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Fastening Systems Engineered For Performance™

Wedge Locking Washers

U.S. DEPARTMENT OF TRANSPORTATION FEDERAL RAILROAD ADMINISTRATION APPROVED

[email protected] | 1.877.944.9352 | disc-lock.com FEATURES AND BENEFITS

• Heavy duty, self-locking design

• For use with bolts up to Class 10.9, Grade 8

• Available in sizes from ¼" (M6) to 1 ½" (38MM) Other sizes available by special order.

• Available in 1010 Carbon and 316L Stainless Steel

•  washers are case hardened and coated with RoHS-compliant Delta Protekt™

• Provided in pre-assembled, glued pairs

• Easy to install with standard tools

• No re-tightening needed once installed

• Vibration proof according to MIL-STD-1312-7

HOW DOES IT WORK?

Disc-Lock washers consist of two washer-shaped pieces which have cams on one side and ridges on the other. The cam sides are mated together and then installed between the and the joint material.

NUT NON-SLIP SEIZING BOLT CONTRACTS RIDGES ELONGATES DISC-LOCK CAMS JOINT MATERIAL

As the nut is tightened, one When the joint experiences The angle of the cams is greater half of the Disc-Lock washer is vibration and shock, the nut than the pitch angle of the thread seated to the joint material, and will attempt to rotate loose. on the bolt; the cams and the the other is seated to the nut. As this happens, one half of the non-slip ridges of the Disc-Lock Disc-Lock washer will attempt washer work together to stop to rotate with the nut – when it any movement. does this, the other half of the As the bolt contracts, the washer, with its interlocking inclined planes of the cam will cams will provide opposite force, cause the nut to rotate back to prohibiting movement. Preload its original position. will be maintained and the assembly will be locked.

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[email protected] | 1.877.944.9352 | disc-lock.com PROVEN RESULTS

DISC-LOCK LOCKING WASHER JUNKER TEST

Disc-Lock Wedge Locking Washers have 35 been tested on a Junker Vibration Machine. The Junker test, considered the most 30 severe vibration test for bolted joints according to DIN 65151, is used to 25 determine the point at which a loses its preload when subjected to 20 shear loading due to transverse vibration. 15 Clamp Load (kN) When tested against a standard washer 10 using the Junker test, Disc-Lock Wedge Locking Washers remained secure under 5 severe vibration conditions, while the standard washer loosened significantly. 0 0 18 36 54 72 90 108 126 144 162 180 Time (Seconds) Disc-Lock Washer Disc-Lock Washer tested at 1.2 MM for 2200 cycles Standard Washer Standard Washer tested at .9 MM (until failure)

PROVEN APPLICATIONS

Disc-Lock wedge locking washers outperform conventional, split-ring, and other style washers in a wide variety of high stress, corrosive, and vibration-sensitive applications including:

• Agriculture Equipment • Automotive • Construction Equipment • Heavy Rail • Logging Equipment • Marine • Military • Mining • Oil Drilling Equipment • Solar • Wind • Waste Management

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[email protected] | 1.877.944.9352 | disc-lock.com INSTALLATION

• To install the Disc-Lock Washer, place the preassembled pair of washers between the nut and the joint material.

• As the nut is tightened, one half of the Disc-Lock Washer is seated to the joint material and the other to the nut.

• Disc-Lock Washers should only be used against flat, relatively smooth metal surfaces.

• If the joint material is not metal, the Disc-Lock washer may be used by securing the metal plate to the joint material in such a manner that the metal plate will not rotate.

• A torque wrench is not required to install Disc-Lock Washers.

• An air-gun can be used when installing and removing Disc-Lock Washers.

• If installed correctly, the Disc-Lock Washer will ensure that the remains secure, and will not require any re-tightening.

TORQUE GUIDELINES

When installing Disc-Lock Washers in a common application, expect an increase in required torque over recommended installation torque to achieve proper clamp load and maximum joint safety. Due to varying installation conditions and customer specific applications, additional information and torque recommendations are available by contacting Engineering support at Disc-Lock.

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[email protected] | 1.877.944.9352 | disc-lock.com APPLICATION EXAMPLES

Disc-Lock Wedge Locking Washers can be used to protect joint integrity in a wide variety of joint types, including:

Counter Bore Stud Bolt

Large Hole Tapped Hole

Disc-Lock Wedge Locking Washers are not recommended for mating surfaces that are not locked in place or are harder than the washers, and in non-preloaded joints.

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[email protected] | 1.877.944.9352 | disc-lock.com DL Washer Brochure-4 pages:281 - a/w 9/18/12 9:57 AM Page 2

How does it work? DISC-LOCK Washer Installation Procedures Proven Applications The Disc-Lock Washer outperforms all other types of loose, washered, threaded or pinned systems in a The working principle behind 1 To install the Disc-Lock Washer, simply mate the cams wide range of high stress, corrosive and vibration sensitive applications including: together and place between the nut and the joint material. the Disc-Lock Washer is G Automotive Industries - cars, G Heavy Equipment G Pipelines simple. It consists of two trucks, buses Manufacturers G Public Utilities washer-shaped pieces, which G Compressors G Logging Equipment G Quarrying have inclined cams on one G Construction G Marine Installations G Rail Engineering side and a series of ridges on G Cranes G Military G Rapid Transit Systems G Farm Equipment G Mining G Refineries the other. On installation the G Foundries G Oil Drilling Rigs G Rock Hammers two cam sides are mated G Go-Kart Racing (On and Off-shore) G Steel Mills together and placed between G Pile Hammers the nut and the joint material. Under vibration the nut will 2 As the nut is tightened, one half of the Disc-Lock Washer is seated to joint material and the other to the nut. attempt to rotate loose but, as the angle of the cams is SPECIFICATIONS & ORDERING INFORMATIONDISC-LOCK Washer Technical Specification greater than the pitch angle of the thread on the bolt, the interlocking cams and the non-slip ridges of the Disc-Lock CAMS ON SEIZING RIDGES ON MATING SURFACE OUTER SURFACE Washer work together to create a jamming effect. This effect prevents loosening and further locks the assembly, thereby maintaining joint integrity. The result is a fastening system that is vibration proof according to Military Standards. (United States Military MIL-STD-1312, Vibration Test 7. Test 3 When the bolt elongates due to vibration and shock, the nut Results data available upon written request.) will attempt to rotate loose. As one half of the Disc-Lock Washer tries to rotate with the nut, the interlocking cams The Disc-Lock Washer is not only a vibration-proof locking work against each other. This will maintain the preload and CARBON STEEL WASHER device but also a heavy duty structural locking device lock the assembly. PART # SIZE STANDARD DIMENSIONS (INCHES) METRIC DIMENSIONS (MILLIMETER) BOX QUANTITY INCHES METRIC INNER DIAMETER (A) OUTER DIAMETER(C) THICKNESS (EE) INNER DIAMETER (A) OUTER DIAMETER(C) THICKNESS (EE) recommended for the most stressful applications. DL-M3-#6 #6 3 0.150CROSS-SECT0.340ION 0.080 CROSS3.81-SECTION 8.64 2.03 3,000 CAM DETAIL RIDGE DETAIL Once applied and installed correctly the Disc-Lock Washer DL-M4-#8 #8 4 0.175 0.340 0.080 4.45 8.64 2.03 3,000 DL-M5-3/16 3/16 5 0.203 0.401 0.080 5.15 10.18 2.03 3,000 will ensure that the fastener remains secure and that nuts DL-M6-1/4 1/4 6 0.262 0.495 Sp0.127ecificatio6.66ns and O12.57rdering I3.22nformatio3,000n and bolts do not require retightening. DL-M8-5/16 5/16 8 0.326 0.628 0.142 8.28 15.95 3.60 3,000 DL-M10-3/8 3/8 10 0.409 0.705SIZE 0.160 10.38 STAN17.90DARD DIMENS4.06IONS 3,000METRIC DIMENSIONS DL-M11-7/16 7/16 11 0.450 0.880 0.153 11.43 22.35 3.89 2,000 ORDER # OF STD METRIC A C **EE A C **EE DL-M12-1/2 1/2 12 0.510 0.937 0.166 12.95 23.82 4.22 1,000 NUMBER CAMS INCHES MM. IN. IN. IN. MM. MM. MM. Key Features of the DISC-LOCK Washer DL-M14-9/16 9/16 14 0.572 1.128 0.175 14.53 28.65 4.45 500 4 As the bolt contracts, the inclined planes of the camDL-M16-5/8s cause 5/8 16 098-0.65101 6 1.247 #6* 0.188 3 16.53 .150 31.67.340 4.79.080 3500.81 8.64 2.03 the nut to rotate back to its original position. DL-M20-3/4 3/4 20 099-0.82001 6 1.381 #8* 0.242 4 20.82 .175 35.08.340 6.15.080 4500.45 8.64 2.03 G Manufactured in 1010 carbon steel and case hardened to DL-M22-7/8 7/8 22 100-0.88301 6 1.470 3/16* 0.268 5 22.44 .203 37.34.401 6.80.080 5500.15 10.18 2.03 40/55 on the Rockwell C scale to a depth of 0.005 DL-M24-1 1 24 101-1.01501 6 1.626 1/4* 0.256 6 25.78 .262 41.30.495 6.50.127 6500.66 12.57 3.22 (0.13mm) DL-M27-1-1/8 1-1/8 27 1.140 1.715 0.240 28.96 43.56 6.10 500 102-01 8 5/16* 8 .326 .628 .142 8.28 15.95 3.60 G Also manufactured in stainless steel (316) up to size 5/8” DL-M30-1-1/4 1-1/4 30 1.275 1.875 0.265 32.39 47.63 6.73 500 103-01 8 3/8* 10 .409 .705 .160 10.38 17.90 4.06 (16mm) DL-M36-1-3/8 1-3/8 36 1.430 2.196 0.230 36.32 55.78 5.84 500 DL-M38-1-1/2 1-1/2 38 104-1.52301 10 2.196 7/16* 0.230 11 38.68 .450 55.78.880 5.84.153 15001.43 22.35 3.89 G Plated per A.S.T.M. B633-98, Trivalent Chromate *Weight and thickness of pairs will vary slightly with gauge of metal 105-01 10 1/2* 12 .510 .937 .166 12.95 23.82 4.22 (NO HEXAVALENT CHROME) and baked to prevent • Produced from 1010 Carbon Steel. 106-01 10 9/16* 14 .572 1.128 .175 14.53 28.65 4.45 hydrogen embrittlement. (Disc-Lock Washers are not • Coated in Delta Protekt ® KL100 and VH302 GZ. Contact your Disc-Lock strategic account representative for more information. 107-01 12 5/8* 16 .651 1.247 .188 16.53 31.67 4.79 suitable for hot dip galvanizing) 5 In common with most fastening devices, Disc-Lock Washers should only be used against flat, relatively smooth 108-01 1STAINLESS4 3/4 STEEL WASHER20 .820 1.381 .242 20.82 35.08 6.15 Note: Some sizes in stock are plated to A.S.T.M. metal surfaces. PART # SIZE 109-0STANDARD1 1 4DIMENSIONS7 (INCHES)/8 22 METRIC.88 DIMENSIONS3 1.4 (MILLIMETER)70 .268 BOX 2QUANTITY2.44 37.34 6.80 B633, however, as these stocks are depleted, all new INCHES METRIC INNER DIAMETER (A) OUTER DIAMETER(C) THICKNESS (EE) INNER DIAMETER (A) OUTER DIAMETER(C) THICKNESS (EE) 6 If the joint material is not metal, the Disc-Lock Washer may 110-01 16 1 24 1.015 1.626 .256 25.78 41.30 6.50 products will be Trivalent Chromate plated DL-M6-1/4ss 1/4 6 0.262 0.495 0.101 6.660 12.57 2.560 3,000 be used by securing a metal plate to the joint maDL-M8-5/16terial in ss 5/16 8 111-0.32601 12 0.628 1-1/8 0.119 27 8.2801.140 15.951.715 3.020.240 23,0008.96 43.56 6.10 G such a manner that the metal plate will not rotate. Other finishes superior to Zinc are also available including DL-W10-3/8ss 3/8 10 112-0.40901 12 0.705 1-1/4 0.135 30 10.381.275 17.901.875 3.400.265 31,0002.39 47.63 6.73 stainless steel 7 A torque wrench is not required when installing DDL-M11-7/16isc-Lock ss 7/16 11 117-0.45001 12 0.880 1-3/8 0.135 36 11.431.430 22.352.196 3.330.230 31,0006.32 55.78 5.84 G Each lot is micro-hardness tested after heat treating Washers. DL-M12-1/2ss 1/2 12 113-0.51001 12 0.937 1-1/2 0.136 38 12.951.523 23.822.196 3.450.230 31,0008.68 55.78 5.84 DL-M14-9/16ss 9/16 14 0.572 1.128 0.127 14.53 28.65 3.230 1,000 G Can be used with Grade 2, 5, 8 and even stronger bolts 8 An air-gun can be used when installing and removing *For orders of stainless steel parts, add “SS” to front of order number. Disc-Lock Washers. DL-M16-5/8ss 5/8 16 0.651 1.247 0.134 16.53 31.67 3.400 1,000 DL-M20-3/4ss 3/4 20 ** Weigh0.820t and thickne1.381ss of pairs wi0.183ll vary slightly w20.82ith gauge of 35.08metal. 4.650 500 DL-M22-7/8ss 7/8 22 0.883 1.470 0.240 22.44 37.34 6.100 500 ...... THE SOLUTION TO THE PROBLEM OF FASTENER FAILUDL-M24-1RE.ss...... 1...... 24....TH1.015E SOLU1.626TION 0.240TO THE25.78PROB41.30LEM O6.100F FASTE500NER FAILURE...... • Produced from 316L Stainless Steel.

Disc-Lock Wedge Locking Washers are also available through our Made in the U.S.A. product line

Disc-Lock washers are manufactured in an ISO-certified facility 5

[email protected] | 1.877.944.9352 | disc-lock.com DISC-LOCK AND SHEREX PRODUCT SHOWCASE

Disc-Lock and Sherex are committed to providing customers with the lowest total installed cost fastening solutions in a wide variety of applications.

BLIND RIVET NUTS FULL HEX RIVET NUTS

Sherex blind rivet nuts provide load bearing Sherex full hex rivet nuts provide increased spin threads in thin sheet materials that are too thin out resistance. The entire line is compatible for a tapped thread. Blind rivet nuts are also used with Class 8, Grade 5 hardware. Sizes available when an application has little or no access to the include 1/4-20 to 1/2-13 and M6 to M12 in both a backside as they can be installed from the front small flange and large flange. side of the work piece. NAS AND MS RIVET NUTS CLINCH NUTS Sherex offers full lines of NAS and MS rivet nuts Sherex offers three different kinds of clinch for the aerospace, defense, military, and general nuts to meet the specific requirements of the industrial markets that meet the NAS 1329, NAS customer’s application. Sherex clinch nuts can 1330, and MS27130 standards. All styles are be used in various high strength such as available in steel, aluminum, 430 stainless steel, dual phase , HSLA, and TRIPS to meet class 316 stainless steel, alloy steel, and . 10 nut strength requirements. Sherex clinch nuts can be used in any material that offers access IN-DIE AUTOMATION from both sides of the base material. Sherex combines world class fastener RIV-FLOAT® FAMILY manufacturing and design capability with industry leading automation equipment to offer RIV-FLOAT® was developed for easy, accurate, the best solution for your application. This “One and fast attachment of components in off center Source Service” ensures that you are receiving applications. RIV-FLOAT® Accounts for tolerance the best support before and after the start of stack up in joint design and misalignment during production. Whether you are using 10,000 pieces the service of the joint. RIV-FLOAT®-SHORT is or 10 million pieces, Sherex offers different levels available for applications requiring backside of automation and fastener capability to meet clearance similar to that of various riveted nut both your budget and performance requirements. plates and cage nuts. RIVET NUT INSTALLATION LARGE THREAD RIVET NUTS TOOLING

Sherex offers the first product line of its kind Sherex offers an array of installation tooling offering rivet nuts up to 3/4-10 and M16. These from hand tools made for prototyping and small rivet nuts were developed for applications where volumes to hydro-pneumatic tools made for critical joint performance and high tensile loads production runs. are required.

WEDGE LOCKING NUTS WEDGE LOCKING BOLTS

Disc-Lock wedge locking nuts are patented, Disc-Lock wedge locking bolts are designed heavy duty, self-locking nuts designed to for blind-hole applications, using the same maintain joint integrity in high vibration wedge locking technology as the nut and applications. Available in sizes from M10 to M22, washer product lines to prevent loosening due 3/8” to 7/8”. to vibration.

Please contact us for more information on any of these product lines.

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[email protected] | 1.877.944.9352 | disc-lock.com DISC-LOCK U.S.A.

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SHEREX MEXICO

Ask About Our MADE IN THE U.S.A. Product Line

DL-C-LW 1-2017

[email protected] | 1.877.944.9352 | disc-lock.com