607441 Antal OPF 50 mm Swivel Block with 5 mm Shackle Antal 00501 Features:
•Antal's OPF Series is a "One Piece Frame" block without pins or screws
•It is a light and strong solution
•The one-piece aluminum extruded  

607442 Antal OPF 50 mm Simple Web Block Antal 00509 Features:
•Antal's OPF Series is a "One Piece Frame" block without pins or screws
•It is a light and strong solution
•The one-piece aluminum extruded  

607444 Antal OPF 60 mm Simple Web Block Antal 00609 Features:
•Antal's OPF Series is a "One Piece Frame" block without pins or screws
•It is a light and strong solution
•The one-piece aluminum extruded  

607443 Antal OPF 60 mm Swivel Block with 6 mm Shackle Antal 00601 Features:
•Antal's OPF Series is a "One Piece Frame" block without pins or screws
•It is a light and strong solution
•The one-piece aluminum extruded  

615654 Lewmar 30 mm Synchro Control Block Lewmar 29901321BK Features:
• Lightweight with unprecedented load bearing capability
• Ultimate efficiency and weight advantage
• Metal replacement technology
 

615656 Lewmar 30 mm Synchro Control Block Lewmar 29901341BK Features:
• Lightweight with unprecedented load bearing capability
• Ultimate efficiency and weight advantage
• Metal replacement technology
 

606443 Lewmar 30 mm Synchro Control Thru Deck Block Lewmar 29901361BK Ideal for use with handheld loads, Lewmar's Control Blocks feature lightweight, performance load-bearing capacity. MRT (Metal Replacement Technology) and a Stainless Steel central race and balls  

615642 Lewmar 40 mm Synchro Control Block Lewmar 29901421BK Features:
• Lightweight with unprecedented load bearing capability
• Ultimate efficiency and weight advantage
• Metal replacement technology
 

615644 Lewmar 40 mm Synchro Control Block Lewmar 29901441BK Features:
• Lightweight with unprecedented load bearing capability
• Ultimate efficiency and weight advantage
• Metal replacement technology
 

615331 Lewmar 50 mm HTX Block Lewmar 29195001 Features:
•Years of design and manufacturing experience, combined with collaboration with boat builders, designers and sailors, has resulted in the Lewmar HTX Hardware Range
 

615338 Lewmar 50 mm HTX Block Lewmar 29195021 Features:
•Years of design and manufacturing experience, combined with collaboration with boat builders, designers and sailors, has resulted in the Lewmar HTX Hardware Range
 

615601 Lewmar 50 mm Synchro Block Lewmar 29925001BK Features:
• Sychronized movement from rope to sail
• Scientifically optimized block geometry
• Revolutionary free-spin bearing and self-aligning head
 

615602 Lewmar 50 mm Synchro Block Lewmar 29925021BK Features:
• Sychronized movement from rope to sail
• Scientifically optimized block geometry
• Revolutionary free-spin bearing and self-aligning head
 

615343 Lewmar 60 mm HTX Block Lewmar 29196001 Features:
•Years of design and manufacturing experience, combined with collaboration with boat builders, designers and sailors, has resulted in the Lewmar HTX Hardware Range
 

615351 Lewmar 60 mm HTX Block Lewmar 29196021 Features:
•Years of design and manufacturing experience, combined with collaboration with boat builders, designers and sailors, has resulted in the Lewmar HTX Hardware Range
 

614579 Lewmar 60 mm SC Single Ratchet Block Lewmar 29901661BK Features:
• High performance
• Lightweight with unprecedented load bearing capability
• Ultimate efficiency and weight advantage
• Metal replacement  

615622 Lewmar 60 mm Synchro Block Lewmar 29926029BK Features:
• Sychronized movement from rope to sail
• Scientifically optimized block geometry
• Revolutionary free-spin bearing and self-aligning head
 

615611 Lewmar 60 mm Synchro Block Lewmar 29926001BK Features:
• Sychronized movement from rope to sail
• Scientifically optimized block geometry
• Revolutionary free-spin bearing and self-aligning head
 

615612 Lewmar 60 mm Synchro Block Lewmar 29926021BK Features:
• Sychronized movement from rope to sail
• Scientifically optimized block geometry
• Revolutionary free-spin bearing and self-aligning head
 

604408 Lewmar 72 mm HTX Block Lewmar 29197201 Features:
•Years of design and manufacturing experience, combined with collaboration with boat builders, designers and sailors, has resulted in the Lewmar HTX Hardware Range
 

604411 Lewmar 72 mm HTX Toggle Block Lewmar 29197221 Features:
•Years of design and manufacturing experience, combined with collaboration with boat builders, designers and sailors, has resulted in the Lewmar HTX Hardware Range
 

615623 Lewmar 72 mm Synchro Block Lewmar 29927201BK Features:
• Sychronized movement from rope to sail
• Scientifically optimized block geometry
• Revolutionary free-spin bearing and self-aligning  

615624 Lewmar 72 mm Synchro Block Lewmar 29927221BK Features:
• Sychronized movement from rope to sail
• Scientifically optimized block geometry
• Revolutionary free-spin bearing and self-aligning  

604415 Lewmar 90 mm HTX Block Lewmar 29199001 Features:
•Years of design and manufacturing experience, combined with collaboration with boat builders, designers and sailors, has resulted in the Lewmar HTX Hardware Range
 

615634 Lewmar 90 mm Synchro Block Lewmar 29929001BK Features:
• Lewmar synchro block are engineered for speed, efficiency and superior handling
• Lewmar uses a combination of scientifically optimized block geometry, a  

615635 Lewmar 90 mm Synchro Block Lewmar 29929021BK Specifications:
• Safe working load: 4400 lb (2000 kg)
• Weight: 14.57oz (414g)
• Maximum line size: 9/16" (14 mm)
 

615422 Ronstan Series 60 AP Block Ronstan RF66100 Features:
•Ronstan Series 60 Single AP Block
•All Purpose (AP) blocks are a great all around solution

•Self-lubricating Acetyl polymer sheaves running on  

603516 Ronstan 60 mm Series 60 Core Halyard Block Ronstan RF64108 Core Blocks are a true all round solution. A tuned 2-stage bearing system provides excellent performance across the full working load range with an integrated thrust bearing feature and the  

603519 Ronstan 60 mm Series 60 Core Foot Block Ronstan RF64151 Core Blocks are a true all round solution. A tuned 2-stage bearing system provides excellent performance across the full working load range with an integrated thrust bearing feature and the  

603517 Ronstan 60 mm Series 60 Core Mast Base Block Ronstan RF64108A Core Blocks are a true all round solution. A tuned 2-stage bearing system provides excellent performance across the full working load range with an integrated thrust bearing feature and the  

603513 Ronstan 60 mm Series 60 Core Block Ronstan RF64100 Core Blocks are a true all round solution. A tuned 2-stage bearing system provides excellent performance across the full working load range with an integrated thrust bearing feature and the  

603522 Ronstan 75 mm Series 75 Core Block Ronstan RF74100 Core Blocks are a true all round solution. A tuned 2-stage bearing system provides excellent performance across the full working load range with an integrated thrust bearing feature and the  

603527 Ronstan 75 mm Series 75 Core Foot Block Ronstan RF74151 Core Blocks are a true all round solution. A tuned 2-stage bearing system provides excellent performance across the full working load range with an integrated thrust bearing feature and the  

603526 Ronstan 75 mm Series 75 Core Mast Base Block Ronstan RF74108A Core Blocks are a true all round solution. A tuned 2-stage bearing system provides excellent performance across the full working load range with an integrated thrust bearing feature and the  

603525 Ronstan 75 mm Series 75 Core Halyard Block Ronstan RF74108 Core Blocks are a true all round solution. A tuned 2-stage bearing system provides excellent performance across the full working load range with an integrated thrust bearing feature and the  

600872 Ronstan 70 mm Series 70 Orbit Block Ronstan RF75151 Features:
•Ultra lightweight
•Low friction 2-stage Orbital ball bearing system
•Highest working load in its class
•Easily fitted and securely retained  

615222 Ronstan 40 mm Series 40 Orbit Block Ronstan RF45151 Features:
•Ultra Lightweight - is easily fitted and is retained securely
•Low friction 2-stage Orbital ball bearing system
•Highest working load in its class  

615236 Ronstan 40 mm Series 40 Orbit Cheek Block Ronstan RF46151 Ronstan Ratchet Orbit Blocks™ have the highest holding power available. The sophisticated NC-machined sheave features Generation 2 of our patented sheave cross-hole geometry. Its holding power  

614280 Ronstan 20 mm Series 20 Block Ronstan RF20101HL Features:
•Exceptionally high working loads
•Lightweight
•Suitable for both rope or wire
•Nylatron sheave
•Grade 316 stainless steel load strap and  

614295 Ronstan 20 mm Series 20 Block Ronstan RF20184 Features:
•Low friction
•High static and dynamic load capacity
•Lightweight
•Single point mounting
•Stainless steel ball bearings
 

600657 Ronstan 55 mm Series 55 Orbit Cheek Block Ronstan RF55151 Features:
Ultra Lightweight Low friction 2-stage Orbital ball bearing system Highest working load in its class Easily fitted and securely retained Dyneema Link head Low profile and compact  

600669 Ronstan 55 mm Series 55 Orbit Cheek Block Ronstan RF56151A Ronstan Ratchet Orbit Blocks™ have the highest holding power available. The sophisticated NC-machined sheave features Generation 2 of our patented sheave cross-hole geometry. Its holding power  

600668 Ronstan 55 mm Series 55 Orbit Cheek Block Ronstan RF56151 Ronstan Ratchet Orbit Blocks™ have the highest holding power available. The sophisticated NC-machined sheave features Generation 2 of our patented sheave cross-hole geometry. Its holding power  

608861 Ronstan Series 15 Ball Bearing Utility Block Ronstan RF15101 Features:
•Ronstan Series 15 blocks utilize stainless steel cheeks and precision molded Acetal sheave running on stainless steel ball bearings
•Provides high performance  

608862 Ronstan Series 15 Ball Bearing Utility Block Ronstan RF15111 Features:
•Ronstan Series 15 blocks utilize stainless steel cheeks and precision molded Acetal sheave running on stainless steel ball bearings
•Provides high performance  

608867 Ronstan Series 15 Ball Bearing Utility Block Ronstan RF15180 Features:
•Ronstan Series 15 blocks utilize stainless steel cheeks and precision molded Acetal sheave running on stainless steel ball bearings
•Provides high performance  

608860 Ronstan Series 15 Ball Bearing Utility Block Ronstan RF15100 Features:
•Ronstan Series 15 blocks utilize stainless steel cheeks and precision molded Acetal sheave running on stainless steel ball bearings
•Provides high performance  

614279 Ronstan 20 mm Series 20 Block Ronstan RF20101 Features:
•Low friction
•High static and dynamic load capacity
•Lightweight
•Stainless steel ball bearings
•UV stabilished Acetal  

614278 Ronstan 20 mm Series 20 Block Ronstan RF20100 Features:
•Low friction
•High static and dynamic load capacity
•Lightweight
•Stainless steel ball bearings
•UV stabilished Acetal  

613530 Ronstan 40 mm Series 40 Block Ronstan RF41100 Single, Universal Head
All purpose (AP) blocks are a great all around solution. Self-lubricating Acetal polymer sheaves running on polished stainless steel races perform equally well with dynamic  

613532 Ronstan Series 40 mm All-Purpose Single Block Ronstan RF41101
Ronstan Series 40 mm All-Purpose Single Block
All-purpose (AP) blocks are a great all around solution. Self-lubricating Acetal polymer sheaves running on polished stainless steel races  

602502 Ronstan 50 mm Series 50 Block Ronstan RF51100 Single, Universal Head
All purpose (AP) blocks are a great all around solution. Self-lubricating Acetal polymer sheaves running on polished stainless steel races perform equally well with  

602507 Ronstan 50 mm Series 50 Block Ronstan RF51200 Double,with Universal Non-Locking Swivel Head
All purpose (AP) blocks are a great all around solution. Self-lubricating Acetal polymer sheaves running on polished stainless steel races perform  

602503 Ronstan 50 mm Series 50 Block Ronstan RF51101 Single, Loop Head
All purpose (AP) blocks are a great all around solution. Self-lubricating Acetal polymer sheaves running on polished stainless steel races perform equally well with dynamic  

601103 Ronstan 55 mm Series 55 RT Orbit Ratchet Block Ronstan RF56100 Series 55 RT Orbit Block™, Single with auto & manual ratchet and swivel head
Features:
•Swivel shackle head for unlimited block rotation.
•Stainless steel  

615572 Harken 45 mm Aluminum Element Block Harken 6239 Features:
• Harken Element™ Blocks introduce side plates that combine forged aluminum and compound curves for strength
•Element's design pairs the minimum amount of  

615578 Harken 45 mm Aluminum Element Block Harken 6237 Features:
• Harken Element™ Blocks introduce side plates that combine forged aluminum and compound curves for strength
•Element's design pairs the minimum amount of  

615581 Harken 45 mm Aluminum Element Block Harken 6230 Features:
• Harken Element™ Blocks introduce side plates that combine forged aluminum and compound curves for strength
•Element's design pairs the minimum amount of  

608970 Harken 60 mm Aluminum Element Block Harken 6260 Features:
• Harken Element™ Blocks introduce side plates that combine forged aluminum and compound curves for strength
•Element's design pairs the minimum amount of  

609032 Harken 80 mm Aluminum Element Block Harken 6290 Features:
•Harken 80 mm Aluminum Element Block introduces sideplates that combine forged aluminum and compound curves for strength
•Sideplates are hardcoat-anodized to  

602214 Harken 18 mm T18 Soft Attach Block Harken 2698 A select group of racers put the Harken T18™ Block through its paces at the windy 2011 F18 North American Championships, installing the blocks in downhauls, outhauls, and other high-load  

606988 Harken 40 mm T2 Soft-Attach Ratchamatic Block Harken 2159 Features:
•The Harken 2159 T2 Ratchamatic features T2 Series styling and soft-attachment system
•The weight of this high-strength block is only a few ounces
 

606989 Harken 57 mm T2 Soft-Attach Ratchamatic Block Harken 2160 Features:
•The Harken 2160 T2 Ratchamatic features T2 Series styling and soft-attachment system
•The weight of this high-strength block is only a few ounces
 

615548 Harken 40 mm Single Block With T2 Soft-Attach Loop Harken 2148 The all-composite T2™ is the first block with no metal shackles or rivets to corrode and is the lightest soft-attach block Harken has ever designed. These blocks are also designed for Soft  

615549 Harken 57 mm Single Block With T2 Soft-Attach Loop Harken 2151 The all-composite T2™ is the first block with no metal shackles or rivets to corrode and is the lightest soft-attach block Harken has ever designed. These blocks are also designed for Soft  

615547 Harken 57 mm Single Block With T2 Soft-Attachment Harken 2152 The all-composite T2™ is the first block with no metal shackles or rivets to corrode and is the lightest soft-attach block Harken has ever designed. These blocks are also designed for Soft  

615546 Harken 40 mm Single Block With T2 Soft-Attachment Harken 2149 The all-composite T2™ is the first block with no metal shackles or rivets to corrode and is the lightest soft-attach block Harken has ever designed. These blocks are also designed for Soft  

615545 Harken 29 mm Single Block With T2 Soft-Attachment Harken 2146 The all-composite T2™ is the first block with no metal shackles or rivets to corrode and is the lightest soft-attach block Harken has ever designed. These blocks are also designed for Soft  

604670 Harken 57 mm (2.25") Block Harken 001 2.25" Block - Single
Features:
•Compact and lightweight
•Fast trip and release under high or low loads
•Perfect for dinghies, scows, beach cats and  

604858 Harken 22 mm Micro Block Harken 224 Micro Blocks - Single
Features:
•Compact and lightweight
•Ideal for sailboards, smaller dinghies and lightly loaded control lines on boats of all sizes
 

604868 Harken 22 mm Micro Block Harken 234 Micro Blocks - Single with Shackle
Features:
•Compact and lightweight
•Ideal for sailboards, smaller dinghies and lightly loaded control lines on boats of all  

604821 Harken 29 mm Bullet Block Harken 166 Features:
•The Harken 29 mm Single Swivel Bullet Block is compact and lightweight
•Fast trim and release under high or low loads
•Blocks adapt to almost all  

614627 Harken 29 mm Carbo Air Block Harken 340 29mm Carbo Air Block - Single with Swivel
Features:
•Lightweight, strong, reliable and affordable
•Safe and easy trimming
•Blocks are 30% lighter with a  

614635 Harken 29 mm Carbo Air Block Harken 348 29mm Carbo Air Block - Single Fixed
Features:
•Lightweight, strong, reliable and affordable
•Safe and easy trimming
•Blocks are 30% lighter with a  

605082 Harken 76 mm Mid-Range Hex ratchet Block Harken 1571 Features:
•Uniquely shaped ratchet sheave offers a gripping power of 15:1 at 180 degree of wrap
•Allows line to be eased instantly

Specifications:
 

605096 Harken 76 mm Midrange Block Harken 1586 Midrange Blocks - Single High-Load
Features:
•Robust construction, ideal for handling high loads on medium and large offshore boats
•Fast trim and release under any  

604823 Harken 38 mm Big Bullet Block Harken 168 Big Bullet Block - Single with Swivel
Features:
•Compact and lightweight
•Fast trim and release under high or low loads
•Blocks adapt to almost all control  

614924 Harken 40 mm Carbo Air Block Harken 2608 40mm Carbo Air Block - Ratchet
Features:
• Lightweight, strong and affordable
•Safe and easy trimming
•Blocks are 30% lighter with a  

614029 Harken 40 mm Carbo Air Block Harken 2636 40mm Carbo Air Block - Single with Swivel
Features:
•L ightweight, strong and affordable
•Safe and easy trimming
•Blocks are 30% lighter with a  

614039 Harken 40 mm Carbo Air Block Harken 2650 40mm Carbo Air Block - Single Fixed
Features:
•Lightweight, strong and affordable
•Safe and easy trimming
•Blocks are 30% lighter with a 60% higher working  

615078 Harken 57 mm Carbo Ratchet Air Block Harken 2135 57mm Carbo Air Block - Single Ratchet with Swivel
Features:
•Lightweight, strong, reliable and affordable
•Small, compact blocks
•High working loads for safe  

614041 Harken 57 mm Carbo Air Block Harken 2600 57mm Carbo Air Block - Single with Swivel
Features:
•Lightweight, strong and affordable
•Safe and easy trimming
•Blocks are 30% lighter with a  

615086 Harken 75 mm Carbo Air Block Harken 2670 75mm Carbo Air Block - Single Ratchet with Swivel
Features:
•Lightweight, strong, reliable and affordable
•Safe and easy trimming
•Blocks are  

600037 Harken 75 mm Carbo Air Block Harken 2660 75mm Carbo Air Block - Single with Swivel
Features:
•Lightweight, strong and affordable
•Safe and easy trimming
•Blocks are 30% lighter with a  

605063 Harken 76 mm Midrange Block Harken 1542 Midrange Blocks - Single Aluminum Sheave
Features:
•Robust construction, ideal for handling high loads on medium and large offshore boats
•Fast trim and release under  

605061 Harken 76 mm Midrange Block Harken 1540 Midrange Blocks - Single
Features:
•Robust construction, ideal for handling high loads on medium and large offshore boats
•Fast trim and release under any load
 

604765 Harken 38 mm Big Bullet Block Harken 125 Big Bullet Block - Single
Features:
•Compact and lightweight
•Fast trim and release under high or low loads
•Blocks adapt to almost all control line  

604796 Harken 38 mm Big Bullet Block Harken 146 Big Bullet Block - Single with Shackle
Features:
•Compact and lightweight
•Fast trim and release under high or low loads
•Blocks adapt to almost all control  

604734 Harken 29 mm Bullet Block Harken 082 Bullet Block - Single
Features:
•Compact and lightweight
•Fast trim and release under high or low loads
• Blocks adapt to almost all control line applications  

600861 Harken 57 mm Stainless Cruising ESP Block Harken 6076 57mm Stainless Steel Cruising ESP Block - Single Foot
Features:
•Sheaves feature sleeve bearings to handle high static loads
•Ideal for halyards or limited purchased  

600861D Harken 57 mm Stainless Cruising ESP Block Harken 6076 CUSTOMER RETURN NOT IN ORIGINAL PACKAGE AND SOME MINOR SCRATCHES WHICH APPEAR TO BE FROM SHIPPING
57mm Stainless Steel Cruising ESP Block - Single Foot
Features:
•Sheaves  

600858 Harken 75 mm Stainless Cruising ESP Block Harken 6074 75mm Stainless Steel Cruising ESP Block - Single Foot with Lock off
Features:
•Sheaves feature sleeve bearings to handle high static loads
•Ideal for halyards or  

602983 Schaefer 5 Series Block Schaefer 50605 Schaefer 5 Series Blocks are strong, smooth and reliable. They are perfect for medium sized cruising and racing yachts and in combination with larger series blocks on bigger yachts.  

614205 Schaefer 3 Series Block Schaefer 0305 Schaefer 3 Series Blocks are perfect for small cruisers, daysailers and high performance racing dinghies. The quality metal construction can take the punishment associated with running rigging  

603167 Schaefer 7 Series Block Schaefer 70505 Schaefer Series 7 Blocks offer medium sized cruising and racing yachts a winning combination of strength and performance. The robust yet lightweight construction produces an exceptionally strong  

602730 Schaefer 3 Series Block Schaefer 30305 Schaefer 3 Series Blocks are perfect for small cruisers, daysailers and high performance racing dinghies. The quality metal construction can take the punishment associated with running rigging  

602578 Schaefer 8 Series Block Schaefer 0805UC Schaefer 8 Series Stainless Steel Blocks add strength and beauty to your boat. They provide smooth and reliable operation under the toughest conditions.
Features:
• 3-Way head  

603133 Schaefer 7 Series Block Schaefer 70405 Schaefer Series 7 Blocks offer medium sized cruising and racing yachts a winning combination of strength and performance. The robust yet lightweight construction produces an exceptionally strong  

603136 Schaefer 7 Series Block Schaefer 70409 Schaefer Series 7 Blocks offer medium sized cruising and racing yachts a winning combination of strength and performance. The robust yet lightweight construction produces an exceptionally strong  

602926 Schaefer 5 Series Block Schaefer 50409 Schaefer 5 Series Blocks are strong, smooth and reliable. They are perfect for medium sized cruising and racing yachts and in combination with larger series blocks on bigger yachts.  

602923 Schaefer 5 Series Block Schaefer 50405 Schaefer 5 Series Blocks are strong, smooth and reliable. They are perfect for medium sized cruising and racing yachts and in combination with larger series blocks on bigger yachts.  

602577 Schaefer 8 Series Block Schaefer 0805 Schaefer 8 Series Stainless Steel Blocks add strength and beauty to your boat. They provide smooth and reliable operation under the toughest conditions.
Features:
• 3-Way head  

602729 Schaefer 3 Series Block Schaefer 30303 Schaefer 3 Series Blocks are perfect for small cruisers, daysailers and high performance racing dinghies. The quality metal construction can take the punishment associated with running rigging  

602959 Schaefer 5 Series Block Schaefer 50505 Schaefer 5 Series Blocks are strong, smooth and reliable. They are perfect for medium sized cruising and racing yachts and in combination with larger series blocks on bigger yachts.  

602712 Schaefer 3 Series Block Schaefer 30002 Schaefer 3 Series Blocks are perfect for small cruisers, daysailers and high performance racing dinghies. The quality metal construction can take the punishment associated with running rigging