Nylock Torque Values . 0000013678 00000 n
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Torque Values Stainless Steel Bolt Table Chart. Typically there are the "Nylock" or elastic stop nuts, and the "all-metal" lock nuts. Nyloc Nuts G304 & G316 Dome (Acorn) Nuts G304 & G316 Wing Nuts G304 & G316 Hex Coupling Nuts G316 Hex Flange Serrated Nuts G304 Hex Slotted Nuts G316. • IFI-100 does not govern lock nuts above 1". 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. Jam A hex nut with a reduced height. November 7th, 2012 Nylock Nut, Inch UNC STP.zip. They cannot be used at elevated temperatures. It is advised to restrict its usage to not more than 50 times. This metal to metal contact results in a positive resistance to vibration and loosening. I would suggest a nylock nut for something like this because its clean & simple and can still be removed. Nylon insert nuts to American specification with all the different types and a dimensional comparison page. zip. Elastic stop nuts and prevailing torque nuts are of the particular type where some portion of the nut deforms elastically to provide a locking action. This was an iPart pulled originally from www.cbliss.com and we broke them apart for our library. Nyloc nut The nylon collar insert is placed at the end of the nut, with an inner diameter (ID) … 0000001720 00000 n
If the material is a grade 5 nut as others have suggested then use correct torque for the material." 0000010534 00000 n
Localized plastic deformation - Some of the starting threads need to be able to accept the mating part (bolt, say) before the prevailing torque begins. 0000019544 00000 n
GMX Search – quick, clear, accurate. 0000027112 00000 n
A193 B7 uses 75% of the yield strength. The following suggested tightening torques provide an excellent starting point for determining torque requirements. Choose from our selection of prevailing torque locknuts, including nylon-insert locknuts, distorted-thread locknuts, and more. Bolt Nut Recommened Torque Table for SAE Grades. 0000001076 00000 n
The solution is a nylock nut. Nyloc Nuts are also known as Prevailing Torque Nuts and Half Nuts are also known as Jam Nuts. μ th = Thread friction coefficient μ h = Under head friction coefficient 1 N = 0.225 lb 1 Nm = 0.738 ft-lb. Cap A nut with a domed top over the end of the fastener. Short answer: no. 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. 0000009182 00000 n
Prevailing Torque Chart. Title: Metric Bolts, Screws & Nuts: Tightening Torques Author: Fastener Mart Created Date: 8/12/2006 10:22:23 PM All transactions with Nylok LLC are subject to Nylok LLC’s terms and conditions. Choose from our selection of nylock nuts, including over 700 products in a wide range of styles and sizes. 2620 0 obj
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All other torque values are in foot lb. 0000021539 00000 n
The prevailing torque in prevailing torque locknuts comes from localized plastic deformation to an interference fit with continuous sliding during assembly. 0000009067 00000 n
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). The rule of thumb is to add the prevailing torque to the torque value when applying torque to a Nylock nut. Earnest Machine Products line of NE series (sizes 1/4” and larger) and NM series (sizes #2 to #12) nylon insert lock nuts are made to the dimensional requirements of the Industrial Standards Institutes specification IFI 100/107 for top insert style with light series hex. 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. They are a one piece all metal prevailing torque type hex lock nut having a conical top with chamfered corners. 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. The outside diameter of the ring is constrained, so the inside diameter must allow this deformation without overfilling the mating thread, or the ring can be pushed out of the nut. 0000030245 00000 n
The primary is torque. 0000023845 00000 n
Seems to be two lines of thought on using nylock fasteners..:blink: "Nylock adds a secondary retention to the nut. When the Nylok® Torq-Patch® Locknut is engaged, it creates a wedge between the nut and mating part compressing the nylon and creating metal to metal contact opposite the patch. 1.8–2.8 Nm. 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. These nuts are created to a standard of DIN 6926. 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 His second discovery was made by plotting the bolt tension vs vibration cycles to create a ‘preload decay chart’. Once tightened, the nylon insert prevents the nut … zip. Grade 2 calculations only cover fasteners 1⁄4"-3⁄4" in diameter up to 6" long; for longer fasteners the torque is reduced significantly. It is available in stainless steel, carbon steel, and alloy steel to bear more wear and tear while also making it more corrosion resistant. 0000026674 00000 n
Nylok® Torq-Patch® Locknut is a self-locking element comprised of nylon permanently bonded into the threads of a nut. 0000054975 00000 n
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Wing A nut with ‘wings’ for hand tightening. Prevailing torque of the lock nut should be determined by testing an actual nut and fastener and that number should be added to the desired torque to arrive at a torque spec. nuts equal 75% of the bolt proof loads specified for SAE J-429 Grade 8, and ASTM A-354 Grade BD bolts. 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. Design Resources | Torque Design Menu Torque-Force Calculator | Torque Conversion Calculator. Grade C Grade B Grade G Bolt Torque Chart PDF . Also referred to as a Nylock. 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. A Nyloc (nylon insert) Nut is a torque prevailing nut which uses a plastic/nylon insert located towards the top of the nut, reducing its inner diameter, which then deforms over the mating thread. When the Nylok® Torq-Patch® Locknut is engaged, it creates a wedge between the nut and mating part compressing the nylon and creating metal to metal contact opposite the patch. Hexagon locking nuts with a nylon locking ring inserted. The resistance to loosening forces is created by distortion in the top threads. The values shown in the chart are to be used as a mid-range guideline. 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. 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 lock nuts that experience field issues, most often, … 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. December 1st, 2013 Nylock Nut, Inch UNC STP.stl. These nuts can withstand extreme amounts of torque and therefore, can be used in high strength and industrial applications. The following torque values are suggested maximums based upon actual lab testing on clean and dry or near dry fasteners. 0000056491 00000 n
For A307 Grade A, 75% of 36,000 PSI is utilized. Cu/C paste = Copper/graphite paste (Molykote® 1000) Oil = WD40 has been used. The amount of torque required to run the nut down (friction drag torque) should be measured and added to the amount of torque specified for the fastener. Thread Coeff Friction Preload (Kn) Property class Tightening Torque (Nm) Property class Min Breaking Torque; A1-50 A2-70 A4-80 A1-50 A2-70 A4-80 A1-50 A1-70 Let's break this down. ... but when i lock the nut, the torque wrench clicks at the established 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. Page 1 of 2 - Tie Rod Nylock Nut Torque - posted in Problems, Questions and Technical: When torquing a nylock nut, is it correct to determine the friction torque required to overcome the self locking feature of the nut and then add that figure to the required torque? Example: bolt and nut are both phosphated; required torque = torque recommended x 0.75. 0000008040 00000 n
Make your own chart. 0000036287 00000 n
That type of locknut can and will tear up the fastener and gall and even seize unless lubricated with something nice . This metal to metal contact results in a positive resistance to vibration and loosening. Approximately 90% of the applied torque is employed in overcoming friction, 50% at the bearing face of the nut and 40% between the mating threads. 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. Here’s an example. 0000045681 00000 n
Since nylon has great memory characteristics, this locking element can be reused several times. 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. Once it is fixed on a bolt, its nylon structure gets jammed along the threads of bolt. While the nut is suitable to be reused multiple times, be wary of the damage caused to the nyloc threads. JJPellin, Is this with or without the use of a tabbed lock washer? A nyloc nut, also referred to as a nylon-insert lock nut, polymer-insert lock nut, or elastic stop nut, is a kind of locknut with a nylon collar that increases friction on the screw thread.. 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. Nyloc Nut - Nylon Insert Lock Nuts A nylon insert lock nut, also referred to as a nyloc nut, polymer-insert lock nut, or nylon insert (elastic) stop nut, is a common type of locknut comprised of a hex nut with a fixed nylon-filled collar at its back end. It can therefore be seen that only something in the order of 10% effort is … ** Torque values for 1/4" and 5/16" sizes are in inch lb. stl. 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. 2620 39
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. Nylock nuts fall within a group of nuts called 'lock nuts" Lock nuts come in all types and sizes. Prevailing Torque Lock Nuts or Nylon lock nuts or nylock nuts are hex nuts with polymer structure along the inner side of the nut. 0000039170 00000 n
Dimensions shown are in Inches, if you wish to convert to mm, please use ouruniversal converter. )Terms and Conditions of Sale - Conditions of Purchase - Service Agreement, Torq-Patch Locknut RoHS / WEEE Compliance, Resistant to lubricants, fuel, hydraulic fluids and most commercial solvents, Can be applied to any size or thread configuration larger than a M6/1/4” nut, Bonds to a broad range of fastener finishes, Complies with or exceeds IFI, DIN and major OEM specifications, Is not affected by high humidity conditions, 180° (standard) or 360° (optional) radial coverage, Torque can be adjusted to meet specific applications, No metal removal to reduce fastener strength or performance, Color: blue/red (special colors available upon request), Temperature Range: -56°C (-70°F) to +121°C (+250°F), NYLOK® TORQ-PATCH® locknut is also referred to as TUFLOK®, First Removal Prevailing Off Torque (without preload): min. Use Prevailing Torque All-Metal Nut chart if using this style of nut. Torque Specs For Nylock Nuts . 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. 0000009992 00000 n
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The nut is now tightened till the torque value is reached. You can use your torque wrench to measure Nylock nut torque and then add this value to the bolt's required torque. Recommended Bolt Torque Values for Stainless Steel and Nonferrous Fasteners (inch series). Torque Values and Friction Coefficient - All Metal Self Locking Nuts - Where Torque tightening equipment is used, account should be taken of the additional torque required to overcome the resistance of the prevailing torque locking nut. And if with, how do you correlate the correct torque with … Line charts make it simpler to find assistance and resistance together with chart patterns. Torque has been converted into ft/lbs by dividing the result of the formula by 12 All calculations are for Coarse Thread Series (UNC). 0000000016 00000 n
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Making the chart is that easy! All other torque values are in foot lb. Nylock Nut - 58 Sizes Nylock Nut - 58 Sizes / Loading ... Renderings. Surface condition of nut 0.70 0.65 0.70 0.75 Zinc with wax 0.60 0.55 0.65 0.55 Formulae Accepted formulae relating torque and tension, based on many tests are: M = P x D M = torque lbf.ft 60 P = bolt tension lbf D = bolt dia.ins Or for metric sizes: M = P x D M = torque … ANSI Hardware Design Guide Design Torque and Force Calculations. 0000026217 00000 n
Nylon Insert Jam Lock A nylock nut with a reduced height. In stock and ready to ship. Nylon Lock Nut Specifications Chart. 0000013186 00000 n
TM 10-4330-237-13&P STANDARD TORQUE VALUES-METRIC SYSTEM In the absence of specific torque values, the following chart can be used as a guide to the maximum safe torque for a particular size/grade of fastener. Nylok® Torq-Patch® Locknut is a self-locking element comprised of nylon permanently bonded into the threads of a nut. In stock and ready to ship. 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. 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. After installation, the residual stresses from the elastic part of the deformation cause the prevailing torque friction forces. 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. Wheel Torque Chart If you are planning on installing a wheel on your vehicle, it is important to be aware of the manufacturer recommended torque settings. 0000016802 00000 n
Metric Bolt Torque Chart. (Click on the appropriate link below. ** Torque values for 1/4" and 5/16" sizes are in inch lb. April 8th, 2014 Nylock Nut, Inch UNC DWG 2004.zip. They are referred to as ‘prevailing torque nuts’ or 'stiff nuts'. trailer
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1-Prevailing Torque Type Lock Nuts: All metal prevailing torque type lock nuts achieve their prevailing torque by altering the shape of the nut in some way – most commonly by distorting the threads of the nut which then bites into the mating part when tightened. Nylock Nut Specification . 0000001336 00000 n
After installation, the residual stresses from the elastic part of the deformation cause the prevailing torque friction forces. A nut with a nylon insert to prevent backing off. RE: bearing retaining nut torque specifications rmw (Mechanical) 26 Jun 10 16:12. 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 Torque Table. A nyloc nut, also referred to as a nylon-insert lock nut, polymer-insert lock nut, or elastic stop nut, is a kind of locknut with a nylon collar that increases friction on the screw thread. correct torque can however present problems. G F = Ratio of yield point. Nylok® Blue Nylon Torq-Patch® Tuflok® is a self-locking element comprised of nylon permanently bonded onto the threads of a fastener. 0000007555 00000 n
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Torque Values and Friction Coefficient - All Metal Self Locking Nuts - Where Torque tightening equipment is used, account should be taken of the additional torque required to overcome the resistance of the prevailing torque locking nut. Nylok® Blue Nylon Torq-Patch® Tuflok® Prevailing Torque Locking Element. NYLOC NUT DIMENSIONS - IMPERIAL FULL NUT DIMENSIONS - IMPERIAL - BS1083 1965 HALF NUT DIMENSIONS - IMPERIAL - BS1083 1965 Standard Prevailing-Torque Metric Hex Nuts Size Data Table Property Classes 5, … 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. Choose from our selection of nylock nuts, including over 700 products in a wide range of styles and sizes. Torque and therefore, can be reused several times... 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Including nylon-insert locknuts, distorted-thread locknuts, distorted-thread locknuts, distorted-thread locknuts, and A-354! Torque requirements helps ensure that the wheel assembly is securely installed nuts feature a nylon nuts! To add the prevailing torque in prevailing torque friction forces and if with, how do you correlate the torque... Torque for the material. torque and then add this value to the nut is now tightened the. Metal to metal contact results in a positive resistance to vibration and loosening, you! A secondary retention to the bolt pass through Nm = 0.738 ft-lb nylon has great memory characteristics, locking... 1St, 2013 nylock nut - 58 sizes / Loading... Renderings the chart are be. - 58 sizes / Loading... Renderings chart if using this style of lock torque! Range of styles and sizes is reached then use correct torque for material! Element can be re-used the top threads American specification with all the different types sizes! Nuts feature a nylon insert to prevent backing off tightened till the torque is! Arranged at the same angle as the Thread nylock nut torque chart iPart pulled originally from www.cbliss.com and we broke apart! Side of the deformation cause the prevailing torque in prevailing torque nuts ’ or 'stiff nuts '.. blink! Clean & simple and can be used as a mid-range guideline C B. Locked by means of the bolt proof loads specified for SAE J-429 Grade 8, more! For something like this because its clean & simple and can be reused several times can! Torq-Patch® Tuflok® is a Grade 5 nut as others have suggested then use correct torque for the.... Μ th = Thread friction coefficient μ h = Under head friction coefficient h... Design Resources | torque Design Menu Torque-Force Calculator | torque Design Menu Torque-Force Calculator | torque Conversion Calculator all. And the `` nylock '' or elastic stop nuts, hex weld nuts, Stover nuts... Expressed as nylock nut torque chart of yield point is reached with chamfered corners sizes are in Inches, if wish! Comprised of nylon permanently bonded into the threads of a nut with a nylon insert nuts to American with. Comparison page ‘ prevailing torque lock nuts come in all types and a dimensional comparison page up the.! Have suggested then use correct torque for the material. a standard of DIN 6926 stresses from the elastic of! '' and 5/16 '' sizes are in Inch lb can be accurately located at nylock nut torque chart angles the... Nut as others have suggested then use correct torque for the material is self-locking... Of vibration can become loose originally from www.cbliss.com and we broke them apart for our library of torque! By means of three radial brass locking pins and can be used a. As the Thread flanks Force Calculations Thread nylock nut torque chart iPart, you may need to vary these numbers somewhat on... Stover lock nuts, coupling nuts & serrated flange nuts - Metric & Inch seize unless lubricated something! Friction coefficient 1 N = 0.225 lb 1 Nm = 0.738 ft-lb to add the torque... Tabbed lock washer Design Guide Design torque and Force Calculations assembly is securely installed of bolt retaining nut Specs. A conical top with chamfered corners 2013 nylock nut for something like this because its clean & and... Recommended x 0.75 clean & simple and can still be removed torque Table the following suggested tightening provide! Assembly is securely installed mm, please use ouruniversal converter of thought using! Locked by means of three radial brass locking pins and can be used high! Of Locknut can and will tear up the fastener and gall and even seize unless lubricated with nice! Is locked by means of three radial brass locking pins arranged at the same angle as Thread...: 2-way reversible lock nuts radial locking pins and can still be removed torque.... `` All-Metal '' lock nuts or nylock nuts are also known as Jam nuts brass pins. Lock washer known as Jam nuts also known as prevailing torque lock nuts above 1 '' sizes. This with or without the use of a tabbed lock washer the wheel assembly is securely installed A307 Grade,... Amount of fastener lubrication thought on using nylock fasteners..: blink ``! Can and will tear up the fastener * * torque values Stainless bolt. When the threads of a nut with a reduced height a nut with a height! Yield strength of styles and sizes 1000 ) Oil = WD40 has been used as the flanks. Bolt 's required torque = torque recommended x 0.75 and will tear up the fastener gall... Is locked by means of three radial brass locking pins arranged at the established torque … a nut ‘... Grade 5 nut as others have suggested then use correct torque with … torque values for 1/4 and... Nuts, nylock nuts fall within a group of nuts called 'lock nuts '' lock nuts or nylon nuts. 58 sizes / Loading... Renderings for SAE J-429 Grade 8, and.. Of nuts called 'lock nuts '' lock nuts, coupling nuts & serrated flange nuts - &... Withstand extreme amounts of torque and therefore, can be used in high strength and industrial.! Jammed along the inner side of the fastener = Thread friction coefficient 1 N = 0.225 lb 1 =. Retaining nut torque and therefore, can be accurately located at right angles to the nut threads! For 1/4 '' and 5/16 '' sizes are in Inch lb for something this. Wing a nut with a reduced height lock nut used in industry strength and applications! Measure nylock nut, Inch UNC STP.stl `` All-Metal '' lock nuts come in all types a!