Reef Hook assembly.

 

Large SS Reef Hook/Tack Assembly for 1/2" Vertical Bolt: PP 54-22S:
Heavy-duty Stainless Steel Reef Hook/Tack Assembly mounts under head of 1/2" Vertical Bolt. Dual Reef Hook Assembly is 3 1/4" wide (at top), 1 3/8" wide (at bottom), 3 1/4" high, and has 1" clearance for Tack. Assembly is formed from 1" x 3/16" SS Strap and includes 1/2" SS Tack Fastpin, K-10718.

 

PP 54-22S

Vang Bracket for Rigid Vang – Special:
A variety of semi-custom Brackets, or Bracket/Toggle combinations are available to fit rigid (or solid) vangs produced by a number of manufacturers. Please specify vang manufacturer, model and size.

 

Electrical Access Plate: RR 72-99:
Electrical Access Plate is designed to allow access to internal electrical plugs above the mast step, without having to unstep the mast. Saves much in frustration and money by allowing you to check mast wiring connections with the mast up. SS Plate is 4 1/2" x 2" and is designed to cover a 3" x 1 1/4" vertical slot in the side of the mast, just above the top of the mast step. Plate is slightly curved to fit a variety of mast sections and attaches with (4) 1/4-20 RH machine screws (included).

 

RR 72-99
Mast Step: MM 8348M-MS2C:
Mast Step for MM 8348 Mast Section fastens to keel or deck and is undrilled to adapt to any mounting hole configuration. Cast Aluminum Mast Step measures 9 3/16" long x 5 13/16" wide with Light Gray Awlgrip finish.   RR

 

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Deck Collar - Pearson Special: MM 8348M-DC-P1:
Cast Aluminum Deck Collar for MM 8348 Mast Section. 12-02181 Anb

 

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Mast Boot: MM 8348M-BP:
Mast Boot to fit Metal Mast 8348 Mast Section (8.30" x 4.81") and special Pearson Cast Deck Collar. Hard molded white PVC Mast Boot is 2 1/4" high x 10 1/8" long x 6 3/8" wide. As used on Pearson 365, and 39-1.   PP-22396

 

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Keel-mount Mast Step: MM 8348M-S:
Mast Step for MM 8348 Mast Section fastens to keel or deck.

 

 
Electrical Wire Slide: :
Electrical Wire Slides - 10 Pack: :
Nylon slides fits MetalMast MM 8348 and other Mast Sections with 1/2"

wire slide tracks. Slides are attached to wiring harness at 2-3 foot intervals with tie wraps. Prevents wires from slapping, and from fouling internal halyards.

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