Great Midwest Yacht
sail boat
sail boat

MASTS

Great Midwest masts
 Black or silver anodized. Includes diamond stays, butt casting, mast cap, gooseneck, spinnaker pole ring, hardware for side-exit main halyard. Does not include forestay or shrouds

Fully rigged  - includes rope-to-wire main and jib halyards, 5/32" spinnaker halyard, six spreaders with end bolts, wire-hung topping lift block
black anodized
GF100
$1395.00
silver anodized
GF101
$1395.00
Kit mast  - install your own main and jib halyards, spreaders, topping lift block
black anodized
GF105
$1125.00
silver anodized
GF106
$1125.00

Mast hardware - structural
 Spreaders, diamonds, spreader sockets. The most commonly replaced mast items

Diamonds  - full-hard stainless steeel wire, curved stainless steel tangs
set of six
GC110
$106.80
upper (pair)
GF113
$35.60
middle (pair)
GF112
$35.60
lower (pair)
GF111
$35.60
Spreaders  - 3/8" OD quarter-hard stainless tubing (off-the-shelf tubing is way too bendy)
set of six - 2pc 12 " and 4pc 9" Includes 6 end adjustment bolts
GC120-1
$109.25
set of six - 2pc 12" and 4pc 9"
GC120
$102.00
upper - 12", each
GE122
$17.00
middle or lower - 9", each
GE121
$17.00
Spreader end bolts  - 1/4-20 bolt and adjusting nut, set of six
GC125
$5.25
Spreader socket  - thin-wall stainless steel tubing. Supports spreaders and anchors shroud and diamond tangs. Lengths are different for each spreader location
set of three
GC150
$32.00
upper
GE152
$11.00
middle
GE151
$11.00
lower
GE150
$11.00
Spreader socket installation tools  - large-diameter steel ball (anvil) and steel punch to start flaring of socket
GC140
$20.50

Mast hardware - stainless

Halyard hook kit  - mounts on side of mast. Used with rope-to-wire halyards to hook ball to mast and protect exit hole in mast from wearing. Includes fasteners. Can be used on gold masts with main or jib halyards with rope-to-wire splice.
GF115
$8.20
exit plate with fasteners, mast mounted
GC103
$4.95
halyard hook with fasteners, mast mounted
GC115F
$3.25
Gooseneck assembly  - for aluminum masts. Bent straps are held to the mast with s/s rivets.
GF116
$29.50
Gooseneck assembly  - for wooden masts. Flat plate screws to mast's aft face.
GB116
$20.80
Gooseneck pin and square  - replacement fits either wood or aluminum mast. Standard pin is 1 3/4" long to allow easier unshipping of boom
RL1/2
$16.00
Forestay hound  - holds forestay to mast. Includes fasteners
GB115F
$18.55
Spinnaker pole eye with fasteners 
RF602F
$28.75

Castings

Deck plate, flat  - top and bottom faces are parallel. Internal opening 2 x 3 1/8", includes fasteners
GE101F
$18.30
Deck plate, tapered  -1/8" front-to-back milled taper to produce mast pre-bend under load, includes fsateners
GE102F
$24.70
Butt casting  - cast aluminum, for masts without winches. Includes #10 bolt and nut to secure to mast
GB101FA
$22.50

Halyards

Halyards - rope-to-wire  - 3/32" wire spliced to 3/16" line
Main halyard, GMW standard  - exits side of mast and clips to fixed hook on side of mast. Two swaged balls near splice
GE140
$83.50
Jib halyard, cleats on fwd grating   - secures with a cam cleat located on forward grating cap aft of mast
GX158
$75.25
Jib halyard, cleats on trunk   - clips to sliding hook on side of centerboard trunk. One swaged ball near splice. Can be used on any mast
GE158
$76.25
Main halyard, gold mast  - exits side of mast and clips to fixed hook on mast above gooseneck. Two swaged balls near splice. Requires drilling of mast
GX140
$81.25
Other halyards 
Spinnaker halyard  - 5/32" prestretch
GB140
$24.50
Main halyard (older masts)  - 1/16" wire. For gold-anodized or wood masts with winches
GE148
$45.00

Miscellaneous mast parts

Sheave boxes  - cast zinc with nylon sheaves
single sheave. For main halyard
HA5
$16.75
double sheave. For jib & spinnaker halyards
HA7
$24.75
Topping lift hangar assembly  - 3/32" wire supports Harken block from middle spreader
GF123
$29.20
Mast cap  - flat aluminum plate,3 legs attach to mast with pop rivets
standard mast
GF122
$12.00
gold mast
GF122X
$15.00