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Blocks

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Blocks

Shop our complete selection of Blocks at High Tide Supply — your trusted source for outfitting your boat with quality marine gear. We carry premium blocks from Harken, Ronstan, and Antal, hand-selected by our marine electronics specialists for performance and reliability.

All products are sold new with full manufacturer support. High Tide Supply offers fast US shipping, competitive pricing, and expert pre-sale support to help you choose the right blocks for your vessel. Questions? Call us at (727) 201-2479 or browse our full catalog below.

241 products
Ronstan Series 40 Orbit BB Sheave RF48000 Sale
Ronstan Series 40 Orbit BB Sheave [RF48000]
$26.72 $22.71
Ronstan Series 40 Orbit RT Block wQuin Becket Cleat Swivel RF46530 Sale
Ronstan Series 40 Orbit RT Block w/Quin, Becket, Cleat Swivel [RF46530]
$684.37 $581.71
Wichard Soft Snatch Block 16mm Rope Size 36030W Sale
Wichard Soft Snatch Block - 16mm Rope Size [36030W]
$1,019.33 $866.43
Wichard Soft Snatch Block 12mm Rope Size 36020W Sale
Wichard Soft Snatch Block - 12mm Rope Size [36020W]
$687.69 $584.54
Wichard Soft Snatch Block 10mm Rope Size 36010W Sale
Wichard Soft Snatch Block - 10mm Rope Size [36010W]
$539.25 $458.36
Harken 57mm Aluminum Low Load Black Magic Block wSwivel 3226 Sale
Harken 57mm Aluminum Low Load Black Magic Block w/Swivel [3226]
$241.00 $211.95
Harken 60mm Element Triple Block 6275
Harken 60mm Element Triple Block [6275]
$255.25
Harken 57mm Carbo Block Flip Flop wCam 2143 Sale
Harken 57mm Carbo Block Flip Flop w/Cam [2143]
$364.50 $320.95
Schaefer Twin Sheet Lead 25x3MM Black 3277
Schaefer Twin Sheet Lead 25x3MM - Black [32-77]
$410.10
Harken 57mm Triple Carbo Block Swivel Becket Cam Cleat 2141 Sale
Harken 57mm Triple Carbo Block - Swivel, Becket, Cam Cleat [2141]
$330.50 $290.95
Harken 57mm Carbo Quad Block Swivel 2631 Sale
Harken 57mm Carbo Quad Block - Swivel [2631]
$242.85 $213.95
Harken 57mm Quad Block Swivel Center Becket HSB380
Harken 57mm Quad Block Swivel, Center Becket [HSB380]
$244.45
Harken Midrange Single wAluminum Sheave Block 1542 Sale
Harken Midrange Single w/Aluminum Sheave Block [1542]
$217.95 $191.95
Harken Midrange Single Block 1540 Sale
Harken Midrange Single Block [1540]
$162.95 $143.95
Harken Midrange Double Block 1544 Sale
Harken Midrange Double Block [1544]
$318.35 $279.95
Harken 60mm Element Stand Up Block 6277
Harken 60mm Element Stand Up Block [6277]
$220.15
Harken 80mm Element Stand Up Block 6280
Harken 80mm Element Stand Up Block [6280]
$336.35
Harken 80mm Single Element Block Mastbase wSwivel 6221
Harken 80mm Single Element Block Mastbase w/Swivel [6221]
$110.05
Harken 60mm Single Element Block Mastbase wSwivel 6220
Harken 60mm Single Element Block Mastbase w/Swivel [6220]
$62.90
Harken 38mm Double Big Bullet Block wBecket 128 Sale
Harken 38mm Double Big Bullet Block w/Becket [128]
$110.15 $96.95
Harken 38mm Double Big Bullet Block 127 Sale
Harken 38mm Double Big Bullet Block [127]
$105.15 $92.95
Harken 38mm Single Big Bullet Block wBecket 126 Sale
Harken 38mm Single Big Bullet Block w/Becket [126]
$46.75 $40.95
Harken 38mm Single Big Bullet Block 125 Sale
Harken 38mm Single Big Bullet Block [125]
$41.90 $36.95
Harken 29mm Double Bullet Block wBecket 085 Sale
Harken 29mm Double Bullet Block w/Becket [085]
$67.15 $58.95