US Dollars
Blocks
Product Availability Notice:
Not all products shown online are stocked at our retail location. Many items may be available from our warehouse or suppliers and can be ordered for you; availability and lead times vary.
We do not offer shipping; in-store pick up only
If calling to check availability or price, please have the manufacturer's part number (MPN) ready. We are unable to search our product database by description alone.
Not all products shown online are stocked at our retail location. Many items may be available from our warehouse or suppliers and can be ordered for you; availability and lead times vary.
We do not offer shipping; in-store pick up only
If calling to check availability or price, please have the manufacturer's part number (MPN) ready. We are unable to search our product database by description alone.
Sub Categories
![Schaefer Stand-Up Swivel - Aluminum Block [704-62]](https://cdn11.bigcommerce.com/s-ge8sirtax0/images/stencil/230x230/products/15774/19727/74739XL__18035.1677990501.jpg?c=1 "Schaefer Stand-Up Swivel - Aluminum Block [704-62]")
Schaefer Marine
Schaefer Stand-Up Swivel - Aluminum Block [704-62]
Stand-Up Swivel - Aluminum BlockSpecifications:Sheave Dia. 2-2/8" (60 mm)Max Line 1/2" (13 mm)Diameter includes urethane base 3-3/8" (86 mm)Height 4-25/32" (120 mm)H2 2-15/32" (63 mm)Fastener Size...
![Schaefer Series 7 Flat Base\/Aluminum Cheek\/Delrin Sheave [704-11]](https://cdn11.bigcommerce.com/s-ge8sirtax0/images/stencil/230x230/products/15773/19726/74738XL__77265.1677990499.jpg?c=1 "Schaefer Series 7 Flat Base\/Aluminum Cheek\/Delrin Sheave [704-11]")
Schaefer Marine
Schaefer Series 7 Flat Base/Aluminum Cheek/Delrin Sheave [704-11]
Series 7 Flat Base/Aluminum Cheek/Delrin SheaveDelrin™ sheave ensures smooth operation and high safe working load. Stainless steel base distributes loads to a large surface area...
![Schaefer Single Aluminum Block - 60mm Sheave [704-05]](https://cdn11.bigcommerce.com/s-ge8sirtax0/images/stencil/230x230/products/15772/19725/74737XL__09827.1677990497.jpg?c=1 "Schaefer Single Aluminum Block - 60mm Sheave [704-05]")
Schaefer Marine
Schaefer Single Aluminum Block - 60mm Sheave [704-05]
Single Aluminum Block - 60mm SheaveDelrin™ sheave ensures smooth operation and a high safe working load. Swivel head may be locked in place to eliminate twisting. Specifications:Sheave Diameter 2...
![Schaefer Clear Step Lead Block f\/1" Stanchions [506-44]](https://cdn11.bigcommerce.com/s-ge8sirtax0/images/stencil/230x230/products/15767/19708/74732XL__05640.1677990476.jpg?c=1 "Schaefer Clear Step Lead Block f\/1\" Stanchions [506-44]")
Schaefer Marine
Schaefer Clear Step Lead Block f/1" Stanchions [506-44]
Clear Step Lead Block for 1" StanchionsUnique design leads your furling control line outside of your stanchions for a clean lead aft to the cockpit. Stainless cheeks with Delrin(tm) ball bearing...
![Schaefer Single Ball Bearing Block [506-05]](https://cdn11.bigcommerce.com/s-ge8sirtax0/images/stencil/230x230/products/15766/19707/74731XL__93569.1677990474.jpg?c=1 "Schaefer Single Ball Bearing Block [506-05]")
Schaefer Marine
Schaefer Single Ball Bearing Block [506-05]
Single Ball Bearing BlockSingle block with aluminum cheeks and ball bearing sheave. Delrin™ ball bearing sheave ensures low-friction operation. Swivel head may be locked in place to avoid twist...
![Schaefer Series 5 Flat Base Cheek Block - Stainless Steel Cheeks [505-11]](https://cdn11.bigcommerce.com/s-ge8sirtax0/images/stencil/230x230/products/15763/19698/74727XL__59049.1677990463.jpg?c=1 "Schaefer Series 5 Flat Base Cheek Block - Stainless Steel Cheeks [505-11]")
Schaefer Marine
Schaefer Series 5 Flat Base Cheek Block - Stainless Steel Cheeks [505-11]
Series 5 Flat Base Cheek Block - Stainless Steel CheeksSeries 5 Cheek Block with Stainless Steel cheek. Delrin™ sheave ensures smooth operation and high safe working load. Stainless steel base...
![Schaefer Single Stainless Steel Block - 51mm Sheave [505-05]](https://cdn11.bigcommerce.com/s-ge8sirtax0/images/stencil/230x230/products/15761/19693/74724XL__67512.1677990457.jpg?c=1 "Schaefer Single Stainless Steel Block - 51mm Sheave [505-05]")
Schaefer Marine
Schaefer Single Stainless Steel Block - 51mm Sheave [505-05]
Single Stainless Steel Block - 51mm SheaveSingle block with stainless steel cheeks. Delrin™ sheave ensures smooth operation and high safe working load. Specifications:Sheave Dia. 2" (51mm)Thickness...
![Schaefer Spring Loaded\/Lined Slide\/Aluminum f\/1" T-Track [504-82]](https://cdn11.bigcommerce.com/s-ge8sirtax0/images/stencil/230x230/products/15758/19685/74718XL__94599.1677990446.jpg?c=1 "Schaefer Spring Loaded\/Lined Slide\/Aluminum f\/1\" T-Track [504-82]")
Schaefer Marine
Schaefer Spring Loaded/Lined Slide/Aluminum f/1" T-Track [504-82]
Spring Loaded/Lined Slide/Aluminum for 1" T-TrackDelrin™ sheave ensures smooth operation and high safe working load. Anodized aluminum cheeks and stainless steel slider ensure reliability...
![Schaefer Stand-Up Swivel w\/Aluminum Cheeks [504-62]](https://cdn11.bigcommerce.com/s-ge8sirtax0/images/stencil/230x230/products/15757/19684/74717XL__66491.1677990443.jpg?c=1 "Schaefer Stand-Up Swivel w\/Aluminum Cheeks [504-62]")
Schaefer Marine
Schaefer Stand-Up Swivel w/Aluminum Cheeks [504-62]
Stand-Up Swivel with Aluminum CheeksDelrin™ sheave ensures smooth operation and high safe working load. Specifications:Sheave Dia. 2" (51 mm)Max Line 7/16" (11 mm)Diameter includes urethane base...
![Schaefer Series 5 Flat Base\/Alum Cheek\/Delrin Sheave [504-11]](https://cdn11.bigcommerce.com/s-ge8sirtax0/images/stencil/230x230/products/15756/19683/74716XL__03545.1677990441.jpg?c=1 "Schaefer Series 5 Flat Base\/Alum Cheek\/Delrin Sheave [504-11]")
Schaefer Marine
Schaefer Series 5 Flat Base/Alum Cheek/Delrin Sheave [504-11]
Series 5 Flat Base/Alum Cheek/Delrin SheaveDelrin™ sheave ensures smooth operation and high safe working load. Stainless steel base distributes loads to a large surface area. Specifications:Sheave...
![Schaefer Single Aluminum Block - 51mm Sheave [504-05]](https://cdn11.bigcommerce.com/s-ge8sirtax0/images/stencil/230x230/products/15755/19681/74715XL__74159.1677990439.jpg?c=1 "Schaefer Single Aluminum Block - 51mm Sheave [504-05]")
Schaefer Marine
Schaefer Single Aluminum Block - 51mm Sheave [504-05]
Single Aluminum Block - 51mm SheaveSingle block with anodized aluminum cheeks. Delrin™ sheave ensures smooth operation with high safe working load. Swivel head may be locked in place to avoid twist...
![Schaefer Twin Sheet Block f\/1-1\/4" T-Track - Black [32-97]](https://cdn11.bigcommerce.com/s-ge8sirtax0/images/stencil/230x230/products/15750/19676/74708XL__35772.1677990428.jpg?c=1 "Schaefer Twin Sheet Block f\/1-1\/4\" T-Track - Black [32-97]")
Schaefer Marine
Schaefer Twin Sheet Block f/1-1/4" T-Track - Black [32-97]
Twin Sheet Block for 1-1/4" T-Track - BlackHardcoat anodized aluminum body and slider provide a high strength block. Aluminum sheave runs on nomex™/Teflon™ bearing for a low-friction, high strength...
![Schaefer Series 3 Flat Base\/Alum Cheek\/Delrin Sheave [303-09]](https://cdn11.bigcommerce.com/s-ge8sirtax0/images/stencil/230x230/products/15749/19675/74707XL__87706.1677990426.jpg?c=1 "Schaefer Series 3 Flat Base\/Alum Cheek\/Delrin Sheave [303-09]")
Schaefer Marine
Schaefer Series 3 Flat Base/Alum Cheek/Delrin Sheave [303-09]
Series 3 Flat Base/Alum Cheek/Delrin SheaveDelrin™ plain bearing sheave ensures smooth operation and high safe working load. Stainless Steel base distributes loads to a larger surface area...
![Schaefer Pulpit Furling Lead Spring Loaded Block - 1" Ball Bearing [300-35]](https://cdn11.bigcommerce.com/s-ge8sirtax0/images/stencil/230x230/products/15748/19674/74706XL__16474.1677990423.jpg?c=1 "Schaefer Pulpit Furling Lead Spring Loaded Block - 1\" Ball Bearing [300-35]")
Schaefer Marine
Schaefer Pulpit Furling Lead Spring Loaded Block - 1" Ball Bearing [300-35]
Pulpit Furling Lead Spring Loaded Block - 1" Ball BearingThe Stainless Steel spring guarantees maximum support for the block. Delrin™ ball bearing sheave ensures low-friction lead for your furling...
![Schaefer Clamp-On Furling Line Stanchion Lead Block - 1" Ball Bearing [300-34]](https://cdn11.bigcommerce.com/s-ge8sirtax0/images/stencil/230x230/products/15747/19672/74705XL__18532.1677990420.jpg?c=1 "Schaefer Clamp-On Furling Line Stanchion Lead Block - 1\" Ball Bearing [300-34]")
Schaefer Marine
Schaefer Clamp-On Furling Line Stanchion Lead Block - 1" Ball Bearing [300-34]
Clamp-On Furling Line Stanchion Lead Block - 1" Ball BearingDelrin™ ball bearing sheave allows for quick and easy furling line adjustment. Stainless steel cage and strap ensure durability...
![Ronstan Series 30 Utility Ball Bearing Block - Single, Swivel Shackle Head [RF30100]](https://cdn11.bigcommerce.com/s-ge8sirtax0/images/stencil/230x230/products/14711/18279/72397XL__10646.1677987773.jpg?c=1 "Ronstan Series 30 Utility Ball Bearing Block - Single, Swivel Shackle Head [RF30100]")
Ronstan
Ronstan Series 30 Utility Ball Bearing Block - Single, Swivel Shackle Head [RF30100]
Series 30 Utility Ball Bearing Block - Single, Swivel Shackle HeadFeatures:Low friction 2-stage ball bearing system provides consistent performance over the full working load range.High static and...
![Ronstan Series 30 Utility Block - Cheek, Curved Base [RF285]](https://cdn11.bigcommerce.com/s-ge8sirtax0/images/stencil/230x230/products/14653/18219/72300XL__16486.1677987633.jpg?c=1 "Ronstan Series 30 Utility Block - Cheek, Curved Base [RF285]")
Ronstan
Ronstan Series 30 Utility Block - Cheek, Curved Base [RF285]
Series 30 Utility Block- Cheek, Curved BaseFeatures:Lightweight durable constructionEconomicalMaintenance freeProduct Information:Stainless steel cheeks and Acetal sheaves ensure a long service life...
![Ronstan Series 30 Utility Block - Double, Tube Rivet [RF417]](https://cdn11.bigcommerce.com/s-ge8sirtax0/images/stencil/230x230/products/14652/18218/72299XL__38016.1677987631.jpg?c=1 "Ronstan Series 30 Utility Block - Double, Tube Rivet [RF417]")
Ronstan
Ronstan Series 30 Utility Block - Double, Tube Rivet [RF417]
Series 30 Utility Block- Double, Tube RivetFeatures:Lightweight durable constructionEconomicalMaintenance freeProduct Information:Stainless steel cheeks and Acetal sheaves ensure a long service life...
![Ronstan Series 30 Utility Block - Single, Becket, Loop Head [RF681]](https://cdn11.bigcommerce.com/s-ge8sirtax0/images/stencil/230x230/products/14647/18213/72293XL__35287.1677987619.jpg?c=1 "Ronstan Series 30 Utility Block - Single, Becket, Loop Head [RF681]")
Ronstan
Ronstan Series 30 Utility Block - Single, Becket, Loop Head [RF681]
Series 30 Utility Block - Single, Becket, Loop HeadFeatures:Lightweight durable constructionEconomicalMaintenance freeProduct Information:Stainless steel cheeks and Acetal sheaves ensure a long...
![Ronstan Series 15 Ball Bearing Utility Block - Exit Block [RF15711]](https://cdn11.bigcommerce.com/s-ge8sirtax0/images/stencil/230x230/products/14146/17572/71031XL__81545.1677986260.jpg?c=1 "Ronstan Series 15 Ball Bearing Utility Block - Exit Block [RF15711]")
Ronstan
Ronstan Series 15 Ball Bearing Utility Block - Exit Block [RF15711]
Series 15 Ball Bearing Utility Block - Exit BlockFeatures:Smallest and lightest ball bearing block availablePrecision molded acetal sheave running on stainless steel ball bearings provide high...