FE
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PEM® brand miniature fasteners fit into a minimal space and provide strong, reusable threads. FE™ MINIATURE SELF-CLINCHING FASTENERS

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PEM® brand miniature fasteners fit into a minimal space and provide strong, reusable threads. PEM miniature fasteners provide visual indication when proper installation has been accomplished. A strong, knurled collar, which is embedded in the sheet, guarantees against rotation of the fastener in the sheet. The torque-out resistance of the knurl greatly exceeds the torque that can be exerted by the self-locking feature. When this collar is embedded in the sheet, the undercut cavity beneath the collar is filled with displaced sheet material thereby developing pushout resistance. FE™/FEO™/UL™...

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All dimensions are In Inches. Thread Size (1) 2B Go Gauge may stop at barrel end but class 3A screw will pass thru with finger torque. (2) Shank code applicable only to U and UL fasteners. (3) In applications between the sheet thicknesses for your thread size, see last paragraph of installation data on page 4. Knurled collar may fracture if fastener is used in sheets thicker than the specified range and the screw is tightened beyond maximum tightening torque. (4) 6H Go Gauge may stop at barrel end but class 4h screw will pass thru with finger torque.

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(1) HRB - Hardness Rockwell "B" Scale. HB - Hardness Brinell. (2) To meet national aerospace standards and to obtain testing documentation, product must be ordered using appropriate NASM45938 part number. Check our web site for a complete Military Specification and National Aerospace Standards Reference Guide (Bulletin NASM). (3) See PEM Technical Support section of our web site for related plating standards and specifications. (4) MD finish on stainless steel provides a minimum of 100 hours of salt spray resistance. INSTALLATION 1. Prepare properly sized mounting hole in sheet. Do not...

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MINIATURE SELF-CLINCHING FASTENERS PERFORMANCE DATA FOR U™/UL™ FASTENERS(1) Test Sheet Material 5052-H34 Aluminum Thread Shank Installation Type Pushout Torque-out Installation Code Code (lbs.) (lbs.) (in. lbs.) (lbs.) Cold-rolled Steel Pushout (lbs.) Test Sheet Material 5052-H34 Aluminum Cold-rolled Steel Thread Shank Type Installation Pushout Torque-out Installation Pushout Torque-out Code Code (kN) (N) (N•m) (kN) (N) (N•m) U/UL M2 1 PERFORMANCE DATA FOR FE™/FEO™/FEX™/FEOX™ FASTENERS(1)(2) Test Sheet Material 5052-H34 Aluminum Thread Type Code Installation Pushout Torque-out Installation...

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(1) Axial strength for nuts is limited by knurled ring strength. (2) Screw strength level shown is the minimum needed to develop full nut strength, higher strength screws may be used. (3) Tightening torque shown will induce preload of 65% of locknut minimum axial strength with K or nut factor is equal to 0.20. In some applications tightening torque may need to be adjusted based on the actual K value. If screw strength is less than the value shown, tightening torque should be proportionately reduced by multiplying the torque shown by the actual screw strength over the screw strength shown....

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