Ronstan Series 50 SP Single Utility Block (with Nylatron Sheave) - Universal Head Navigation Chart Padeye & snap shackle: Grade

Padeye & snap shackle: Grade 15-5PH stainless steel

Fills minor surface irregularities

For more specific application guidance

Carbon Fiber Stealth Weave

Let application soak in for 30 seconds before using a clean cloth

Ronstan Series 50 SP Single Utility Block (with Nylatron Sheave) - Universal Head Navigation Chart Padeye & snap shackle: GradeRonstan Series 50 Special Purpose Single Utility Block (with Nylatron Sheave), Universal Head RF50100HL Exceptionally high working loads Lightweight Cheek cut outs for easy bearing maintenance Suitable for both rope or wire Captive Lock universal head Slotted pin shackle eliminates fouled lines Applications Mainsheet Spinnaker sheets Halyards and other primary applications on boats up to 10 m (33 ft) Materials Nylatron sheave Grade 316 stainless steel