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SPRING 2020

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Distributor's Link Magazine Spring 2020 / Vol 43 No2

52 THE DISTRIBUTOR’S

52 THE DISTRIBUTOR’S LINK Anthony Di Maio Anthony E. Di Maio attended Wentworth Institute and Northeastern University. In 1962 he started working with Blind Fasteners as Vice-President of Engineering & Manufacturing for two blind rivet manufacturers. He has been Chairman of the Technical Committee of the Industrial Fasteners Institute (IFI) and is still involved in the writing of IFI specifications. In 1991, he started ADM Engineering and is working with Fastener Manufacturers developing new fasteners and special machinery. He can be reached at ADM Engineering, 6 Hermon Ave., Haverhill, MA 01832; phone and fax 978-521-0277; e-mail: tdimaio@verizon.net. THE UNIQUE VALUES OF BLIND RIVETS Blind rivets are unique fasteners having consistent tensile and shear values when set in an application. The setting of a blind rivet in the work piece or application is a very simple task for the operator. The operator, when setting a blind rivet with either a hand or power tool needs to insert the blind rivet in the premade hole in the work piece or application and then operate the setting tool. The mandrel of the blind rivet will break at a predetermined tensile force and the blind rivet is properly set. Because the mandrel has a pre-determined tensile break force, the operator has no direct control over the tensile and shear values of the set blind rivet in the work piece. All blind rivets have this pre-determined tensile break force and the operator can not change this predetermined mandrel tensile break force. Blind rivets are operator error proof. There is no such error that occurs with threaded fasteners, such as under-torque or overtorque. A blind rivet is a mechanical fastener that can join component parts of an assembly where access for fastener installation and activation is available from only one side. A blind rivet is a blind fastener having a selfcontained mechanical feature which permits formation of the upset on the blind side of the blind rivet and expansion of the rivet body during the setting of the blind rivet while joining component parts of the assembly. You can define a blind rivet as a two-piece fastener and it is installed from one side only of whatever is being joined together. CONTRIBUTOR ARTICLE FIGURE 1 A significant distinction should be made at this point that the term “blind” associated with these fasteners is not an application limitation, thinking that they can only be used in blind applications. Figure 1 shows what “blind” application is. There are many applications where blind side fastening is not the primary requirement, rather, the blind rivet is selected because they represent a well controlled, light weight, low installation fasteners cost system for securing components. A blind rivet is a two-component fastener consisting of a rivet body and mandrel. There are many types and designs of blind rivets, such as, OPEN-END, (Figure 2) CLOSED-END, MULTl-GRIP, STRUCTURAL, BULB TYPE and DOME PEEL. All blind rivets function in the same manner. The mandrel of a blind rivet is inserted into the nosepiece of a blind rivet setting tool and the rivet body is then inserted into the pre-drilled or stamped hole in the work piece with the flange of the rivet body flush against the work surface. FIGURE 2 CONTINUED ON PAGE 126

THE DISTRIBUTOR’S LINK 53 KERR LAKESIDE 26841 Tungsten Road, Euclid, OH 44132 TEL: 1-800-487-5377 EMAIL info@kerrlakeside.com WEB www.kerrlakeside.com QUALITY AND SERVICE FOR OVER 70 YEARS AND COUNTING In business since 1948, Kerr Lakeside Inc. is a well-respected manufacturer of high-quality socket screw products, cold formed special products, and precision turned components. Kerr Lakeside remains a family owned and operated business, with a focus on providing the highest level of service and quality. Kerr offers a complete line of socket screw products in packaged and bulk quantities, on the shelf and ready for same day shipment. Kerr Lakeside consistently maintains an over 97% fill rate, allowing our customers the assurance that product is available and ready for shipment when they need it. We also maintain a large inventory of raw material, assuring that we provide products quickly without disruption and BUSINESS FOCUS ARTICLE reduced lead times on make to print specials. Kerr Lakeside’s Quality Management system, is recognized by two independent third party assessing bodies as conforming to ISO-9001 and ISO 17025 (A2LA Laboratory Accreditation). This attention to quality demonstrates our determination to supply parts our customers can be confident meet specifications every time. Complete Lot traceability is maintained throughout the manufacturing process and material certifications can be provided on request. For over 70 years Kerr Lakeside has provided the highest level of service and quality to our customers and will continue operating under these principals for many years to come. KERR LAKESIDE

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