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Item #:
24132031
Schaefer Series 5 Flat Base/Alum Cheek/Delrin Sheave
Item #:
24132031
WST 347
Price Details
Excluding Shipping & Custom charges ( Shipping and custom charges will be calculated on checkout )
*All items will import from US
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Imported from USA store
QTY:
Order now and get it around Monday, September 07
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Blocks are made from 316 stainless steel and hard coat anodized 6061-T6 aluminum alloy while the sheaves are made of UV protected Delrin.
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Note: Step Down Voltage Transformer required for using electronics products of US store (110-120). Recommended power converters Buy Now.
Product Details
| Size | One Size |
| Item Dimensions | 5 x 4 x 1 inches (12.7 x 10.2 x 2.5 cm) |
| Item Weight | 6.4 ounces (181.44 grams) |
| Material Type | Plastic |
| Color | No Color |
| Brand Name | Schaefer |
| UPC | 740507011634 |
| Global Trade Identification Number | 00740507011634 |
| Number of Items | 1 |
| Part Number | 504-11 |
| Model | 504-11 |
| Manufacturer | Schaefer Marine |
| Item Type Name | Great Product |
| Unit Count | 1.0 Count |
| Included Components | Great Product |
Product Description
Schaefer Series 5 Flat Base/Alum Cheek/Delrin Sheave
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Customer Questions & Answers
-
Question:
What materials are used in Schaefer blocks?
Answer: Schaefer blocks are made from 316 stainless steel, hard coat anodized 6061-T6 aluminum alloy, and UV protected Delrin sheaves. -
Question:
What is the safe working load of these blocks?
Answer: The safe working load of Schaefer blocks is 1750lb (795kg). -
Question:
Can these blocks be used on both spars and deck?
Answer: Yes, Schaefer blocks can be used on spars and deck to lead various controls. -
Question:
What is the maximum size rope with a spliced loop that could fit through the block?
Answer: The max size would be 3/8 inch, but it would not fit the spliced loop. -
Question:
What is the maximum size rope that will fit through the block? What is the size of the sheave?
Answer: The maximum line size is 7/16 inch, and the sheave size is 2 inches. -
Question:
What size rivets are needed for this?
Answer: For the install, you would need 1/4 inch bolts, washers, and nuts with a backing plate. If using rivets, 1/4 inch size can be used, but consider the load factor.
Schaefer Sheaves Editorial Review
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Pros
- Exceptional quality and durability
- Easy to use and operate
- Stylish and modern design
- Highly rated by satisfied customers
- Excellent customer support
Cons
- Slightly heavier than expected.
Platform Trust & Buyer Confidence
MA
Mohammad
Verified buyer
“Excellent quality and original too,when ubuy send original things I will appreciate that ,I very satisfied thank you”
23 July 2026 · via Trustpilot
CK
Chitra
Verified buyer
“The order and delivery progress was communicated very well. Package arrived within the estimated time. Products arrived as expected in good condition.”
22-Jul-26 · via Trustpilot
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kund
Verified buyer
“Good supply of products. Safe payment methods, and shipment worldwide! Genuine products.”
23-Jul-26 · via Trustpilot
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Onesi
Verified buyer
“Was my first time buying a product from Ubuy, but I found it so helpful. This is reliable. Gonna place a new order!”
22 July 2026 · via Trustpilot
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SAO JOHN
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“Ubuy is a great online platform to buy stuff. Reliable, fast delivery time and great value for money. I've been using Ubuy online shopping platform for three years now and will continue to do so.”
23 July 2026 · via Trustpilot
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Important information
- Limitations : For products shipped internationally, please note that any manufacturer warranty may not be valid; manufacturer service options may not be available; product manuals, instructions, and safety warnings may not be in destination country languages; the products (and accompanying materials) may not be designed in accordance with destination country standards, specifications, and labeling requirements; and the products may not conform to destination country voltage and other electrical standards (requiring use of an adapter or converter if appropriate). The recipient is responsible for assuring that the product can be lawfully imported to the destination country. When ordering from Ubuy or its affiliates, the recipient is the importer of record and must comply with all laws and regulations of the destination country.
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WST 347
Order now and get it around Monday, September 07
This item is not restrict in my country.(Please click on above link if this item is not restrict in your country, So our team will review and allow.)
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PCI DSS compliant and ISO 27001:2022 certified, with encrypted payments and full buyer protection on every order.
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Fastest cross-border delivery
Features & Benefits
- Manufactured in the USA since 1966.
- Legendary strength and durability.
- Constructed with premium materials: 316 stainless steel and anodized aluminum.
- UV protected Delrin sheaves for enhanced longevity.
- Ideal for leading sheets, halyards, and other controls.
- Safe working load of 1750lb (795kg) ensures reliability.
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