Isomat BF5 Spreader

Please Note: Early version of the BF-5 Spreader (pre-1985) had similar outside dimensions (6" x 1 3/8") but had no 'tail'. Spreaders were supplied with a cut and welded taper (to 3" x 7/8"), and a welded tip. While the Old-style BF-5 Spreaders and extrusion are no longer available, the original welded tip, BF5-1XA, detailed below, is. Note: Old-style BF-5 Spreaders and Spreader Bases are not compatible with the New-style BF-5 Spreaders or Spreader Bases shown here.
BF-5 Spreaders Spreader Tips & Components Spreader Bases & Components Spreader Bars & Components

BF-5 Standard Spreader Assembly, Complete: BF5SAC-____: Standard BF5 Spreader Assembly is anodized, Tapered, drilled for attachment to standard Cast Spreader Bases, and includes BF5-1K Spreader Tip Assembly. To order: specify maximum tube length, and sweepback angle (if any). For Spreaders used with Spreader Bars for Stemball seats, specify Port or Starboard and the part number of the Spreader Bar, as well. Specify Spreader Tip if other than the BF5-1K Spreader Tip is required. Painted finishes are available on special order, specify color.
BF-5 Standard Spreader Tube Only, Tapered & Drilled: BF5TT-____: For replacement purposes when using original end fittings, BF5 Spreader Tubes are available anodized and Tapered with inboard angles cut, and drilled for attachment to standard Cast Spreader Bases and Tip. To order: specify maximum tube length, and sweepback angle (if any), for Spreaders used with Spreader Bars for Stemball seats, specify Port or Starboard and the part number of the Spreader Bar, as well. Painted finishes are available on special order, specify color.
*BF-5 Spreader Section, Clear Anodized: BF5CA-____:* BF5 Spreader Section is available clear anodized, but without taper or drilling at lengths up to 20'. To order specify maximum length.

Spreader Tips & Components for BF5 Spreaders
*Spreader Tip Ass'y for BF-5 Spreader - Standard: BF5-1K:* Assembly features smooth Outer Tip to capture shrouds, and Inner Tip casting that rests against the Spreader Section and provides a seat for up to 2 shrouds. Kit includes Outer & Inner Tip Castings, Spreader Boot, & screw, for 1 Spreader. For use on rigs with Continuous Shrouds up to 14mm (9/16") diameter.
	Outer Tip Casting for BF-5 Spreader: BF5-2: Smooth Outer Tip Casting captures shrouds and fastens to Spreader with (1) #12 SS Screw. Aluminum Spreader Tip is (maximum) 4 1/4" (107mm) fore & aft and extends 1" beyond Spreader tube.
	Inner Tip Casting for BF-5 Spreader: BF5-3: Inner Tip Casting provides seats for 2 shrouds and protects Spreader tube from chafe. Inner Tip Casting is (maximum) 2 1/16" (53mm) fore & aft.
	Spreader Boots for BF-5 Spreader: BF5-4P: White molded vinyl boot protects sails from chafing against Continuous Spreader Tip. Spreader Boots are sold in pairs only.
*Flag Halyard Eye for BF-5 Continuous Tip: BF3-5C:* Optional SS Flag Halyard Eye fits in slot on underside of Continuous Spreader Tip Casting BF5-2, and provides for attachment of Flag halyard with or without a block.

*Spreader Tip for BF-5 OLD-style Spreaders: BF4-1XA:*
Spreader Tip for BF-4 and BF-5 Old-style Spreaders. Tip is welded to BF-5 Old-style Spreader tapered to 3" x 7/8". Cast aluminum Spreader Tip is (maximum) 3" long x 7/8" thick, and extends 1 5/8" beyond Spreader tube. Includes 6mm SS retaining screw to captivate shroud. Please Note: Old-style BF-5 Spreader had similar dimensions to the current BF-5, but had no 'tail'. Old-style BF-5 Spreaders and extrusion are no longer available. Old-style BF-5 Spreaders and Spreader Bases are not compatible with the BF-5 Spreaders or Spreader Bases shown here. 304201
Boots for BF-5 OLD-style Spreader Tip: BF4-4XP: White molded vinyl boot protects sails from chafing against BF-4 and BF-5 OLD-style Spreader Tip. OLD-style Boot also covers shroud 1" above and below the Spreader Tip. Spreader Boots are sold in pairs only.

Discontinuous Spreader Tips for BF5 Spreaders
*BF-5 Discontinuous Spreader Tip w/ 10mm Pin: BF5-10A:* *BF-5 Discontinuous Spreader Tip w/ 12mm Pin: BF5-12A:* *BF-5 Discontinuous Spreader Tip w/ 14mm Pin: BF5-14A:* *BF-5 Discontinuous Spreader Tip w/ 16mm Pin: BF5-16A:* *BF-5 Discontinuous Spreader Tip w/ 18mm Pin: BF5-18A:* *BF-5 Discontinuous Spreader Tip w/ 20mm Pin: BF5-20A:* Standard Assembly provides horizontal pin for attachment of Discontinuous Shrouds. Includes anodized cast aluminum tip with horizontal pin and cotter pin. Unit projects (maximum) 2" (50mm) from end of spreader tube. Slot width (at pin) is 2" (50mm), pin center is 1 3/16" (30mm) from tube end.
	*Casting Only for BF-5 Disc. Tip - 10mm: BF5-10:* *Casting Only for BF-5 Disc. Tip - 12mm: BF5-12:* *Casting Only for BF-5 Disc. Tip - 14mm: BF5-14:* *Casting Only for BF-5 Disc. Tip - 16mm: BF5-16:* *Casting Only for BF-5 Disc. Tip - 18mm: BF5-18:* *Casting Only for BF-5 Disc. Tip - 20mm: BF5-20:* As BF5 Discontinuous Spreader Tip Assemblies above, but without pins.
	*10mm Pin for BF-5 Disc. Spreader Tip: BF5-10P:* *12mm Pin for BF-5 Disc. Spreader Tip: BF5-12P:* *14mm Pin for BF-5 Disc. Spreader Tip: BF5-14P:* *16mm Pin for BF-5 Disc. Spreader Tip: BF5-16P:* *18mm Pin for BF-5 Disc. Spreader Tip: BF5-18P:* *20mm Pin for BF-5 Disc. Spreader Tip: BF5-20P:* Pins only for BF5 Standard Single Pin Discontinuous Spreader Tip Assemblies, above. Pins are 100mm (4") long.
Spreader Boots for BF-5 Disc. Spreader Tip: BF5-4DP: White molded vinyl boot protects sails from chafing against Standard Single Pin Discontinuous Spreader Tip, above. Spreader Boots are sold in pairs only.
*Flag Halyard Eye for BF-5 Discontinuous Tip: BF3-5D:* Optional SS Flag Halyard Eye fits in slot on underside of Standard Discontinuous Spreader Tip Castings BF5-10 through BF5-20, above, and provides for attachment of Flag halyard with or without a block.

BF-5 Discontinuous Spreader Tip w/ 5/8" Pin - Special - Cal 39: BF5-C39A:
Special Spreader Tip Assembly for BF5 Spreader provides 5/8" horizontal pin for attachment of Discontinuous Shrouds. Includes anodized cast aluminum tip with horizontal pin and cotter pin. Unit projects (maximum) 2 7/16" (62mm) from end of spreader tube. Slot width (at pin) is 1 13/16" (46mm), pin center is 1 5/8" (41mm) from tube end. As used on Cal 39.

BF-5 Stemball Seat Tip w/ 16mm Pin: BF5-16SA: BF-5 Stemball Seat Tip w/ 18mm Pin: BF5-18SA: BF-5 Stemball Seat Tip w/ 20mm Pin: BF5-20SA: BF-5 Stemball Seat Tip w/ 22mm Pin: BF5-22SA: BF-5 Stemball Seat Tip w/ 25mm Pin: BF5-25SA: Stemball Seat Spreader Tip Assembly for BF5 Spreader with enclosed horizontal pin for attachment of Vertical Shrouds and recessed seat for *NG1* Stemball on Diagonal Shrouds up to 3/8" or 10mm. Anodized cast aluminum Tip is (maximum) 4 1/8" (105mm) wide and projects 4 5/8" (117mm) from end of spreader tube. Slot width is 2 7/8" (73mm), Pin center is 2 5/8" (67mm) from tube end, Stemball seat (for 26mm cup washer) center is 3/4" (20mm) from tube end. As used on Beneteau 49, and others.
	*BF-5 Stemball Seat Tip for 18mm Pin: BF5-18SC:* *BF-5 Stemball Seat Tip for 16/20/25mm Pin: BF5-20SC:* *BF-5 Stemball Seat Tip for 22mm Pin: BF5-22SC:* Casting only, as used in for BF5 Stemball Seat Spreader Tip, above. Anodized cast aluminum Tip is (maximum) 4 1/8" (105mm) wide and projects 4 5/8" (117mm) from end of spreader tube.
	16mm Pin for BF-5 Stemball Seat Tip: BF5-16SAP: 18mm Pin for BF-5 Stemball Seat Tip: BF5-18SAP: 20mm Pin for BF-5 Stemball Seat Tip: BF5-20SAP: 22mm Pin for BF-5 Stemball Seat Tip: BF5-22SAP: 25mm Pin for BF-5 Stemball Seat Tip: BF5-25SAP: SS Pins only for BF5 Stemball Seat Discontinuous Spreader Tip, above. Pins are 105mm (4 1/8") long. 16 and 25mm Pins are Assemblies specially machined to fit in 20mm Pin hole.

BF-5 Spreader Tip for Navtec Tip Cup: BF5-NL500-30: Special BF-5 Spreader Tip has a 2.48" (63mm) hole for Spreader Tip Cup. Designed for Navtec L500 Tip Cups with -30 VL's, OS standard Tip Cups for -12 to -30VL's, -22 VU's and -15 D's, and others with similar dimensions. Machined from 6061-T6 Aluminum Bar stock, unit has a 2.485" Tip Cup hole, is 1.140" thick (at hole) and incorporates slot for anti-rotational lock pin. Unit features appropriate clearances for Tip Cup and projects (maximum) 3 3/4" (95mm) from end of spreader tube. Tip Cup hole center is 2" (50mm) from tube end.
BF-5 Spreader Tip for Navtec Tip Cup: BF5-NL500-40: Special BF-5 Spreader Tip has a 2.66" (67mm) hole for Spreader Tip Cup. Designed for Navtec L500 Tip Cups with -40 VL's, unit is also suitable for other Tip Cups with similar dimensions. Machined from 6061-T6 Aluminum Bar stock, unit has a 2.665" Tip Cup hole, is 1.395" thick (at hole) and incorporates slot for anti-rotational lock pin. Unit features appropriate clearances for Tip Cup and projects (maximum) 3 3/4" (95mm) from end of spreader tube. Tip Cup hole center is 2" (50mm) from tube end.
BF-5 Spreader Tip for Tip Cup: BF5-NL528-48: BF-5 Spreader Tip has a 2.81" (71mm) hole for Spreader Tip Cup. Designed for use with Navtec L528-48 and -60 Tip Cups, unit is also suitable for other Tip Cups with similar dimensions. Anodized cast aluminum Tip has a 2.81" (71mm) Tip Cup hole, is 1.275" thick (at hole) and incorporates slot for anti-rotational lock pin, as well as holes for a 16mm (5/8") cross pin. Unit features appropriate clearances for Tip Cup and projects (maximum) 4 3/8" (112mm) from end of spreader tube. Tip Cup hole center is 2 1/2" (64mm) from tube end.

Spreader Bases & Components for BF5 Spreaders
Spreader Base Clevis Pin: BF5-30: Attaches BF5 Spreader to standard Cast Aluminum Base. SS Clevis Pin is 12mm diameter x 45mm (1 3/4") long.
Spreader Base Clevis Pin, Old-style BF5 - 12mm: BF4-30: Attaches BF4 or Old-style BF5 Spreader to standard Cast Aluminum Base. SS Clevis Pin is 12mm diameter x 38mm (1 1/2") long.
Spreader Base Bushing, 20mm OD - Rubber: BF4-31R: Black Rubber Bushing fits newer Cast aluminum BF4 and BF5 Spreader Bases with a 20mm (13/16") Bushing hole. Bushing is 20mm OD (13/16") x 21mm long x 12mm ID (7/16"). Rubber version is recommended for greater shock cushioning.
Spreader Base Bushing, 20mm OD - Plastic: BF4-31: Hard white plastic Bushing fits newer Cast aluminum BF4 and BF5 Spreader Bases with a 20mm (13/16") Bushing hole. Bushing is 20mm OD (13/16") x 21mm long x 12mm ID (7/16").
Old Spreader Base Bushing, 26mm OD - Plastic: BF5-31XP: Old-style Hard white plastic Bushing fits older Cast aluminum Spreader Bases with a 26mm (1 1/32") Bushing hole. Bushing is 26mm OD (1 1/32") x 12mm ID (7/16").
Old Spreader Base Bushing, 30mm OD - Rubber: BF5-31XR: Old-style Black Rubber Bushing fits older Cast aluminum Spreader Bases with a 30mm (1 1/8") Bushing hole. Bushing is 30mm OD (1 1/8") x 12mm ID (7/16").
*BF-5 Standard Spreader Base - Port: BF5-35P:* *BF-5 Standard Spreader Base - Starboard: BF5-35S:* Unique spreader base design incorporates (2) sockets for use with NG2 Stemballs on lower and intermediate shrouds. Cast aluminum bases are welded to the mast and accommodate a variety of spreader angles depending on how the inboard spreader end is cut. BF5 Spreader is attached with (1) 12mm clevis pin that goes through a plastic bushing to allow for some shock loading. New Bases have hole for 21mm (13/16") OD Spreader Bushing, BF5-31. Base measures 5 1/2" high (maximum) x 6 3/8" long, and projects 5 1/4" out from the Mast. For use with NG-70 and larger Mast sections.
NG2 Stemball Cup Washer: NG2-CW20: Standard NG2 Stemball Cup Washer is used with swage and mechanical Stemballs in NG2 Mastheads, Spreader Bases and in other applications. Type 316 SS Cup Washer is 34mm (>1 5/16") OD x 20mm (>3/4") ID x 11.5mm (7/16") high.

Spreader Bars & Components for BF5 Spreaders
Aluminum Spreader Bars for BF5 Spreaders have been produced in a variety of configurations, and are sometimes machined for use with a variety of wire and rod Stemballs. They are also available in a variety of lengths and angles not listed here. For items not listed, please specify Mast Section, sweepback angle, and rigging configuration.
*BF-5 Rectangular Aluminum Spreader Bar, 0° aft: BF5-40-0:* *BF-5 Rectangular Aluminum Spreader Bar, __° aft: BF5-40-__:*
Original Rectangular Aluminum Bars for BF5 Spreaders is 30mm thick x 50mm wide. No longer used in production, but available for replacement purposes in a variety of lengths, and horizontal and vertical angles. Standard vertical angle is 5°, standard length is 445mm (17 1/2"). To Order: If other than 0° aft, Specify sweepback angle aft, and (for rare special applications) alternate vertical angles.

*BF-5 Extruded Aluminum Spreader Bar, 0° aft: BF5-41-0:* *BF-5 Extruded Aluminum Spreader Bar, __° aft: BF5-41-__:*
New-style Extruded Aluminum Spreader Bar for BF5 Spreader is 35mm (1 3/8") thick x 80mm (3 1/8") wide x 17 1/2" (445mm) long, and incorporates a 5° vertical angle for 0° (in-line) Spreaders. Used with NG-70 and larger Mast Sections. To Order: If other than 0° aft, Specify sweepback angle aft, and (for rare special applications) alternate vertical angles.

*BF-5 Machined Alu. Spreader Bar, 14° aft: BF5-42-14-1395:* Special machined Aluminum Spreader Bar for BF5 Spreader in rigs with a 14 degree aft spreader sweep. Bar is 13/16" (20mm) thick x 3 13/16" (95mm) wide x 19 5/8" (500mm) long, and incorporates a 5° vertical angle for 14° aft Spreaders. Used with FM-1395 and other Mast Sections.
*BF-5 Machined Alu. Spreader Bar, 18° aft: BF5-42-18-105:* Special machined Aluminum Spreader Bar for BF5 Spreader in rigs with a 18 degree aft spreader sweep. Bar is 13/16" (20mm) thick x 3 13/16" (95mm) wide x 19 5/8" (500mm) long, and incorporates a 5° vertical angle for 18° aft Spreaders. Used with NG-105 and other Mast Sections. As used on Beneteau 50.
*Doubler Plates for BF-5 Machined Spreader Bar: BF5-42N:* Formed Aluminum Doubler Plate Set (pair) is contoured to fit the mast section and reinforces it for use with any size BF5-42 Machined Aluminum Spreader Bar. Rectangular Plate is (maximum) 8" (200mm) long x 4" (100mm) high, and is attached to the mast with (8) 1/4" (6mm) rivets. Slot in plate is (maximum) 7/8" (22mm) high. Note: This item is only available on a Custom basis. To order: Specify Mast Section.
*BF-5 Machined Alu. Spreader Bar w/ cut-out, 0° aft: BF5-42E-0C:*
Special machined Aluminum Spreader Bar for BF5 Spreader has forward cut-out for use in Furling Masts where halyard clearance is limited. Spreader Bar is 3/4" (19mm) thick x 3 1/2" (90mm) wide x 17 1/4" (440mm) long, and incorporates a 5° vertical angle for 0° (in-line) Spreaders. As used on Island Packet 485 with F-1410E Furling Mast.
*BF-5 Machined Alu. Spreader Bar w/ cut-out, 20° aft: BF5-42E-B49:*
Special machined Aluminum Spreader Bar for BF5 Spreader for use in F-980E Furling Mast. Spreader Bar is 3/4" (19mm) thick x 3 1/2" (90mm) wide x 15 1/4" (386mm) long, with a 5° vertical angle for 20° aft Spreaders and incorporates seats for NG2 wire or rod Stemballs. As used on Beneteau 49.
Note: Aluminum Spreader Bars for BF5 Spreaders are also available in a variety of lengths and angles not listed here, and are sometimes machined for use with a variety of wire and rod Stemballs. When inquiring please specify Mast Section, sweepback angle, and rigging configuration. MMW/LOA; A160/410, B187/437, C220/510. 110E-HC

**BF-5 SS Spreader Bar (FM740, S622): BF5-43-128: BF-5 SS Spreader Bar (S830): BF5-43-140: BF-5 SS Spreader Bar (FM1060, NG70): BF5-43-144: BF-5 SS Spreader Bar (FM1395, NG80): BF5-43-156: BF-5 SS Spreader Bar (NG86): BF5-43-171: BF-5 SS Spreader Bar (FM2390, NG105): BF5-43-182: Cast SS Spreader Bar for BF5 Spreader incorporates seats for NG1 wire or rod Stemballs and is suitable for Spreaders angled up to 25° aft. SS Spreader Bar is (maximum) 1 3/4" (45mm) high x 5 1/8" (130mm) fore & aft, and incorporates a 5 degree vertical angle. This item requires a contoured cut-out in the Mast wall, and is available in a variety of lengths for use with different Mast Sections. Standard sizes (lengths) are listed above, and denote the Mast width that these Bars are used with. Most units are marked with that length (length between the edges of the large holes nearest the Mast). Used with Mast Sections FM-740 to FM-2390 and up to NG-105.** Attaches to Spreaders using standard Spreader Base Clevis Pins, BF5-30, above. As used on Beneteau 44.7, 47.7, 49, and others. To order: Specify Bar length (maximum at mid-section), Bar size (if marked), or Mast Section. Please Note: This item is also available on a Custom basis in lengths for non-standard Mast Sections, Please specify. 1410SD-L165
*Doubler Plates for BF-5 SS Spreader Bar, angled: BF5-43FP-_:* *Doubler Plates for BF-5 SS Spreader Bar, straight: BF5-43UP-_:* Formed Aluminum Doubler Plate Set (pair) is contoured to fit the mast section and reinforces it for use with any size BF5-43 SS Spreader Bar. Rectangular Plate is (maximum) 6 1/2" (165mm) long x 5 7/8" (150mm) high, and is attached to the mast with (11) 1/4" (6mm) rivets. Slot in plate is (maximum) 1 3/4" (46mm) high. Note: This item is only available on a Custom basis. To order: Specify Boat type, Mast Section, Spreader Bar installation (angled or horizontal) and maximum length of Spreader Bar (fore & aft).

Your cart

Spars, Rigging, and Hardware for Sailboats