Skip to content

Worldwide shipping | Free shipping on orders over $145 Learn more

⚓1830 E Interstate 30 Hwy, Suite 300 · Rockwall, TX, 75087

Sailboat Hardware
View all Sailboat Hardware
Sailboat Hardware
Browse Hardware

Rudder Heads & Stocks
Swivel Shackles
View all Hardware

Sailing essentials
Sailboat Equipment
View all Sailboat Equipment
Sailboat Equipment
Browse Sailboat Equipment

View all Sailboat Equipment

Sailing essentials
Lines & Rigging
View all Lines & Rigging
Lines & Rigging
Browse Lines & Rigging

View all Lines & Rigging

Sailing essentials
One Design
View all One Design
One Design
Browse One Design

View all One Design

Sailing essentials
Sails
View all Sails
Sails
Browse Sails

Booms
View all Sails

Sailing essentials
Sailing Gear & Apparel
View all Sailing Gear & Apparel
Sailing Gear & Apparel
Browse Sailing Gear & Apparel

View all Sailing Gear & Apparel

Sailing essentials
Sailboat Care
View all Sailboat Care
Sailboat Care
Browse Sailboat Care

Adhesives & Sealants
Lubricants & Corrosion Protection
Repair Tools & Supplies
Cleaning, Polish & Wax
Marine Tapes & Deck Grip
View all Sailboat Care

Sailing essentials
Boats
View all Boats
- New Sailboats
  Devoti Sailing
  Mackay Boats
  Melges Boatworks
  Ovington Boats
  RS Sailboats
  Sunfish Sailboats
  Zim Sailing
- Pre-Owned Sailboats
Boats
Browse Boats

Pre-Owned Sailboats
View all Boats

Sailing essentials

877-240-8352

Search

Search Log in Cart

Home
Blocks Up to 30mm

Home
Blocks Up to 30mm

Blocks Up to 30mm

(54 products)

Single-sheave blocks grouped by sheave size up to 30 mm. Compare the exact sheave diameter, rope capacity, working load and attachment details in each listing when matching your rigging.

Sort by

Most relevant
Best selling
Alphabetically, A-Z
Alphabetically, Z-A
Price, low to high
Price, high to low
Date, old to new
Date, new to old

Compare

View as List Grid

Compare
Sale
Ronstan Sailboat Hardware
SKU: RONRF35109HL
Ronstan Series 30 High Load Lashing Orbit Block

Sale price $109.20 Regular price $125.95

View details
Compare

Sale

Ronstan Sailboat Hardware
SKU: RONRF35100
Ronstan Series 30 BB Orbit Block, Single, Swivel Shackle Head, Becket

Sale price $24.50 Regular price $28.30

View details
Compare

Sale

Allen Brothers
SKU: ALNA2030SHK
Allen Brothers 30mm Dynamic Swivel Block with Hook

Sale price $47.30 Regular price $49.60

View details
Compare

Sale

Ronstan Sailboat Hardware
SKU: RONRF35101
Ronstan Series 30 BB Orbit Block, Single, Lashing Head, Becket Option

Sale price $17.30 Regular price $19.90

View details
Compare

Sale

Selden
SKU: SEL402-201-04R
Selden Ball Bearing Block 25 Single, Loop

(1 reviews)

Sale price $28.99 Regular price $31.00

View details
Compare

Sale

Lewmar
SKU: LEW29901341BK
Lewmar 30mm Control Single Fixed Strap Block

Sale price $15.75 Regular price $30.95

View details
Compare

Sale

Ronstan Sailboat Hardware
SKU: RONRF28100
Ronstan Series 25 Ball Bearing Orbit Block Becket and Swivel Shackle

Sale price $23.90 Regular price $27.51

View details
Compare

Sale

Allen Brothers
SKU: ALNA4479
Allen Brothers 25mm Single with Shackle

Sale price $42.50 Regular price $44.62

View details
Compare
Sale
Allen Brothers
SKU: ALNA4379HK-90
Allen Brothers 25MM Single With 90 Degree Hook

Sale price $58.70 Regular price $61.62

View details
Compare

Sale

Allen Brothers
SKU: ALNA4265
Allen Brothers 25MM Plain Block Single V-Cleat

Sale price $23.60 Regular price $24.75

View details
Compare
Sale
Allen Brothers
SKU: ALNA2031
Allen Brothers 30MM Dynamic Single Multi Function

Sale price $17.30 Regular price $18.13

View details
Compare
Sale
Allen Brothers
SKU: ALNA2030SC
Allen Brothers 30mm Block w/Swivel

(1 reviews)

Sale price $48.30 Regular price $50.68

View details
Compare
Sale
Allen Brothers
SKU: ALNA2030
Allen Brothers 30MM Dynamic Single Fixed Eye

Sale price $19.10 Regular price $20.05

View details
Compare

Sale

Ronstan Sailboat Hardware
SKU: RONRF35100D
Ronstan Series 30 Orbit Block, Single, Swivel Shackle Head, Becket

Sale price $39.10 Regular price $45.10

View details
Compare

Sale

Ronstan Sailboat Hardware
SKU: RONRF30101HL
Ronstan Series 30 High Load Block, Loop Top

Sale price $28.20 Regular price $32.58

View details
Compare
Nautos
SKU: NAU92319
92319 Single Through Deck

Regular price $31.99

View details
Compare

Nautos
SKU: NAU92415
92415 Single Fixed Head with Becket

Regular price $25.99

View details
Compare
Nautos
SKU: NAU92431
92431 Single fixed for Mast Base 28mm

Regular price $26.99

View details
Compare
Nautos
SKU: NAUHT 2030T
Tie on block - 30mm Sheave - Ultralight - HT2030T

Regular price $33.99

View details
Compare

Sale

Allen Brothers
SKU: ALNA9031-873
Allen Brothers Tiitan Ilca Vang Block

Sale price $236.40 Regular price $248.00

View details
Compare
Sale
Allen Brothers
SKU: ALNA9030
Allen Brothers Tiitan Block

Sale price $228.80 Regular price $240.00

View details
Compare

Sale

Allen Brothers
SKU: ALNA2134
Allen Brothers 30mm Dynamic Upstand Block

Sale price $43.40 Regular price $45.53

View details
Compare
Sale
Allen Brothers
SKU: ALNA2131P
Allen Brothers 30mm Plain Bearing Single Through Deck Block

Sale price $34.00 Regular price $35.70

View details
Compare
Sale
Allen Brothers
SKU: ALNA2131HL
Allen Brothers 30mm Single Through Deck Block With Steel Sheave

Sale price $64.50 Regular price $67.62

View details
Compare
Sale
Allen Brothers
SKU: ALNA2131
Allen Brothers 30mm Allenite Through Deck

Sale price $38.70 Regular price $40.62

View details
Compare
Sale
Allen Brothers
SKU: ALNA4393
Allen Brothers 25mm Single Fixed Head With Becket

Sale price $37.80 Regular price $39.63

View details
Compare
Sale
Allen Brothers
SKU: ALNA4379HK
Allen Brothers 25MM Mini High Tension Block Single Hook

Sale price $58.70 Regular price $61.62

View details
Compare
Sale
Allen Brothers
SKU: ALNA4379
Allen Brothers 25mm Single Fixed Head

Sale price $33.50 Regular price $35.13

View details
Compare
Sale
Allen Brothers
SKU: ALNA4178E
Allen Brothers 25MM Plain Block Single Hook

Sale price $39.40 Regular price $41.37

View details
Compare

Sale

Allen Brothers
SKU: ALNA4178
Allen Brothers 25MM Plain Block Single Fixed

Sale price $9.60 Regular price $10.03

View details
Compare
Sale
Allen Brothers
SKU: ALNA2031SC
Allen Brothers 30mm Single With Swivel Fork

Sale price $36.60 Regular price $38.40

View details
Compare
Sale
Allen Brothers
SKU: ALNA2031F
Allen Brothers 30MM Dynamic Single With Fork

Sale price $25.30 Regular price $26.50

View details
Compare
Sale
Allen Brothers
SKU: ALNA.178-74
Allen Brothers 30MM Sheet Block Single With A.74

Sale price $11.10 Regular price $11.60

View details
Compare
Sale
Allen Brothers
SKU: ALNA.178
Allen Brothers 30mm Single Plain Bearing

Sale price $6.90 Regular price $7.25

View details
Compare
Sale
Allen Brothers
SKU: ALNA..93LZ
Allen Brothers Plain Bearing Single Sheave With Becket & Key

Sale price $21.10 Regular price $22.13

View details
Compare
Sale
Allen Brothers
SKU: ALNA..93
Allen Brothers 25mm Plain Bearing Single Sheave with Becket

Sale price $11.90 Regular price $12.47

View details
Compare

Sale

Schaefer
SKU: SCH200-05
Schaefer Single, Swivel Shackle, Ball Bearing

Sale price $117.09 Regular price $130.10

View details
Compare

Sale

Ronstan Sailboat Hardware
SKU: RONRF35101D
Ronstan Series 30 Orbit Block, Single & Becket, Fixed Head

Sale price $32.80 Regular price $37.79

View details
Compare

Sale

Ronstan Sailboat Hardware
SKU: RONRF35100A
Ronstan Series 30 BB Orbit Block, Single Slotted Head Post

Sale price $33.70 Regular price $38.88

View details
Compare

Sale

Ronstan Sailboat Hardware
SKU: RONRF34108
Ronstan Series 30 BB Block, Single Loop Top, Clevis Pin Top

Sale price $99.20 Regular price $114.45

View details
Compare

Sale

Ronstan Sailboat Hardware
SKU: RONRF30111
Ronstan Series 30 BB Block, Single Loop Top Becket

Sale price $37.30 Regular price $43.06

View details
Compare

Sale

Ronstan Sailboat Hardware
SKU: RONRF30110
Ronstan Series 30 BB Block, Single Becket

Sale price $51.80 Regular price $59.72

View details
Compare

Sale

Ronstan Sailboat Hardware
SKU: RONRF30101
Ronstan Series 30 Ball Bearing Block, Loop Top

Sale price $22.00 Regular price $25.40

View details
Compare

Sale

Ronstan Sailboat Hardware
SKU: RONRF30100HL
Ronstan Series 30 High Load Single Block with Swivel Shackle

Sale price $36.80 Regular price $42.49

View details
Compare

Sale

Ronstan Sailboat Hardware
SKU: RONRF30100
Ronstan Series 30 BB Single Block with Swivel Shackle

Sale price $32.50 Regular price $37.49

View details
Compare

Sale

Selden
SKU: SEL403-101-13R
Selden Ball Bearing Block 30 Single/Becket STripap

Sale price $26.18 Regular price $28.00

View details
Compare

Sale

Selden
SKU: SEL403-101-03R
Selden Ball Bearing Block 30 Single./Becket SWIV.

Sale price $38.34 Regular price $41.00

View details
Compare

Sale

Selden
SKU: SEL403-101-02R
Selden Ball Bearing Block 30 Single, STripap

Sale price $21.51 Regular price $23.00

View details
Compare

Sale

Selden
SKU: SEL403-101-01R
Selden Ball Bearing Block 30 Single, Swivel

Sale price $30.86 Regular price $33.00

View details
Compare

Sale

Selden
SKU: SEL402-201-07R
Selden Ball Bearing Block 25 Single/Becket Pin

Sale price $38.34 Regular price $41.00

View details

Showing 50 of 54

Your cart

Your cart is empty

Subtotal:$0.00 USD

Loading...

FOLLOW US

STAY TUNED WITH VELA!

Explore Our Latest Blog Posts!

JOIN OUR MAILING LIST

To keep up to date with our news, events...

Visit our support center

Expert help & advice
Check your order status

Updates & tracking
Returns & exchanges

All you need to know
Price-match guarantee

Our promise to you

TECHNICAL RESOURCES

Sailboat Rig Dimensions
Sailboat Lines Selector
Selection Guides
Sailing Glossary
Technical Advice
Technical Literature
Sailing Technical Videos
Stay Tuned with Vela

SHOP WITH US

About Us
Secure Shopping
How To Pay
Shipping & Delivery
We Ship Worldwide
Return and Exchange
Terms & Conditions
Privacy Policy
Price Matching
Our Brands

MY ACCOUNT

Sign In
Order Status
My Cart
My Wishlist
FAQs
Coupons & Offers
Sitemap
Contact Us

ORDER STATUS

Check the status of your order, cancellation and refunds.

orderprocessing@velasailingsupply.com

TECHNICAL SUPPORT

Technical support, verify availability and inquire.

tech@velasailingsupply.com

All prices are in USD | © 2026 Vela Sailing Supply, All rights reserved.

Compare /5

Loading...

Loading...

Choose options

Item added to your cart.

View cart