Spars, Rigging, and Hardware for Sailboats

Rig-Rite, Inc.
Phone: (001) 401-739-1140 -- FAX: (001) 401-739-1149
www.RigRite.com          Ordering/Questions

Z-SPAR Mast Base Turning Blocks


Many Z-Spar Mast Steps and Deck Collars, feature provisions for attachment of Blocks and Shackles using a variety of Bails, Pins, and threaded Studs with nuts. Blocks with SS straps and acetyl sheaves are available with integral threaded Studs and nuts. Studs, Pins, and Bails are available separately for use with other blocks or attachments.

 
Blocks w/ Threaded Studs for New-Style Steps & Collars
Threaded Block Studs w/ Nut
Block Pins
Step & Collar Bails
 

Blocks w/ Threaded Studs for New-Style Steps & Collars
Gray plastic Blocks with SS straps and acetyl sheaves are specially designed to attach to all New-Style Z-Spar Mast Steps and Deck Collars. Blocks incorporate an 8mm or 10mm SS stud, threaded on the end, and include special Nut. SS Nut slides into recess in side of deck casting and block screws in through hole in top. Acetyl sheave will accommodate wire or rope halyards. All Blocks allow full articulation. Threaded Block Studs are available separately (below) for use with other blocks or attachments.
 
Mast Base Turning Block w/ 45mm Sheave - 8mm Stud: Z-261:
Block with 1 3/4" (45mm) diameter sheave will accommodate lines up to 7/16" (12mm) diameter. Includes 8mm stud with nut to fit deck castings with 8mm (5/16") holes and 1/2" (13mm) wide slots for nuts.

 

Z-261
Mast Base Turning Block w/ 60mm Sheave - 8mm Stud: Z-272:
Block with 2 3/8" (60mm) diameter sheave will accommodate lines up to 1/2" (14mm) diameter. Includes 8mm stud with nut to fit deck castings with 8mm (5/16") holes and 1/2" (13mm) wide slots for nuts.

 

Mast Base Turning Block w/ 60mm Sheave - 10mm Stud: Z-275:
Block with 2 3/8" (60mm) diameter sheave will accommodate lines up to 1/2" (14mm) diameter. Includes 10mm stud with nut to fit deck castings with 10mm (3/8") holes and 11/16" (17mm) wide slots for nuts.

 

Z-275

Mast Base Turning Block w/ 80mm Sheave - 10mm Stud: Z-288:
Block with 3 1/8" (80mm) diameter sheave will accommodate lines up to 5/8" (16mm) diameter. Includes 10mm stud with nut to fit deck castings with 10mm (3/8") holes and 11/16" (17mm) wide slots for nuts. mil

 

 

Z-288

Mast Base Fiddle Block w/ 10mm Stud: Z-278:
Fiddle Block with 2 3/8" (60mm) and 1 3/8" (35mm) diameter sheaves will accommodate lines up to 1/2" (14mm) diameter. Includes 10mm stud with nut to fit deck castings with 10mm (3/8") holes and 11/16" (17mm) wide slots for nuts. Fiddle Block (with stud) is (maximum) 7" (175mm) long.

 


Swivel Blocks are available for special applications.  For use only where the lead angle must change under load. The Standard (non-swiveling) versions, listed above, should be used where ever possible because they cannot accidentally unscrew once a line is reeved through them.

 

Mast Base Swivel Block w/ 45mm Sheave - 8mm Stud: Z-300:
Block with 1 3/4" (45mm) diameter sheave will accommodate lines up to 7/16" (12mm) diameter. Includes 8mm stud with nut to fit deck castings with 8mm (5/16") holes and 1/2" (13mm) wide slots for nuts.

 

Z-300

Mast Base Swivel Block w/ 60mm Sheave - 10mm Stud: Z-301:
Block with 2 3/8" (60mm) diameter sheave will accommodate lines up to 1/2" (14mm) diameter. Includes 10mm stud with nut to fit deck castings with 10mm (3/8") holes and 11/16" (17mm) wide slots for nuts.

 

Z-301

Mast Base Swivel Block w/ 80mm Sheave - 10mm Stud: Z-302:
Block with 3 1/8" (80mm) diameter sheave will accommodate lines up to 5/8" (16mm) diameter. Includes 10mm stud with nut to fit deck castings with 10mm (3/8") holes and 11/16" (17mm) wide slots for nuts.

 

Z-302


Threaded Block Studs w/ Nut
Stainless Steel Threaded Block Studs (with nuts) to fit New-Style Z-Spar Mast Steps and Deck Collars are available separately. For use attaching items including shackles and blocks not listed above. New-Style Block Studs have a threaded lower end to fit special Nut. Special SS nut (included) slides into recess in side of deck casting, Block Stud screws into nut through hole in top of deck casting. Units are the same as those used in the blocks above.
 
Block Stud - 8mm w/ 6mm Hole: Z-300SA:
SS Block Stud with nut, to fit Z-Spar Steps and Collars with 8mm holes (5/16") and 1/2" (13mm) wide slots for nuts. SS nut slides into recess in side of deck casting and Block Stud screws in through hole in top. Stud is 38mm (1 1/2") long, top is (maximum) 12mm (15/32") wide with a 1/4" (6mm) hole for attachment of shackle or block. Lower end has an 8mm thread x 3/8" (10mm) long. Includes special large nut.

 


Block Stud - 10mm w/ 6mm Hole: Z-301SA:
SS Block Stud with nut, to fit Z-Spar Steps and Collars with 10mm (3/8") holes and 11/16" (17mm) wide slots for nuts. SS nut slides into recess in side of deck casting and Block Stud screws in through hole in top. Stud is 40mm (1 5/8") long, top is (maximum) 12mm (15/32") wide with a 1/4" (6mm) hole for attachment of shackle or block. Lower end has a 10mm thread x 7/16" (12mm) long. Includes special large nut.

 

Block Stud - 10mm Heavy-Duty w/ 8mm Hole: Z-302SA:
Heavy-Duty, Wide Block Stud with nut, to fit Z-Spar Steps and Collars with 10mm (3/8") holes and 11/16" (17mm) wide slots for nuts. SS nut slides into recess in side of deck casting and Block Stud screws in through hole in top. Stud is 40mm (1 5/8") long x 14mm (9/16") maximum diameter with a 5/16" (8mm) hole for attachment of shackle or block. Lower end has a 10mm thread x 3/8" (10mm) long. Includes special large nut.

 

Block Stud - 10mm w/ Narrow Toggle & 8mm Pin: Z-302TN:
Block Stud Assembly with Narrow Toggle and nut, to fit Z-Spar Steps and Collars with 10mm (3/8") holes and 11/16" (17mm) wide slots for nuts. SS nut slides into recess in side of deck casting, Toggle screw threads in through hole in top. Articulating Narrow Toggle has an 18mm (11/16") ID, and an 8mm clevis pin.

 

Block Stud - 10mm w/ Wide Toggle & 8mm Pin: Z-302TW:
Block Stud Assembly with Wide Toggle and nut, to fit Z-Spar Steps and Collars with 10mm (3/8") holes and 11/16" (17mm) wide slots for nuts. SS nut slides into recess in side of deck casting, Toggle screw threads in through hole in top. Articulating Wide Toggle has a 24mm (15/16") ID, and an 8mm clevis pin.

 


Block Pins
Clevis Pin-like Block Pins fit Z-Spar Steps and Collars with and without Nut Slots, and must be installed before attaching the Step or Collar to the Deck.
 
10mm Block Pin w/ 1/4" Hole: Z-301P:
SS Block Pin, to fit Z-Spar Steps and Collars with 10mm (3/8") holes, is 10mm OD x 1 1/8" long with hole for up to a 1/4" Pin.

 

12mm Block Pin w/ 1/4" Hole: Z-302P:
SS Block Pin, to fit Z-Spar Steps and Collars with 12mm (7/16") holes, is 12mm OD x 1 1/8" long with hole for up to a 1/4" Pin.

 

 

Step & Collar Bails
SS Bails are used on a variety Z-Spar Steps and Collars, primarily for attachment of a Boom Vang. Bails must be installed before attaching the Step or Collar to the Deck.
 
Small (6mm) Step & Collar Bail: Z-300VB:
Formed SS Bail is used on Mast Steps and Collars for Z351 and smaller Mast Sections. Primarily used for Vang attachment, 6mm Bail is 50mm (2") long x 1 1/4" high.

 

Large (10mm) Step & Collar Bail: Z-301VB:
Formed SS Bail is used on Mast Steps and Collars for Z400 and larger Mast Sections. Primarily used for Vang attachment, 10mm Bail is 67mm (2 5/8") long x 1 3/4" high.

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