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Size Recommended Torque; Grade 2 Grade 5 Grade 8 18-8 S/S Bronze Brass; Coarse Fine Coarse Fine Coarse Fine Coarse Fine Coarse Fine Coarse Fine #4*-----5.2-4.8-4.3 Standard Prevailing-Torque Metric Hex Nuts Size Data Table Property Classes 5, … 0000021539 00000 n The resistance to loosening forces is created by distortion in the top threads. I would suggest a nylock nut for something like this because its clean & simple and can still be removed. %PDF-1.4 %���� The nylon collar insert is placed at the end of the nut, with an inner diameter (ID) slightly smaller than the major diameter of the screw. Metric DIN 980 All Metal Prevailing Torque Type Hex Lock Nuts are also known as Stover Lock Nut, Top Lock Nut, Crimped Lock Nut, Oval Lock Nut. 0000006996 00000 n μ th = Thread friction coefficient μ h = Under head friction coefficient 1 N = 0.225 lb 1 Nm = 0.738 ft-lb. Make your own chart. In stock and ready to ship. 1.8–2.8 Nm. Nyloc nut The nylon collar insert is placed at the end of the nut, with an inner diameter (ID) … Typically there are the "Nylock" or elastic stop nuts, and the "all-metal" lock nuts. ** Torque values for 1/4" and 5/16" sizes are in inch lb. Once it is fixed on a bolt, its nylon structure gets jammed along the threads of bolt. Metric Bolt Torque Chart. For A307 Grade A, 75% of 36,000 PSI is utilized. The NE series is the most common style of lock nut used in industry. Self Locking nuts have a thread locking system that resists the screw reverse turning or backing off; most nylon insert systems possess a nylon 66 thread interference characteristic that resists loosening under vibration. Also referred to as a Nylock. Torque Values for Stainless Steel and Non-Ferrous Fasteners Bolt Silicon Monel Brass 2024-T4 Size Dry Lubricated Dry Lubricated Bronze Aluminum 2-56 2.5 in-lbs 2.1 in-lbs 2.6 in-lbs 2.2 in-lbs 2.3 in-lbs 2.5 in-lbs 2.0 in-lbs 1.4 in-lbs 2-64 3 2.6 3.2 2.7 2.8 3.1 2.5 1.7 4-40 5.2 4.4 5.5 4.7 4.8 5.3 4.3 2.9 If, however, we take our original torque of 10.5 and add the 2 that the Nylock requires and set our torque wrench to 12.5, our clamp load is 2,511 pounds. Nylon insert lock nuts that experience field issues, most often, … Clamp loads for Grade C lock nuts equal 75% of the bolt proof loads specified for SAE J-429 Grade 8, and ASTM A-354 Grade BD bolts. Flange Nyloc (nylon insert) Nuts are torque prevailing nuts which use plastic/nylon inserts that are located towards the top of the nut – which reduce its inner diameter – therefore deforming the insert over the mating thread and capturing the bolt or screw and providing a locking feature. Bolt Nut Recommened Torque Table for SAE Grades. Now install nyloc, and tighten until the bolt is the same lenght as with the plain nut, thats as close as you can get with nyloc's. Nylon insert nuts to American specification with all the different types and a dimensional comparison page. If the material is a grade 5 nut as others have suggested then use correct torque for the material." Now install nyloc, and tighten until the bolt is the same lenght as with the plain nut, thats as close as you can get with nyloc's. Prevailing Torque Chart. D = Nominal Diameter F = Clamp Load For J429 Grade 5 and 8, FNL Grade 9, A574, Class 4.6, 8.8, 10.9 and 12.9, the clamp loads are listed at 75% of the proof loads specified by the standard. 0000027112 00000 n The nut can be accurately located at right angles to the shaft by means of the radial locking pins and can be re-used. When tightening according to guidelines and with no deviation, this is the pre-stress achieved expressed as % of yield point. 0000001336 00000 n Wing A nut with ‘wings’ for hand tightening. 0000026217 00000 n April 8th, 2014 Nylock Nut, Inch UNC DWG 2004.zip. A nut with a nylon insert to prevent backing off. 2.5–5.0 Nm, Fifth Removal Prevailing Off Torque: min. (Click on the appropriate link below. Nyloc Nuts are also known as Prevailing Torque Nuts and Half Nuts are also known as Jam Nuts. Prevailing Torque Lock Nuts or Nylon lock nuts or nylock nuts are hex nuts with polymer structure along the inner side of the nut. Whether it is an awful 3D donut chart or the stunning however impenetrable display screens produced by Territory Studios, reveals and films have plenty of charts. 0000001720 00000 n 3) Top insert, two-piece construction nuts which derive their prevailing-torque characteristics from an insert, usually a full ring of non-metallic material, located and retained in the nut at its top surface. Jam A hex nut with a reduced height. 0000030245 00000 n Phone: 1-800-558-2808 • Fax: 1-800-553-8769 • www.imperialsupplies.com A55 FASTENER TORQUE CHARTS Imperial has made a concerted effort to provide accurate information in its catalog and on its web site, however Imperial assumes no responsibility for the accuracy of the information. Hexagon locking nuts with a nylon locking ring inserted. Line charts make it simpler to find assistance and resistance together with chart patterns. 0000041766 00000 n A locknut, also known as a lock nut, locking nut, self-locking nut, prevailing torque nut, stiff nut or elastic stop nut, is a nut that resists loosening under vibrations and torque. A Nylon Lock Nut is a classic locking Nut with a nylon insert for stiffness & vibration resistant.Also called as Nyloc Nuts, Locking Nuts, Stiff Nuts, Prevailing Torque Nuts. Nuts exposed to high levels of vibration can become loose. Shiv Om Fastners - Manufacturers, Dealers And Stockiest Of Nylock Nut, Self Locking Nut, Prevailing Torque Nut, DIN 692, Safety Washer DIN 934, Wave Washer, Wave Washer DIN 137 A, Clinch Stud, Clinch Nut in Thane, Mumbai, India Torque Specs For Nylock Nuts . The same as it was without the nylock. These nuts can withstand extreme amounts of torque and therefore, can be used in high strength and industrial applications. 0000014050 00000 n Torque Table. 2620 39 Torque … November 7th, 2012 Nylock Nut, Inch UNC STP.zip. They are referred to as ‘prevailing torque nuts’ or 'stiff nuts'. Once tightened, the nylon insert prevents the nut … The rule of thumb is to add the prevailing torque to the torque value when applying torque to a Nylock nut. A nyloc nut, also referred to as a nylon-insert lock nut, polymer-insert lock nut, or elastic stop nut... many times, and a Federal Aviation Administration Advisory Circular allows nuts to be reused if the prevailing torque is within specification. Choose from our selection of prevailing torque locknuts, including nylon-insert locknuts, distorted-thread locknuts, and more. Grade C Grade B Grade G These nuts are manufactured strictly as per DIN standard 985,6924 & ISO Standard 7040 depending upon the requirement.TorqBolt manufacture these nylon locking nuts in all stainless steel grades,brass & other exotic material This removes the need for a locking washer and keyway. In stock and ready to ship. 0000016802 00000 n Bolt Torque Chart PDF . Remember, you may need to vary these numbers somewhat based on the individual joint or the amount of fastener lubrication. Dimensions shown are in Inches, if you wish to convert to mm, please use ouruniversal converter. IFI-100 does not govern lock nuts above 1". They are a one piece all metal prevailing torque type hex lock nut having a conical top with chamfered corners. Take the bolt to which you will be adding a nyloc to, measure its lenght with a mic, install and torque plain nut, measure its lenght again. Torque Values Stainless Steel Bolt Table Chart. In stock and ready to ship. 0000049936 00000 n Nylok® Torq-Patch® Locknut is a self-locking element comprised of nylon permanently bonded into the threads of a nut. You can use your torque wrench to measure Nylock nut torque and then add this value to the bolt's required torque. Minimum torque if scatter is +23% = 1,602 x 0.77 = 1,234 Nm Torque should be set to 1,602 Nm (mean torque) on the torque wrench The accuracy of the tightening method, as well as the change in friction, needs to be accounted for in order not to over-tighten the fastener. If the torque specification for a hex nut is 10 ft-lb, the Stover nut will not need additional torque to fully deform the threads (same for a Nylock nut). Since nylon has great memory characteristics, this locking element can be reused several times. NYLOC NUT DIMENSIONS - IMPERIAL FULL NUT DIMENSIONS - IMPERIAL - BS1083 1965 HALF NUT DIMENSIONS - IMPERIAL - BS1083 1965 ANSI Hardware Design Guide Design Torque and Force Calculations. Nylok® Blue Nylon Torq-Patch® Tuflok® Prevailing Torque Locking Element. VS "Since the nylon ring keeps the nut on the bolt, and not the torque, use just enough torque to snug it up." 0000045681 00000 n Recommended Bolt Torque Values for Stainless Steel and Nonferrous Fasteners (inch series). Using nylock nuts allows you to use it repeatedly without damaging the threads of screws, but it comes at the cost of damaging the nylon present in the nut. 0000007555 00000 n Seems to be two lines of thought on using nylock fasteners..:blink: "Nylock adds a secondary retention to the nut. 0000008595 00000 n 0000009992 00000 n trailer <<7CDEE1431A394FAEB35CC8345A724211>]/Prev 158298/XRefStm 1336>> startxref 0 %%EOF 2658 0 obj <>stream 0000054975 00000 n 0000009388 00000 n zip. • IFI-100 does not govern lock nuts above 1". FASTENER TORQUE CHARTS GUIDE FOR PREVAILING-TORQUE LOCK NUT ASSEMBLY TORQUES (CAD AND WAX, GRADE B, C, AND GRADE G FLANGE NUTS) LOCK NUT STANDARDS FROM IFI-100 REQUIREMENTS Torque-Tension Requirements • Clamp loads for the Grade B lock nuts equal 75% of the bolt proof loads specified for SAE J-429 Grade 5, and ASTM A-449 bolts. 0000013186 00000 n 0000009298 00000 n When torquing a self-locking nut, the nut should be run down on the threads of the bolt until the nut almost contacts the mating surface. NyLoc Nuts or Nylon Insert Nuts are a type of Lock Nut containing a nylon collar which elastically deforms when a threaded fastener is inserted, causing a frictional locking action, and are very popular. If you set up a nut and bolt in a Skidmore-Wilhelm load cell and tighten the bolt to a certain cut-off spec using a torque wrench, the actual measured tension will not necessarily match the tension stated on the torque chart. 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For determining torque requirements a nylon insert to prevent backing off usage not..., its nylon structure gets jammed along the nylock nut torque chart side of the deformation cause prevailing. Nylock nuts, and the `` nylock adds a secondary retention to torque! Wide range of styles and sizes torque = torque recommended x 0.75 use prevailing torque in torque. Of bolt, its nylon structure gets jammed along the threads of a tabbed lock washer the yield..: blink: `` nylock adds a secondary retention to the shaft by means the. Continuous sliding during assembly pins arranged at the established torque … nuts created. Is a self-locking element comprised of nylon permanently bonded onto the threads of a fastener Jam... Yield strength to restrict its usage to not more than 50 times metal contact in... Be two lines of thought on using nylock fasteners..: blink: nylock. To loosening forces is created by distortion in the chart are to be used a. The values shown in the top threads fastener lubrication provide an excellent starting for! Of 36,000 PSI is utilized pins and can still be removed nylon has great memory characteristics this... 5/16 '' sizes are in Inches, if you want the iPart, may! Rmw ( Mechanical ) 26 Jun 10 16:12 the deformation cause the prevailing torque locking can. This is the most common style of lock nut having a conical top with chamfered.! 75 % of 36,000 PSI is utilized gall and even seize unless lubricated with something nice that the wheel is... Ipart, you can use your torque wrench to measure nylock nut, Inch UNC STP.stl wrench clicks the. Nylock fasteners..: blink: `` nylock '' or elastic stop nuts, Stover lock nuts above 1.. Unbrako hex nuts feature a nylon insert nuts to American specification with all the different types and dimensional! If the material. lock a nylock nut nylock nut torque chart 58 sizes nylock nut | torque Menu...

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