Need Help Finding Bolts

Fastenal

Not Fastenal or McMaster Carr Been there they have 3/4 X 10

McMaster Carr

oops

you can try speciality hardware mfg's like:

www.huronauto.com

Have you looked for turnbuckle hardware? A source like that might have something you can use.

Yeah I have, problem is that they are not grade 8

This place stocks 10 tpi, advertises they make any size to order, doesn't look cheap though:

http://www.mutualscrew.com/Left-Hand-Fasteners/left-hand-grade-8-tap-bolts-full-thread-11074.html?gclid=CJTj36_GrboCFQSk4AoddW0Agg

Who specified something that is unobtainable?

Try a fastener specialist. In Canton, OH, there is Ziegler's, sometimes jokingly called the nut house.

Have you tried

http://www.thomasnet.com/products/lefthand-screws-72660350-1.html

?

Not really a common size. You will likely end up paying quite a bit for them, so, try your local machine shop. If I recall, if you really need Gr 8 strength, 4140 steel, heat treated after machining should give you that strength.

Yeah thats kinda where Im headed, Have Lathes and material and have access to heat treating oven, It would be easier to just buy them but not having any luck.

Thanks

Try these guys, I believe they can make you anything, if you want them to.

http://timberlinefasteners.com/contact/

Check with a lawn-mower repair shop. Our tow behind mower uses 3/4-16x2 LH gr.8 bolts for mounting the blades. They may have other sizes available for blade/pulley mounting.

I once worked for Fastenal, they may not have them in stock sitting on their shelf but they can get any fastener, any pitch, any grade or have them made if needed. Like any supply house, they are driven by profit margins and gross sales. It's just not worth their time to order a few but if you say you'll order 10 and pay $5.00 each they will deliver them to your house.

A local machine shop ( jobber - not CNC production) might hook you up for less hassle.