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Cox Engine of The Month
September-2023
balogh's

"Beefed up old stock 290 on my Quickie100 RC after plenty of airtime hours..."

PAST WINNERS
balogh's

"Beefed up old stock 290 on my Quickie100 RC after plenty of airtime hours..."

PAST WINNERS
5-40 nuts for using a prop-stud
Page 1 of 1
5-40 nuts for using a prop-stud
Hey all, Thought I'd throw this out there for anyone wanting to try them.
Running a 5-40 prop screw or "stud" all the way into the crank, is said to strengthen the front crank-housing in the event of a hard impact.
Some of us use long screws and cut them to size... so why not make a "stud" and secure your prop with a nut and washer? or a heavier "brass" nut/washer (tail heavy?)... or a "lock-nut" (no explanation needed...)
McMaster-Carr Co. carries 5-40 size hardware, for a variety of our uses.
STUDS
http://www.mcmaster.com/#standard-threaded-rods/=okay2i
LOCK-NUTS
http://www.mcmaster.com/#hex-locknuts/=okazsp
HEX NUTS
http://www.mcmaster.com/#hex-nuts/=okb0ao
WASHERS
http://www.mcmaster.com/#standard-flat-washers/=okb3kp
They also stock 5-40 hex head cap screws, as well as traditional slotted screws, in the lengths we typically need. (check out their selection of 2-56 screws too)
Running a 5-40 prop screw or "stud" all the way into the crank, is said to strengthen the front crank-housing in the event of a hard impact.
Some of us use long screws and cut them to size... so why not make a "stud" and secure your prop with a nut and washer? or a heavier "brass" nut/washer (tail heavy?)... or a "lock-nut" (no explanation needed...)
McMaster-Carr Co. carries 5-40 size hardware, for a variety of our uses.
STUDS
http://www.mcmaster.com/#standard-threaded-rods/=okay2i
LOCK-NUTS
http://www.mcmaster.com/#hex-locknuts/=okazsp
HEX NUTS
http://www.mcmaster.com/#hex-nuts/=okb0ao
WASHERS
http://www.mcmaster.com/#standard-flat-washers/=okb3kp
They also stock 5-40 hex head cap screws, as well as traditional slotted screws, in the lengths we typically need. (check out their selection of 2-56 screws too)

» Norvel/AP .061 prop stud size compared to 5-40 stud
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» Wanted: Prop Nut and Stud .049
» Help fixing model with very wrong CG
» MY FIRST PROP ROD !!! AT age 57
» [The Traveling Prop] Who wants to be the one to send the prop overseas?
Page 1 of 1
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