SS Stand Up Swivel Block w/ 1 1/16" Sheave: Sch 02-62:

Schaefer 02 Stand Up Swivel Block on Spring with 1 1/16" Delrin Sheave for use with up to 3/8" line. Block has SS Cheeks, unit is 3 3/16" tall, Round plastic Base Pad is 2" diameter and attaches to deck with (3) 3/16" (#10) RH screws. Commonly used on boats up to 20' LOA, 02 Safe Working Load is 900 lbs.. Limited Availability.

SS Stand Up Swivel Block w/ 1 1/16" Sheave, Square Base: Sch 02-63X:

Schaefer 02 Stand Up Swivel Block on Spring with 1 1/16" Delrin Sheave for use with up to 3/8" line. Block has SS Cheeks, unit is 3 3/16" tall, 1 3/4" Square Base attaches to deck with (4) 3/16" (#10) screws on 1 1/16" x 1 1/16" centers. Commonly used on boats up to 20' LOA, 02 Safe Working Load is 900 lbs.. Limited Availability.

SS Stand Up Swivel Block w/ 1 7/16" Sheave: Sch 03-62:
Black Stand Up Swivel Block w/ 1 7/16" Sheave: Sch 303-62:

Schaefer 03 Stand Up Swivel Block on Spring with 1 7/16" Delrin Sheave for use with up to 7/16" line. Available with SS or Black Aluminum Cheeks, unit is 3 1/2" tall, Round plastic Base Pad is 2" diameter, and attaches to deck with (3) 3/16" (#10) RH screws. Commonly used on boats up to 24' LOA, 03 Safe Working Load is 1000 lbs..

SS Stand Up Swivel Block w/ 1 7/16" Sheave, Square Base: Sch 03-63X:

Schaefer 03 Stand Up Swivel Block on Spring with 1 7/16" Delrin Sheave for use with up to 7/16" line. Block has SS Cheeks, unit is 3 1/2" tall, 1 3/4" Square Base attaches to deck with (4) 3/16" (#10) FH screws on 1 1/2" circle centers. Commonly used on boats up to 24' LOA, 03 Safe Working Load is 1000 lbs.

Black Stand Up Swivel Block w/ 1 7/16" Sheaves, Square Base - Double: Sch 303-64X:

Schaefer 03 Stand Up Double Swivel Block on Spring with 1 7/16" Delrin Sheaves for use with up to 7/16" line. Block has Black Aluminum Cheeks, unit is 3 1/2" tall, 1 3/4" Square Base attaches to deck with (4) 3/16" (#10) FH screws on 1 1/2" circle centers. Commonly used as the Lead Block for Continuous Line Furling Systems.

Stand Up Mainsheet Fiddle Block w/ Integral Cam, Square Base: Sch SK-5802X:

Schaefer 03 Stand Up Fiddle Block on Spring features Integral SS Cam Cleat. Free-swiveling Block has Black Aluminum Cheeks and is suitable for use with up to 7/16" line. Unit is 5 1/2" tall, 1 3/4" Square Base attaches to deck with (4) 3/16" (#10) FH screws on 1 1/2" circle centers. Limited Availability.  SK-5802

Stand Up Mainsheet Fiddle Block w/ Cam Arm, Square Base: Sch 69-42X:

Schaefer 03 Stand Up Fiddle Block on Spring features SS Cam Cleat. Block has Black Aluminum Cheeks and is suitable for use with up to 3/8" line. Cam arm swivels with Block, up to 90 degrees. Unit is 5 1/2" tall, 1 3/4" Square Base attaches to deck with (4) 3/16" (#10) FH screws on 1 1/2" circle centers. SK-4809

Stand Up Mainsheet Fiddle Block w/ Becket, Cam Arm, Square Base: Sch 69-62X:

Schaefer 03 Stand Up Fiddle Block (w/ Removable Becket) on Spring features SS Cam Cleat. Block has Black Aluminum Cheeks and is suitable for use with up to 3/8" line. Cam arm swivels with Block, up to 90 degrees. Unit is 6 1/8" tall, 1 3/4" Square Base attaches to deck with (4) 3/16" (#10) FH screws on 1 1/2" circle centers. Limited Availability. SK-4409

Stand Up Swivel Block w/ 2" Sheave: Sch 05-62:
Schaefer 05 Stand Up Swivel Block on Spring with 2 3/8" Aluminum Sheave for use with up to 7/16" line and wire up to 3/16". Unit is 4 1/2" tall, Round plastic Base Pad is 2 7/8" diameter, and attaches to deck with (4) 3/16" (#10) RH screws on 2" circle centers. Commonly used on boats up to 28' LOA, 05 Safe Working Load is 1750 lbs..

Stand Up Swivel Block w/ 2" Aluminum Sheave: Sch 05-63AX:
Schaefer 05 Stand Up Swivel Block on Spring with 2 3/8" Aluminum Sheave for use with up to 7/16" line and wire up to 3/16". Unit is 4 1/2" tall, Round plastic Base Pad is 2 7/8" diameter, and attaches to deck with (4) 3/16" (#10) RH screws on 2" circle centers. 35-63

05 Removable Stand Up Swivel Block: Sch 34-22X:
Schaefer 05 Removable Stand Up Swivel Block on Spring with 2" Delrin Sheave for use with up to 7/16" line. Designed to screw into Sch 78-81 Round SS Deck Plate, below, Block extends 4 1/8" above Deck Plate. Perfect for use as a Foreguy Block.

05 Stand Up Swivel Fiddle Block: Sch 05-56X:

Schaefer 05 Stand Up Swivel Fiddle Block on Spring with (2) Delrin Sheaves for use with up to 7/16" line. Unit is 6 1/2" tall, Round plastic Base Pad is 2 7/8" diameter, and attaches to deck with (4) 3/16" (#10) RH screws on 2" circle centers.

Stand Up Deck Base Adapter for 504/505 Blocks: Sch 504-02:

Stand Up Deck Base Adapter converts any Schaefer 504 or 505 Block (with a 1/2" Round head) into a Stand up Deck Block on Spring. Unit is 1 1/2" tall, Round plastic Base Pad is 2 7/8" diameter, and attaches to deck with (4) 3/16" (#10) RH screws on 2" circle centers.

Stand Up Swivel Block w/ 2 3/8" Delrin Sheave: Sch 07-62:

Schaefer 07 Stand Up Swivel Block on Spring with 2 3/8" Delrin Sheave for use with up to 5/8" line. Unit is 5" tall, Round plastic Base Pad is 3 5/16" diameter, and attaches to deck with (4) 1/4" RH screws on 2 3/8" circle centers. Commonly used on boats up to 34' LOA, 07 Safe Working Load is 2250 lbs..

Stand Up Swivel Block w/ 2 3/8" Aluminum Sheave: Sch 07-63AX:

Schaefer 07 Stand Up Swivel Block on Spring with 2 3/8" Aluminum Sheave for use with up to 5/8" line and wire up to 3/16". Unit is 5" tall, Round plastic Base Pad is 3 5/16" diameter, and attaches to deck with (4) 1/4" RH screws on 2 3/8" circle centers. 35-6_

07 Removable Stand Up Swivel Block: Sch 34-24X:
Schaefer 07 Removable Stand Up Swivel Block on Spring with 2 3/8" Delrin Sheave for use with up to 5/8" line. Designed to screw into Sch 78-81 Round SS Deck Plate, below, Block extends 4 3/4" above Deck Plate. Perfect for use as a Foreguy Block.

07 Stand Up Swivel Becket Block: Sch 07-64X:
Schaefer 07 Stand Up Swivel Becket Block on Spring with 2 3/8" Delrin Sheave for use with up to 5/8" line. Unit is (maximum) 6 1/2" tall (including Becket), Round plastic Base Pad is 3 5/16" diameter, and attaches to deck with (4) 1/4" RH screws on 2 3/8" circle centers. Becket ferrule is removable, allowing easy attachment of pre-spliced line.

07 Stand Up Swivel Fiddle Block: Sch 07-56X:
Schaefer 07 Stand Up Swivel Fiddle Block on Spring with 2 3/8" Delrin Sheave (2 lower sheaves are 2" dia.) for use with up to 5/8" line. Unit is 5" tall, Round plastic Base Pad is 3 5/16" diameter, and attaches to deck with (4) 1/4" RH screws on 2 3/8" circle centers. SK-2917

Stand Up Deck Base Adapter for 704/705 Blocks: Sch 704-02:

Stand Up Deck Base Adapter converts any Schaefer 704 or 705 Block (with a 5/8" Round head) into a Stand up Deck Block on Spring. Unit is 1 3/4" tall, Round plastic Base Pad is 3 5/16" diameter, and attaches to deck with (4) 1/4" RH screws on 2 3/8" circle centers.

Stand Up SS Swivel Block w/ 2 3/8" Delrin Sheave: Sch 08-62:
Stand Up Black Swivel Block w/ 2 3/8" Delrin Sheave: Sch 09-62X:

Schaefer 08/09 Stand Up Swivel Block on Spring with 2 3/8" Delrin Sheave for use with up to 9/16" line. Unit is 5" tall, Round plastic Base Pad is 3 5/16" diameter, and attaches to deck with (4) 1/4" RH screws on 2 3/8" circle centers. Commonly used on boats up to 42' LOA, 08/09 Safe Working Load is 2750 lbs..

Stand Up SS Swivel Block w/ 2 3/8" Aluminum Sheave: Sch 08-63X:

Schaefer 08 SS Stand Up Swivel Block on Spring with 2 3/8" Aluminum Sheave for use with up to 9/16" line. Unit is 5" tall, Round plastic Base Pad is 3 5/16" diameter, and attaches to deck with (4) 1/4" RH screws on 2 3/8" circle centers. Commonly used on boats up to 42' LOA, 08 Safe Working Load is 2750 lbs..

Stand Up SS Swivel Block w/ 2 3/8" Aluminum Ball-bearing Sheave: Sch 08-62-UC:

Schaefer 08 Series SS Stand Up Swivel Block on Spring with 2 3/8" Aluminum 'Circuit' Sheave with Torlon Ball-bearings for use with up to 9/16" line. Unit is 5" tall, Round plastic Base Pad is 3 5/16" diameter, and attaches to deck with (4) 1/4" RH screws on 2 3/8" circle centers. Commonly used on boats up to 42' LOA, 08 Series Safe Working Load is 2750 lbs..

Stand Up SS Swivel Block w/ 3 1/4" Delrin Sheave: Sch 10-62X:

Schaefer 10 Series SS Stand Up Swivel Block on Spring with 3 1/4" Delrin Sheave for use with up to 5/8" line. Unit is 6 1/4" tall, Round plastic Base Pad is 4 1/2" diameter, and attaches to deck with (4) 5/16" RH screws on 3 1/4" circle centers. Commonly used on boats up to 48' LOA, 10 Series Safe Working Load is 3750 lbs..

Stand Up SS Swivel Block w/ 3 1/4" Aluminum Sheave: Sch 10-63X:

Schaefer 10 Series SS Stand Up Swivel Block on Spring with 3 1/4" Aluminum Sheave for use with up to 5/8" line. Unit is 6 1/4" tall, Round plastic Base Pad is 4 1/2" diameter, and attaches to deck with (4) 5/16" RH screws on 3 1/4" circle centers. Commonly used on boats up to 48' LOA, 10 Series Safe Working Load is 3750 lbs.. 31-63

Stand Up SS Swivel Block w/ 3 1/4" Aluminum Ball-bearing Sheave: Sch 10-62-UC:

Schaefer 10 Series SS Stand Up Swivel Block on Spring with 3 1/4" Aluminum 'Circuit' Sheave with Torlon Ball-bearings for use with up to 5/8" line. Unit is 6 1/4" tall, Round plastic Base Pad is 4 1/2" diameter, and attaches to deck with (4) 5/16" RH screws on 3 1/4" circle centers. Commonly used on boats up to 48' LOA, 10 Series Safe Working Load is 3750 lbs..

Stand Up SS Swivel Block w/ 3 1/4" Delrin Sheaves - Double: Sch 10-64X:

Schaefer 10 Series SS Stand Up Double Swivel Block on Spring with 3 1/4" Delrin Sheaves for use with up to 5/8" line. Unit is 6 1/4" tall, Round plastic Base Pad is 4 1/2" diameter, and attaches to deck with (4) 5/16" RH screws on 3 1/4" circle centers. Commonly used on boats up to 48' LOA, 10 Series Safe Working Load is 3750 lbs..