Description
Stand-up bases allow a wide variety of blocks to be held upright, swivel freely, or pivot so lines have a fairlead under load. Use the 1634 stand-up base with Midrange blocks and 57 mm or 75 mm Cruising ESP blocks. Block headpost fits into socket without shackle.
Height (mm)49 mm
Height (in)1 15/16 in
Weight (g)255 g
Weight (oz)9 oz
Base Ø(mm)73 mm
Base Ø(in)2 7/8 in
Inside socket Ø(in) 9/16 in
Inside socket Ø(mm)15 mm
Pin Ø(mm)8 mm
Pin Ø(in)5/16 in
Fasteners (mm)6 RH mm
Fasteners (in)1/4 RH in
Maximum working load (kg)1588 kg
Maximum working load (lb)3500 lb
Breaking load (kg)3175 kg
Breaking load (lb)7000 lb
Use with blocksMidrange/Cruising ESP
Height (in)1 15/16 in
Weight (g)255 g
Weight (oz)9 oz
Base Ø(mm)73 mm
Base Ø(in)2 7/8 in
Inside socket Ø(in) 9/16 in
Inside socket Ø(mm)15 mm
Pin Ø(mm)8 mm
Pin Ø(in)5/16 in
Fasteners (mm)6 RH mm
Fasteners (in)1/4 RH in
Maximum working load (kg)1588 kg
Maximum working load (lb)3500 lb
Breaking load (kg)3175 kg
Breaking load (lb)7000 lb
Use with blocksMidrange/Cruising ESP
Product Details
We usually dispatch within 2–8 days.
In a hurry? If the item’s in stock, we might be able to send it out the same day — just let us know.
Not the Right Fit? We’ve Got You.
If your boating gear isn’t quite right — in size, fit, or feel — you can return it within 30 days for a full refund or exchange. No stress, no risk.