4mm bow shackle
Marine grade stainless steel 316 A4
Thickness of pin and shackle 4mm
Inside length of shackle 14mm
Inside width of shackle 14mm
Inside width of pin 8mm5mm

5mm bow shackle
Marine grade stainless steel 316 A4
Thickness of pin and shackle 5mm
Inside length of shackle 17mm
Inside width of shackle 17mm
Inside width of pin 10mm6mm
Marine grade stainless steel 316 A4

6mm bow shackle
Thickness of pin and shackle 6mm
Inside length of shackle 21mm
Inside width of shackle 21mm
Inside width of pin 12mm8mm
Marine grade stainless steel 316 A4

8mm bow shackle
Thickness of pin and shackle 8mm
Inside length of shackle 28mm
Inside width of shackle 28mm
Inside width of pin 16mm10mm
Marine grade stainless steel 316 A4

10mm bow shackle
Thickness of pin and shackle 10mm
Inside length of shackle 34mm
Inside width of shackle 34mm
Inside width of pin 20mm 

Why use A4 316 Stainless steel?

Grade 316 has a better resistance to chemicals and chlorides (like salt) than grade 304 stainless steel. When it comes to applications with chlorinated solutions or exposure to salt, grade 316 stainless steel is considered superior. Which makes it a good choice for high-saline environments (i.e., coastal regions and areas where de-icing is used) and industrial applications involving chemical processes. Grade 316 stainless steel is ideal for medical applications where high tensile strength is required or that involve regular exposure to corrosive elements like chemicals, water, or bodily fluids. The difference between 304 and 316 stainless steel is that 316 contains molybdenum, which enhances corrosion resistance, while 304 does not.