Self clinching nuts 212 high torque resistance reverse side of the sheet remains totally flush small and neat, ideal for all electronics or precision equipment easy assembly with any squeeze action press psm self clinching nuts are threaded fasteners which incorporate a knurled platform and a groove. Many pem selfclinching nuts in this bulletin are dimensionally equivalent to nuts. Pdf data sheets, tool recommendations and cad data for the. Pem self clinching nut insert hole tolerance the hole size specified is. Pem selfclinching flush nuts are flush with both sides of the sheet. Self clinching nuts are suitable for metallic materials, in some cases even for use in stainless steel panels. Provide strong threads or attachment in metal as thin as 0. Both the shank and the clinching ring are integrally formed into the bottom side of the nut. This configuration produces a flow in sheet metal, when the stud is pressed into a hole having a diameter about equal to the shank diameter and less than that of the.
With the end clinched in place, the prongs allow you to quickly snap a panel on and off these supports. From the manual entrylevel model, to semi automated. The selfclinching fastener handbook penn engineering. Typical self clinching nut head component host metal flush mounted host metal cold flows into undercut direction of installation force serrated clinching ring provides torque resistance. Self clinching fasteners work by utilizing a special clinch feature. Tr self clinch nut installation the tr self clinch nut can be installed into a prepunched or predrilled hole using a press capable of a squeezing action, causing the parent material to flow into the specially designed under head configuration offering a load bearing and torque resistant joint. How to test selfclinching fasteners for reliability. Over the years the original self clinching fastener design evolved to meet hundreds of new design applications.
The squeezing action embeds the head of the stud into the sheet. Manufacture of fasteners for the sheet metal fabricator. Selfclinching nuts type cla metric on pennengineering. Many pem self clinching nuts in this bulletin are dimensionally equivalent to nuts manufactured to nasm459381 specifications.
Catalogue fasteners for sheet metal hank self clinch fasteners nuts. Self clinching nuts type cla metric on pennengineering. Coldrolled steel 5052h34 aluminum installation torque installation torque. Pem is a brand name and a registered trademark for fasteners manufactured exclusively by pennengineering. Self clinching fasteners provide strong load bearing male or female threads in thin steel and aluminium panels. In recent years, simmonds has continued to develop this expertise and capability in high. Floating selfclinching fasteners pem floating selfclinching fasteners are available with or without locking threads. Unified nonlocking as, ac, a4 nuts selflocking las, lac, la4 nuts no protrusion threads extend into retainer shank positive. F and f4 fasteners are ideal for applications where a thin sheet requires threads stronger than a tapped hole but still must.
Press these metric nuts into a drilled or punched hole with an arbor press or similar pressure tool. As industrys need to hold together ultrathin and ultralight metals grew, so did the product line. In 1936, aircraft designer sir oliver simmonds company produced its first collection of aerospace nuts and accessories. Self clinching nuts are available in a wide range of materials including stainless steel, carbon steel, and aluminum. Types s ss are recommended for use in steel or aluminum sheets hrb rockwell b scale 80 or less and hb hardness brinell 150 or less. Self clinching fasteners and machines vvg befestigungstechnik. The nut is pressed into a predrilled or punched hole, then force is applied to the top of the nut until the bearing surface at the outside diameter of the bottom of the nut is flush with the sheet metal to which it is attached. Contact us today to learn more, or request a quote today. There is a parallel product line for insertion in pc boards. Selfclinching nuts made of stainless steel especially for. Blind rivet nuts are distinguished by simple and rapid installation. Self clinching nuts, flush with both sides 14 f stainless steel self clinching nuts made of stainless steel especially for aluminum panels. Installation is neat and easy, simply locate the fastener into a preprepared hole and apply a parallel squeezing force to embed the fastener into the panel.
A self clinching stud has a head and a threaded shank adapted to be secured in sheet material. The sheet metal surrounding the head cold flows into an undercut thereby making the fastener an integral part of the sheet. After assembly, neither the top nor bottom protrudes. Self clinching nuts are installed by placing them in properly sized holes in sheets and applying a parallel squeezing force to the head of the nut. Forty years later, simmonds permanently indented its name on the fastening world by inventing and manufacturing the first ever range of nylon ring selflocking nuts the nylstop. Pemsert self clinching flush nuts are designed to be installed into sheets as thin as. Designed for use in thin sheet metal when load bearing threads are necessary. Consult our marketing department for a complete military specifications and national aerospace standards guide bulletin nasm or check our website. Jhp fasteners provides self clinching pem style nuts in a wide range of size options. General pushout and torqueout values for pem brand selfclinching nuts.
To set the nut, it is screwed onto the threaded mandrel of the set ting tool, inserted into the. This knurled platform, when embedded in the sheet, causes the displaced material to flow evenly into the groove of the fastener to give a positive retention. Pem brand fasteners utilize self clinching, broaching, flaring, surface mount, or weld technology to provide strong, reusable, and permanent threads and mounting points in thin sheet metal, p. The selfclinching fastener handbook pennengineering. Feeding rates are five to six times faster than manual insertions. Both types shtm hard panel nuts and hflhtm hard panel studs are manufactured from hardened alloy steel to provide stronger thread strength. Online literature contains the most current information available. Pem self clinching nuts and fasteners are a popular brand for use in sheet metal and are available in a range of styles that accommodate the needs of either hard or soft metals. Self clinching fasteners products we can help you identify the right self clinching fastner products for your needs.
In the locality integrally adjoining the head and shank, stepped concave lands alternate circumferentially with convex unstepped lands. For threaded self clinching fasteners, another useful test to help determine a self clinching fasteners reliability in service is the measure of pullthrough the resistance of a fastener to pulling through the host metal sheet when the mating fastener is tightened, creating clamp load. Clinch nut ips the following installation panel material hardness limitations apply when installing self clinching nuts. The problem is that the drill bit is jumping around a little bit on the entry side and cutting.
Clinch nut inserco pdf catalogs technical documentation. Pem spinning clinch bolt pem spotfast fasteners pem keyhole self clinching, sheet joining fasteners advanced tca faceplate fastening solutions new products section type fhp self clinching, flushhead studs pem brand reelfast smt spacers nuts from pennengineering fastening technologies spec. The range of parts also includes nuts flush on both sides, closed parts, nuts with threadlocking as well as miniature designs. The metal displaced by the head flows smoothly and evenly around the ribs and into the annular groove securely locking the stud into the. Selfclinching flush nuts offer the advantage of being completely flush within the sheet. Our clinch nuts are not manufactured by or connected with the producers of pem. Pem selfclinching flush nuts are flush with both sides. Installs closer to sheet edge than standard clinch nuts. The nut is pressed into a predrilled or punched hole, then force is applied to the top of the nut until the bearing surface at the outside diameter of the bottom of the nut is. Is pem nut a term widely used as a genericised name for them.
Self clinching fasteners catalog, for captive fastener corp, manufacturing self clinching fasteners and inserts for plastics and pcb. Self clinching fasteners products cmts sheetmetal machines. Psm self clinching nuts are threaded fasteners which incorporate a knurled platform and a groove. These nuts have good chemical resistance and may be mildly magnetic. Captive selfclinching fasteners pdf 4 mb titgemeyer. These standoffs are designed to fit in the limited space of compact electronics such as laptops and handheld devices. Specified dimensions, expressed in inches or millimeters, may include internal thread size, outside diameter, panel thickness, and mounting diameter. Also known as clinch style captive nuts, press these nuts into a drilled or punched hole with an arbor press or similar pressure tool. Self clinching fasteners self clinching nuts pem nuts. Is there anything to merge, or is this simply a delete.
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