FLAT WASHERS AND SPECIAL STAMPINGS

1 FLAT WASHERS ANDSPECIAL STAMPINGSMETALLIC AND NON-METALLICWCL- One Of The Few True Fastening SpecialistsWCLhas one of the broadest, most diversified offerings of fastening componentsavailable from any single know what each fastener is designed to do and what its limitations engineers will recommend the fastener best suited to your specific are not limited to justifying a certain product and integrity are confirmed by the leading fasteners makerswho have chosen us to represent them. We are master distributors for:WCLassures product quality three ways:1. We work only with manufacturers having outstanding quality programs and reputations2. We have made a major investment in our Quality Inspection program to monitor the conformance of incoming parts to customer specifications and needs.

2 We qualify parts from our manufacturers and processors to assure that all specifications are We have developed a state-of-the-art control system to insure required lot traceability and certification on any part we - Competitively Priced Quality Fastening Components When You Want Them!Rolex National Disk SpringSuperior Washer and Gasket Tyton CompanyVIP - Volt Industrial ProductsAlliance Plastics Finishing Products DivisionAnillo IndustriesITW FastexITW Shakeproof Assembly ComponentsITW Shakeproof Industrial Threaded ProductsWEST COAST LOCKWASHER,16730 East Johnson Drive, Box 3588 Industry, California 91744 Phone (800) 331-3816 Fax (626) 369-9805 PAGEAN-MS-NAS- Standards - Complete specifications on both inch and metricparts, including materials and 3 High Strength-Heat Treated, WASHERS -Complete listing of high strength, heattreated flat WASHERS and flat washerswith countersunk holes made from4130 Chrome Molybdenum Steel andother steel Polymer Flat WASHERS -Used to prevent leaks and to sun, ozone,weathering and Flat WASHERS - Phenolic flatwashers are stamped from variousindustrial laminates such as paper,canvas, linen, glass, glass epoxy, cottonphenolics, - Nylon Flat WASHERS & Spacers - Nylon WASHERS resist abrasion, impacts.

3 Organic solvents, oil,gas and temperature extremes. Thesewashers have good creep - Teflon Flat WashersWashers made from inert Virgin Teflonare impermeable to most corrosive liquids, vapors and gasses, even in high temperature or high pressure environments. Excellent electrical anddielectric - Metallic Shoulder WASHERS -Used with insulating screws, studs andrivets;as mounting pads forelectrical/electronic components; toprevent compression of clamped material and provide spacing Standard Spacers - Used to separate and insulate adjacent to creep assures that separation will remain WASHERS - This square-holed washer is designedfor use with a carriage bolt.

4 Four bentprongs on the washer can be embed-ded in wood, making the washer self-retaining during INFORMATIONPAGEW asher Facts From WCL - Quickreview of vital flat washer informationserves as valuable guide for cost-effec-tive flat washer Washer Reference Specifications-Standard flat washer profile, nominaldimensions, materials and Test - Description of flat WASHERS covered in AN, MS, NAS and Available - Explanationof test requirements called for undervarious mil-specs and a listing of themany quality certifications availablefrom FLAT WASHERS 45-789 Insulating Fibre Flat WASHERS - Theseelectrical insulating flat WASHERS aremade from Vulcanized Fibre, FibreBoard, Fish Paper, High Density Bone,Rag Paper, FLAT WASHERSM etallic SPECIAL WASHERS - 24 sets ofline drawings graphically show the variety of shapes included in the FlatWashers Material and Plating Codes 53-54 Flat Washer Facts From WCLBBUULLLLEETTIINNP latingIf it is necessary that a part be finished by the application of acoating such as cadmium, zinc.

5 Nickel, anodize, silver or gold,the correct required finishshould be clearly defined toavoid unnecessary expense. Ifcommercial plating thickness isacceptable, it should be sonoted. If a SPECIAL thickness or a post finish is required, it should be clearly described and specified as & CostCommercially produced flat wash-ers are designed to meet the needsof most applications relative todimensional tolerances, hardnessand surface conditions. Just aboutany SPECIAL need can be met, butit should be remembered that thecloser the tolerance, the greaterthe cost. Wherever possible, avoidspecifying close tolerances or variations not warranted by & ShapesWashers are made from virtuallyany metallic or non-metallic material that can be stamped;including low and high carbonsteels, steel alloys, copper, phosphor bronze, titanium, aluminum, fibre, mica, mylar,rubber, nylon, teflon, phenolicand many more.

6 And be configured to provideany size and shape can be round, square, rectangular, hexagonal, oval, ornon-symmetrical. They can alsohave tabs, crowns, notches, andmay be countersunk in a variety of FinishWherever possible, accept the surface condition of the materialfrom which the washer isstamped. To meet aspecification for asmoother surface finishmay require such costlysecondary operations asgrinding or the manufacturing process, small stamp-ing burrs are produced. A normal stamping burr is defined as 10% of stockthickness, but not less than .0005". If thisis acceptable, the drawing or specificationshould state normal stamping burrsacceptable . One method normally usedto reduce stamping burrs is tumbling or vibratory deburring.

7 While this will notcompletely eliminate burrs, the processsmooths and reduces the burr free specifications on printsshould be avoided, if possible. HardnessWherever possible, specify commercial quality, low carbonsteel. This generally meets most application needs in themost economical manner. Onlyspecify tempered material if SPECIAL hardness is critical to the application. Tempers suchas 1/4 or 3/4 hard in steel aremore difficult to obtain and, therefore, more Tolerance RangeAs a general cost saving rule, keep tolerances as broad as possible. Specify,for example, a Rockwell C 45-50 ratherthat a Rockwell C 47-48 wherever it isacceptable. Case hardening tolerancesshould not be deeper that necessary( " to " deep file hard is consid-ered adequate for most applications).

8 Ordering QuantitiesThere is an inverse relationshipbetween quantity and price: thelarger the production quantity, thelower the unit price. For economy,order the largest quantity may then schedule economicalshipments of your parts in incre-ments based on your anticipatedneeds and usage, rather than makinga single 4 WEST COAST LOCKWASHER,16730 East Johnson Drive, Box 3588 Industry, California 91744 Phone (800) 331-3816 Fax (626) 369-9805 FLAT WASHER AVAILABILITY- The flat WASHERS listed in this catalog represent only a small portion of the many thatare available. The WCL inventory contains over 7000 different sizes, in different materials, etc. All of these cannot be listed here because of space limitations.

9 Source tooling is available for many others not shown. Pages 29 and 30 showsome of the more commonly used specials that are available, cross-referenced to appropriate ordnance ASSURANCE- WCL has a Quality Assurance Department and Program to confirm the integrity of all the products it sells. We represent only those manufacturers that have an outstanding reputation for consistently providinghigh quality parts, and we maintain complete procurement data and certifications from our suppliers and processors onpertinent Stock Reference , TESTING AND CERTIFICATIONS- A detailed explanation of the test requirements called for underthe various military specifications and a listing of the many certifications available through WCL, appear on pages 8 and9.

10 WCL can be an indispensable source for parts conforming to all MIL-SPEC requirements. If parts are not tested to MIL-SPEC requirements, they are not MIL-SPEC parts. If parts are not plated to MIL-SPEC requirements, they are not MIL-SPEC DIMENSIONS- Nominal dimensions are provided on all flat WASHERS and are so identified. They are provided for reference only. Parts are produced to standard commercial tolerance and are appropriate for all commercial applications. With regards to thickness dimensions indicated, parts conform to stamping industry frequently stocks popular washer sizes in more than one thickness and this is indicated in the charts.