Ronstan Series 20 Ball Bearing Upright Lead Block

Ronstan Series 20 Ball Bearing Upright Lead Block

$20.90 /
Subscription -

🚚 Usually Ships within 24 hours

Available for pickup
In stock at 3/28 Thurecht Parade · Usually ready in 24 hours

In stock at 3/28 Thurecht Parade

Ronstan Series 20 Ball Bearing Upright Lead Block

Available for pickup

3/28 Thurecht Parade

Usually ready in 24 hours

3/28 Thurecht Parade
Scarborough QLD 4020
Australia

The Ronstan RF20171 is a Series 20 ball bearing single upright lead block — a low-profile solution for leading halyards or other rig sail controls back to cleats or jammers. Typically used for halyards at the mast base.

Precision moulded UV-stabilised Acetal sheave running on Grade 316 stainless steel ball bearings delivers high performance and low friction. Grade 316 stainless steel load housing throughout.


Specifications:
- Type: Upright Lead Block
- Sheave Diameter: 20mm
- Maximum Rope Diameter: 6mm
- Breaking Load: 550kg
- Maximum Working Load: 250kg
- Fastener Diameter: 4mm (suits 2 x 4mm / 5/32" fasteners)
- Weight: 18g

Materials:
- Sheave: UV-stabilised Acetal
- Bearings: Grade 316 stainless steel ball bearings
- Load Housing: Grade 316 stainless steel

Item Code. RF20171

Why Shop With Us

Product Sourcing

We source hard-to-find boat parts from our trusted suppliers.

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Fast dispatch Australia-wide from our boat chandlery located in Brisbane.

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Click & Collect

Pick up from our store, metres from Scarborough boat ramp!

FAQs

Yes — our store is located in Scarborough, Queensland. Simply select the click and collect option at checkout and we’ll notify you as soon as your order is ready. Collection is available from 3/28 Thurecht Parade, Scarborough.

We offer standard and express shipping via Australia Post. For large or bulky items, shipping may need to be quoted separately, we’ll contact you with the best available option. View our shipping information for more details on pricing.

Our Request a Quote option is designed for special order items or products not currently listed online. It’s also available for large or bulky items where shipping needs to be calculated. Provide as much detail as possible and our team will source the item and get back to you with pricing.

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