Allen 27mm Upstand Block

Allen single upstand block with stainless steel side mounts to fit to deck or flat surface.

• Sheave size 27mm
• 4x 5mm fixing holes 
• Hole distance alongside the block 25mm
• Hole distance across the block 32mm

To fully appreciate the difference of the Allen dynamic bearing range of blocks, take a closer look at the design, quality of materials and construction. From the patented high strength 316 stainless steel line friendly ultra strap, to the soft contours of the sheave and cheeks moulded from advanced engineering polymers, patented dynamic bearing technology featuring twin rows of 316 stainless steel ball bearings all held together with a meticulously designed 316 stainless steel jacket, Allen blocks claim to be the strongest and best available on the market.