MetalMast 7845 Mast Section


MM 7845 Mast Section MM 7845 Mast Section - Clear Anodized: RR-X8349CA-___: MM 7845 Mast Section - Raw: RR-X8349R-___: MetalMast MM 7845 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 7845 Standard Mast Hardware Listed below are parts specific to the MetalMast MM 7845 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 7845 Mast Components not listed here please contact us with details.
Stock components: Heads: Alum. w/ cast base P-30 (PP-22000), Alu MM std. ; SS Offset Hinged Sailgate Cast PY M16-T1 Gooseneck Bracket: SS as RR #8 for Max. 2 1/2" toggle. Step - Cast Domed step (2 versions)

*Masthead Assembly for Masthead Rig: MM 7845M-H1A:* Aluminum Masthead Assembly for MM 7845 Mast Section fits tube end and incorporates (4) 2" OD aluminum sheaves, K-10861-B6, for internal or external wire or rope halyards, and (2) SS Toggles with 1/2" Pins for Headstay and Backstay attachment. Includes 5/16" Clevis Pin for attachment of topping lift, and is pre-drilled for optional Spinnaker Bail, *SP-083, (order separately). Masthead Assembly is 12 1/4" long x (maximum) 4 3/4" wide, and attaches to the mast with (4) 1/4" screws. As used on some Pearson 26's*, and others. PP-22022MM
*Inset Masthead Assembly for Masthead Rig: RR 8349M-H1:* Bolt-in aluminum Masthead Assembly for MM 7845 Mast Section incorporates (4) 2 3/4" OD aluminum sheaves, PP-S11A9-8RR, for internal or external wire or rope halyards, and (2) 5/8" Pins for Headstay and Backstay attachment. Includes 1/4" Clevis Pin for topping lift attachment and lugs for Dual Offset Spinnaker Bails using standard 5/16" shackles. As used on . (Wic , order separately). Masthead fits in 4" deep x 1 3/4" wide slot cut into fore and aft sides of the mast tube. Masthead Assembly is 10 1/2" long x (maximum) 5 1/4" wide, and attaches to the mast with (1) 1/2" bolt.
*Mizzen Masthead Assembly: MM 7845M-HM2:* Aluminum Masthead Assembly for MM 7845 Mast Section incorporates (4) 2 3/4" OD aluminum sheaves, PP-S11A9-8RR, for internal or external wire or rope halyards, and (2) 5/8" Pins for Headstay and Backstay attachment. Includes 1/4" Clevis Pin for topping lift attachment and lugs for Dual Offset Spinnaker Bails using standard 5/16" shackles. Masthead Assembly is 10 1/2" long x (maximum) 4 1/8" wide, and attaches to the mast with 1/4" screws. As used on Pearson .
Masthead Assembly for Mizzen Mast: K-1800MZ: Heavy-duty Masthead specially designed for Mizzen Mast applications using the 3550 mast section. Unit incorporates extruded aluminum channel with (2) aluminum sheaves, *K-198-7A*, in cast housing with dual SS strap. SS strap has 3/8" hole (upper) for Triatic Stay turnbuckle and 1/2" hole for attachment of Mizzen Staysail halyard block. Two sheaves allow for internal or external Mizzen halyard. Includes 3/8" pin for backstay attachment, and 1/4" topping lift pin. Masthead fits in 2 7/16" x 3/4" wide slot cut into fore and aft sides of the mast tube. Masthead is 8 1/2" long (less strap) x 3 1/2" wide, and is attached to the mast with (6) 1/4" screws, and a 3/8" bolt. ###

Spreaders The MetalMast MM 7845 Mast Section is normally used with 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.
Spreader Base for 1 5/16" Round Spreader: SP-091B-P64: Rectangular Spreader Base for 1 5/16" OD Spreader. Cast Aluminum Spreader Base attaches to Mast with (2) 1/2" bolts on 4" centers, l ower bolt is commonly used to attach lower shroud Tangs. Spreader is held in socket by 1/8" cotter Pin (included). Unit is 6" high x 3" wide, base is slightly contoured for use with a variety of Mast Sections. As used on Pearson , and others.
*SS Spreader Bracket w/ 5/8" Pin: MM 7845M-SB-PY10:*
SS Spreader Bracket Assembly for MM 7845 Mast is used with Rig-Rite SP375 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 .
Spreader Base for Airfoil Spreader: MM 7845SB-P35: SS Spreader Base for 1 5/16" OD Spreader. Cast Aluminum Spreader Base attaches to Mast with (2) 1/2" bolts on 4" centers, lower bolt is commonly used to attach lower shroud Tangs. Spreader is held in socket by 1/8" cotter Pin (included). Unit is 6" high x 3" wide, base is slightly contoured for use with a variety of Mast Sections. As used on Pearson , and others.

*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-HP1:* 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 .		PY M16-T1??
*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
Gooseneck Bracket: MM 7845M-GB1: SS Gooseneck Bracket for MM 7845 Mast Section has 1/2" vertical Pin hole, for use with standard Gooseneck Toggle up to 2 1/2" high. Base is 5" vertical x approximately 4 3/4" wide, and attaches to the mast with (10) 1/4" RH fasteners. Commonly used with Combination Toggle/Tack/Reef Hook Assembly, RR-8349M-GTA, below. Can also be used as Vang Bracket with addition of Vang Toggle.
	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 Ass'y 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.

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).
SS Mast Step: MM 7845M-MS-D1: Mast Step for MM 7845 Mast Section fastens to mast with (4) 3/8" bolts on ____. SS Mast Step measures " long x " wide. Domed step (2 versions)
SS Mast Step: MM 7845-2M-MS-D2: Mast Step for MM 7845-2 (w/ 2 ) Mast Section fastens to mast with (4) 3/8" bolts on ____. SS Mast Step measures " long x " wide. Domed step (2 versions)
Mast Boot: MM 7845M-MBP: Mast Boot for MM 7845 Mast Section and special Pearson Deck Collar. As used on . PP-22
Keel-mount Mast Step: MM 7845M-S1: Mast Step for MM 7845 Mast Section fastens to keel with (2) 3/8" bolts on " centers. Cast Aluminum Mast Step measures " long x " wide and is marked. As used on . PP-2185X,A-10264
Electrical Wire Slide: K-10908: Electrical Wire Slides - 10 Pack: K-10908P: Nylon slides fits MetalMast MM 7845-2 and other Mast Sections with US standard 1/4" 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.

Spars, Rigging, and Hardware for Sailboats