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njba tech question

  1. #1
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    Default njba tech question

    What grade bolts are required for the loader. I think they need to be 5/16 Black Oxide. Does any of the other underwater hardware need these also like my shoe or ride plate. Thanks hope to make the season opener at Lake Elsinore
    Last edited by Sinbad; 02-09-2009 at 09:49 PM.

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    Default Grate bolts

    The Rules only state that the bolts must be drilled through, and fastened with nuts (preferably nylocks) inside the boat.

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    I'm No Expert Shaun's Avatar
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    Quote Originally Posted by J. Shelfo Sr. View Post
    The Rules only state that the bolts must be drilled through, and fastened with nuts (preferably nylocks) inside the boat.
    Only two have to be drilled through right? 5/16 sounds right to me, not sure if it's a rule but i know from a safety standpoint they should be larger than what they where stock.

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    About 500' AGL MudPumper's Avatar
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    Quote Originally Posted by Sinbad View Post
    What grade bolts are required for the loader. I think they need to be 5/16 Black Oxide. Does any of the other underwater hardware need these also like my shoe or ride plate. Thanks hope to make the season opener at Castaic.

    Castaic?????

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    Senior Member Boat 405's Avatar
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    Quote Originally Posted by Shaun View Post
    Only two have to be drilled through right? 5/16 sounds right to me, not sure if it's a rule but i know from a safety standpoint they should be larger than what they where stock.
    Rule book doesn't say two just says bolts must be thru bolted. Besides I see no reason not to do all four.

    Think about how much force is being applied to that loader at 100mph...... put it this way what do you think would happen if you tried to put your finger in the water at 100mph... it would probably rip your skin off.
    Last edited by Boat 405; 02-09-2009 at 08:41 PM.

  8. #6
    Senior Member blownjet's Avatar
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    Quote Originally Posted by Shaun View Post
    Only two have to be drilled through right? 5/16 sounds right to me, not sure if it's a rule but i know from a safety standpoint they should be larger than what they where stock.
    I WAS TOLD LAST SEASON NOT ENOUGH THREAD SHOWING!! HAD STAINLESS BOLTS WITH NYLOCKS, BROKE A FEW HEADS SO CHANGED TO BLACK OXIDE WITH 1/4'' OF THREAD SHOWING

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    Member blownjet417's Avatar
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    Its Good I Upgraded Too Since I Am Going To Psi Blower So I Can Defend My Championship In Bgj Too.

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    Senior Member moneysucker's Avatar
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    It may be IHBA rule but one of them states that the bolts are not to be SS. Also I believe the building code rule of 3 threads showing beyond the nut is what they want to see.

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    Vinyl Graphics, Magnetic signs, Reg #s, Boat names, Banners, Boat decals, Etc. Please contact me Via facebook or e-mail [email protected].

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    Senior Member blownjet's Avatar
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    Quote Originally Posted by blownjet417 View Post
    Its Good I Upgraded Too Since I Am Going To Psi Blower So I Can Defend My Championship In Bgj Too.
    HEY ROBERT, JUST BARELY HAVE THE $$$ FOR THE FIRST RACE LET ALONE A PSI BLOWER

  12. #10
    Precision Craft Marine
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    You should bolt through with all 4, and use a grade 8 bolt. Change them once a year, along with the nyloc nuts, and you should be just fine, and legal. Bolts are cheap, Hospitals are expensive.

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    Default thanks all

    Thanks for all the help guys. Im am through bolted but there stainless so well have to find some new allen 5/16 x 1 1/2 countersunk bolts. Joe any chance you carry these. The boat is Das Boot Rathke's old ride. Again thanks.

  14. #12
    Precision Craft Marine
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    Yes ,I do have them.

  15. #13
    Boat Nut sleekcrafter's Avatar
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    Default black oxide bolts

    Thru drill the loader bolts, take out the thread on the intake. Unless you change your hardware every time you run the boat it will rust , and seize the threads.

  16. #14
    Senior Member bp298's Avatar
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    Quote Originally Posted by Sinbad View Post
    Thanks for all the help guys. Im am through bolted but there stainless so well have to find some new allen 5/16 x 1 1/2 countersunk bolts. Joe any chance you carry these. The boat is Das Boot Rathke's old ride. Again thanks.
    hey bill, good to hear you're going to run that thing again.

    5/16 black oxide machine screws are preferred over stainless because of the load. the oxide screws will stretch, while stainless doesn't stretch too well, and just break from fatigue. routinely check to see if any of the screws have loosened due to stretch, replace 'em. i replace mine a couple times a year...

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