100 Pitch Chain

https://www.surpluscenter.com/item.asp?item=1-1163-100&catname=

Working strength of 3000 lb for 100 pitch roller chain - [1].

• Surpluscenter shows 24k lb tensile strength. Wikipedia says working load should be 1/6-1/9 of tensile strength.
• This implies 2700-4000 lb working load.
• This premier chain says 6500 lb working load. [2]

Specs

1.25" pictch

Sourcing

• $69 for 10 feet - [3]
• $120 at Surpluscenter. $400 for premier chain.