Hello. I need to repair a bolt hole for a grade 8 bolt, 5/16 x 18 threads per inch. Is this the correct helicoil? Thank you.
150575
It is the correct diameter and pitch. As for strength relating to grade 8 , see the following: From the Helicoil web site: HeliCoil Inserts or Wire Thread Inserts are made of cold rolled 18-8 grade Stainless Steel to AS7245 , MIL-I-8846 & DTD734 specifications. This wire is cold rolled to a diamond cross section producing an ultimate tensile strength of approximately 1375-1725 MPa, mirror like surface finish of 2-4 Microns and flank hardness of RC 43-50 which is far in excess of the usual tapped materials and best suited for most of the industrial needs. HeliCoil Inserts can also be supplied in other materials such as SS-316, Inconel X-750, Titanium Alloys, Nimonic 90, Nitronic 60, Phosphorus Bronze, Beryllium Copper and with special coating and plating requirements such as Cadmium plating, Silver plating, Zinc plating, Nickel plating and dry film lubricants, Anti- Corrosion/ Salt spray resistant coatings. In my experience the helicoil is especially useful in repairing threads in mild steel and even more so in aluminum. In aluminum I believe it's superior to the original threading.
150576
I have been a Millwreght for most of my life and repaired many stripped threads. A heilcoil repair is a lot stronger than original threads.If used in a corrosive situation a stainless hecoil should be used. use proper size drill and keep hole straight as when taping keep tap straightand repair should last forever.
150577
The Helicoil you asked about is right for the size bolt you are using. You need to redrill the hole to 21/64". Use drill press if you can. As to the grade specs Helicoil would be the best place to go.
150578
5/16 x 18 should work for you. the pitch of 18 works for plain head, grade 5, or grade 8.
529238
Take the bolts and nuts to any ACE or True Value Hardware stores. The folks there should be able to find equivalent sizes (if not identical threading) to replace the stock hardware with longer versions. Go with stainless steel if you can find it -- the few bucks extra will be worth it once you see how quick regular steel hardware can rust (and forced to replace it over and over). Cheers and all the best, -Rob
1067777
The insert is for a M12 X 1.5 bolt. The new hole is different. The pitch of the new thread is the same (1.5)
572388
9mm x 1.25 . Is the hole stripped in the knuckle ? They sell a helicoil kit with inserts , a tap and installation tool . It's about $30 . You will need to drill the damaged hole with a "u" drill ( .368 I believe ) and hand tap . You can do this without removing the knuckle . use a pistol drill , get it square to hole by eye , the drill will follow the existing hole so don't worry . I am a tool and die maker , been cutting metal for 21 yrs .
781785
You should check what thread your plugs are. This kit is for M14 x 1.25 threads. It comes with three different length inserts to accommodate different reach (thread length) plugs. M14 x 1.25 means the outside diameter of the threaded surface is 14mm and the distance from one thread to the next (the pitch) is 1.25 mm. You should be able to Google your plugs and find the thread specs with one of the manufacturers.If you are struggling with this information you are probably out of your depth when it comes to this repair. If you mess it up, you may need a new cylinder head or at the least you will be taking the head to a machine shop for welding and repair. You should check what thread your plugs are. This kit is for M14 x 1.25 threads. It comes with three different length inserts to accommodate different reach (thread length) plugs. M14 x 1.25 means the outside diameter of the threaded surface is 14mm and the distance from one thread to the next (the pitch) is 1.25 mm. You should be able to Google your plugs and find the thread specs with one of the manufacturers.If you are struggling with this information you are probably out of your depth when it comes to this repair. If you mess it up, you may need a new cylinder head or at the... » Read More You should check what thread your plugs are. This kit is for M14 x 1.25 threads. It comes with three different length inserts to accommodate different reach (thread length) plugs. M14 x 1.25 means the outside diameter of the threaded surface is 14mm and the distance from one thread to the next (the pitch) is 1.25 mm. You should be able to Google your plugs and find the thread specs with one of the manufacturers.If you are struggling with this information you are probably out of your depth when it comes to this repair. If you mess it up, you may need a new cylinder head or at the least you will be taking the head to a machine shop for welding and repair. « Show Less
799561
The bolt (screw) circle is 11 5/8" so the hole diameter should be about 1/2" smaller than that or NO BIGGER THAN 11 1/8" otherwise the screws will have nothing to screw into. You can probably get away with using only 4 screws at 12-3-6 and 9 O'Clock. That's what I did.
677343
this pull start bolts to engine that has threaded screw holes in the blower housing. i am not sure about the screw size 8/32 or 10/32 i think
1829038
Yes, just don't over use it, more is not better. I only light skim the threads, and try to keep as much out of the inner channels of the threads as possible when using it for spark plugs. For other screws not near combustion, I apply it heavy but not dripping in goop in and out of the thread channel. The only difference between 80078 and 80071 looks to be the # of oz per container...*78 has 8oz, and *71 has 4oz.
448076
You order the size thread you want after the insert is installed. For example, an M12 x 1.5 will leave you with a threaded hole that accepts a metric 12mm bolt. Make sure you pick the right depth for your application.
891035
Hello, Thomas!Thank you for your inquiry. Our apologies. This kit is only designed for the SDT-85D core drill only, so we do not have the kit available for 5/8 11 inch thread.If you have any questions or concerns, please email us or call us at the number below.Thanks! Have a great day.Sincerely,Tom CupilaryAffordable Tool, LLCCustomer ServicePhone: 734-224-7758Fax: 734-224-7208
1204734
You want to go bigger then the 3/8th so there is room to get the bolt in straight, I use a 9/16th so that I have plenty of room to move it the bolt around and make sure that it seats good in the t-nut, you can go smaller if you drill really straight, make sure you test your t-nuts and get them straight before you attach your panels
72712
I bought this item some weeks ago, I know that the thread is 5/16-18. I used a couple in a hood of a SEAT Ibiza 2009, but I had to put it together with a 5/16 rivet nut.
1213906
Sorry I was slow to get back to you, been out of town. It is a 6 bolt configuration. Bolts I used were 5/16". From bolt to bolt is about 2 1/8". Straight across from outer bolt to outer bolt is 4 1/4". Inside diameter of Cyclone is 3" opening. Whether this is a standard flange I really don't know. You might check standard flange sizes somewhere on internet. Hope this helps.
627490
I know enough about mechanics and machinist work to tell you most people wont be able to give you a good answer; especially just by looking at it. Sorry, you have to know if it is Standard (SAE) or Metric (most likely metric), then you need to know threads per inch (fine or course thread). Your best bet is to take the exact screw you need to a hardware store and have someone help match it up.
1134573
If you already have the pilot hole drilled, then what is the hesitation about driving the lag bolt in? It will either go or it won't. If it only goes part way before the drill stops, then you can always finish driving it in with a box end wrench or socket wrench or drill the pilot hole to 7/16" and try again. This is not rocket science at this point. I'm done.
31328
I had the same dilemma. Using a 30mm bolt and a cover...after drilling I found that the helicoil was long enough. You can use two but not necessary. I added red threebond "locktite". Using the recommended drill bit...ONE helicoil was suffificient for me.
663928
The bolt pattern is as listed, 8x165.1(8 lug) and should bolt right up. We have plenty available.