Servo Horn Screw Size?

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Old 04-24-2009, 06:58 AM
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Default Servo Horn Screw Size?

I hate the phillips head screws that hitec uses. What size screw do I need for the 59** and 79** series of servos to convert it over the hex head.
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Old 04-24-2009, 07:10 AM
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2.6 x 8mm
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Old 04-24-2009, 12:15 PM
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Originally Posted by BRENDAN LUGO View Post
2.6 x 8mm


where can yu find this screw??? i only see 2.5 screws, i cant find 2.6, why did they have to use such an uncommon screw size??
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Old 04-24-2009, 12:34 PM
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With an allen head I dont know where you would find it. Maybe micro fasteners?
The stock screws can be found in our screw package #55802.
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Old 04-24-2009, 08:40 PM
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i use this http://www.tonysscrews.com/product.s...&productId=396
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Old 04-25-2009, 06:21 AM
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Originally Posted by suryo88 View Post
That's the one I use and it's exactly the right screw.
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Old 04-27-2009, 07:47 AM
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found another source. Did not check on shipping costs.

http://www.hobbyetc.com/cgi-bin/item.cgi?part_id=57581
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Old 04-27-2009, 08:41 AM
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jr makes them, amain sells them.......the screws- http://www.amainhobbies.com/product_...ducts_id/26475

Last edited by comedyman809; 04-30-2009 at 05:19 AM.
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Old 04-29-2009, 07:52 PM
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In a pinch, they are the same size as the endbell screws you would find in an open endbell electric 540 motor... Useless information... UNTIL YOU'RE IN A PINCH!!!!!!!!
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Old 05-29-2009, 07:37 AM
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Originally Posted by l3asher View Post
I hate the phillips head screws that hitec uses. What size screw do I need for the 59** and 79** series of servos to convert it over the hex head.
HPI makes the exact screw that you need in a hex head. Z421 is the part number, 2.6mm x 8mm machine thread.
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Old 05-31-2009, 10:33 PM
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FYI

We have the 2.6 x ? hex heads in several different lengths (5,6,8,10,12,16mm).

Starting from $2.95 for a 12 pack. 50 or 100 packs even less per piece!

Last edited by 4C Hobby; 06-05-2009 at 04:29 PM.
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Old 06-04-2009, 10:52 PM
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Originally Posted by Billy T. View Post
HPI makes the exact screw that you need in a hex head. Z421 is the part number, 2.6mm x 8mm machine thread.
mcmaster-carr part number 91290A031, $9.53

i added a bag of 50 the last time i ordered something from them. probably overkill, but i'll never need to buy 2.6x8 screws again (until i lose them).
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Old 04-10-2010, 04:27 PM
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i had this same problem with my jr 9100's servos. the stock screw just backed out on its own. is there any other screws for the jr horn maybe thats not phillips? the only one that backed out is the front steering one with the aluminum horn.
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Old 01-27-2011, 07:26 AM
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The smaller hitec metal gear servos take a 2.25mm screw. I just tap them to 2.5mm. Too much of a pita to keep special 2.25 screws for a servo.
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