$17.73$20.86per unit
1
Secure Checkout
Shipping Available
Returns Available
This item is currently out of stock.
Special order from Ronstan — Estimated 2–4 weeks.
Description
Single Lead Block - 19mm(3/4") Sheave Diameter
Lead blocks are a low profile solution for leading halyards or other rig sail controls back to cleats or jammers.
Applications:
Typically used in dinghy spars for control lines
Materials:
Sheave Ø: 19mm(3/4")
Max. Rope Ø: 8mm(5/16")
Fastener Ø: 5.0mm(3/16")
M.W.L.: 250kg(550lbs)
B. L.: 550kg(1,100lbs)
Weight: 20g(0.7oz)
Lead blocks are a low profile solution for leading halyards or other rig sail controls back to cleats or jammers.
Applications:
Typically used in dinghy spars for control lines
Materials:
- U.V. stabilized Acetal sheave
- Grade 316 stainless steel load housing
Sheave Ø: 19mm(3/4")
Max. Rope Ø: 8mm(5/16")
Fastener Ø: 5.0mm(3/16")
M.W.L.: 250kg(550lbs)
B. L.: 550kg(1,100lbs)
Weight: 20g(0.7oz)
Accessories
No accessories listed for this product.
Specifications
| SKU | RF917 |
| UPC | 9316800032556 |
| Brand | Ronstan |
| Category | Sailing |
| Country of Origin | ID |
| Weight | 0.1 |
| Dimensions | 4 x 2 x 1 |
| Status | Active |
| Last Synced | 10/7/2026, 2:04:26 AM |
Compliance & Shipping
Returnable
Product Literature
No literature or manuals available for this product.
Customer Reviews
0.0
0 reviews
5
0
4
0
3
0
2
0
1
0
Only customers who purchased this item can write a review.
No reviews yet. Purchased this item? Be the first to review it.
Frequently Bought Together
Compare Key Features
| Feature |  Ronstan Single Lead Block - 19mm (3/4") Sheave Diameter CURRENT |  Ronstan Series 30 Ball Bearing Orbit Block - Triple - Becket |  Harken 57mm Carbo Air Block w/Swivel |  Barton Marine Ratchet Block - 55mm |  Harken 16mm Block |
|---|---|---|---|---|---|
| Price | $17.73 | $57.81 | $53.93 | $111.66 | $17.21 |
| Brand | Ronstan | Ronstan | Harken | Barton Marine | Harken |
| Condition | New | New | New | New | New |
| Availability | Out of Stock | In Stock | In Stock | In Stock | In Stock |
| Weight | 0.1 | 0.19 | 0.3 | 0.3 | 0.1 |
| Dimensions | 4 x 2 x 1 | 4 x 2 x 2 | 6 x 3 x 1 | 6 x 3 x 2 | 3 x 2 x 1 |
| SKU | RF917 | RF35312 | 2600 | 90500 | 404 |
| Country | ID | INDONESIA | UNITED STATES | — | UNITED STATES |
| View Item | View Item | View Item | View Item | View Item |
You Might Also Need
C. Sherman Johnson
C. Sherman Johnson Closed Body Jaw to Swage Tubular Turnbuckle f/1/8" Wire
MPN: 26-412
$39.53
In Stock
More from Ronstan
View All
Related Products
Customers Also Viewed
Forespar Performance Products
Forespar 27"-48" Twist-Lock Steering Control Arm Fits 7/8"-1" Wheels
MPN: 104018
$152.42
In Stock
Wichard Marine
Wichard HR Quick Release Snap Shackle w/Large Bail - Length 4-3/4"
MPN: 2776W
$274.53
In Stock
Frequently Asked Questions
Price
$17.73