Click or scroll to zoom
Tap or pinch to zoom
![Ronstan Nylatron Sheave Box - Single Upright Lead Block [RF453]](http://cemarine.com/cdn/shop/products/55219XL_700x700.jpg?v=1547930485)
![Ronstan Nylatron Sheave Box - Single Upright Lead Block [RF453]](http://cemarine.com/cdn/shop/products/55219XL_1000x1000.jpg?v=1547930485)
Ronstan Nylatron Sheave Box - Single Upright Lead Block [RF453]
by Ronstan
Save 15%
$34.39
$29.23
SKU 55219
Manufacturer Part Number: RF453
UPC #: 9316800000425
Category: Blocks
Manufacturer Part Number: RF453
UPC #: 9316800000425
Category: Blocks
Nylatron Sheave Box - Single Upright Lead Block
Lead blocks are a low profile solution for leading halyards or other rig sail controls back to cleats or jammers.When mounted in an inverted position, are frequently used as upright leads.
Features:
The external tabs can be formed to fit the spar profile before fastening
Applications:
Typically used in dinghy spars for control lines such as outhauls
Materials:
- Nylatron® sheave
- Grade 316 stainless steel load housing
Specifications:
Sheave Ø:t22mm(7/8")
Max. Rope Ø:t3mm(1/8")
Max. Cable Ø:t3mm(1/8")
Fastener Ø:t5mm(3/16")
M.W.L.:t160kg(350lbs)
B. L.:t350kg(700lbs)
Weight:t30g(1.1oz)
![C. Shreman Johnson Jaw/Jaw Tubular Turnbuckle - Short [04-110S]](http://cemarine.com/cdn/shop/products/71538XL_512x512.jpg?v=1576633918)
![Robline Waxed Whipping Twine - 1.0mm x 46M - White [TY-10WSP]](http://cemarine.com/cdn/shop/products/55400XL_512x512.jpg?v=1547931655)
![C. Sherman Johnson Jaw/Jaw Tubular Turnbuckle T-Style 3/8-24 Thread [06-110]](http://cemarine.com/cdn/shop/products/71540XL_512x512.jpg?v=1576633919)
![C. Sherman Johnson Jaw/Jaw Tubular Turnbuckle T Toggle [04-110]](http://cemarine.com/cdn/shop/products/71537XL_512x512.jpg?v=1576633918)
![Ronstan Tell Tails - Set of 3 Pairs [RF4025]](http://cemarine.com/cdn/shop/products/55199XL_512x512.jpg?v=1547930358)