H16 lost shackle, what size shaft?

So, I'm missing the shackle at the very top of this pic. Part no h138. Attaches upper block of the main to the boom. Anybody know the shaft size? Heading to the hardware store in the morning to find something that will get me through the weekend. Don't wanna buy something too big.
http://sailsportmarine.com/images/categories/H16%20BLOCKS.jpeg

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Brad
Been sailing and racing a friends H16
Just bought N5.2
Lake Hefner, Oklahoma City
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Take the blocks with you to the hardware store.
H138 is 1/4" Stainless

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16' Prindle
Emerald Coast of Florida
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they have them @ lowes ~ 5$...stainless and all. i carry an extra or 2 on the boat with me just in case...

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Check out "Prindle Sailors" on Facebook!
bill harris
hattiesburg, mississippi
prindle 16- "BLUE RIBBON"
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HULLFLYERTake the blocks with you to the hardware store.

^^^^good advice.

Thanks guys. got her figured out.

Third day out sailing EVER today and flew a hull for the first time. . Was a semi stressfull day, lot of stuff going on at once, nearly pitchpoled but overall extremely successful day. Itchin' for more icon_biggrin

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Brad
Been sailing and racing a friends H16
Just bought N5.2
Lake Hefner, Oklahoma City
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pitchpoling is not so bad, just stay clear of the shrouds

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Kenneth Purdy
Hobie 16
Nacra 5.2 (2)
Banshee
First Coast, Florida
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