5/16" (8mm) Ronstan Single, Becket, Tube Rivet Head Utility Block

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  • Lightweight durable construction
  • Economical
  • Maintenance free

316 Stainless steel cheeks and UV stabilised Acetal sheaves ensure a long service life with virtually no maintenance. Hollow rivets accept fixing screws, shackles or can be used as a becket for extra purchase.

Used for:

Vang, cunningham and trapeze retriever systems on dinghies

Leech line tackles, bunk adjusters etc on larger yachts

Reference Imperial Metric
Sheave Ø 1 1/8 in.  29 mm 
 Max. Rope Ø  5/16 in. 8 mm
M.W.L. 660 lb. 300 kg
B. L. 1320 lb. 600 kg
Weight 1.2 oz. 35 g
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