EFC International
EFC International
1940 Craigshire St. Louis,
MO 63146-4008
Phone: 1 314.434.28881
Contact: www.efc-intl.com/contact
Website: www.efc-intl.com
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Floating clinch nuts provide a self-clinching fastener with a floating nut that compensates for mating misalignments to 0.030 inches (0.8 mm) and provides prevailing torque for the mating screw equivalent to MIL-N-250-27 specifications. All self-clinching fasteners install into a round hole, which may be punched or drilled in ductile materials. They provide a permanently attached fastener, which becomes an integral part of the panel or frame and eliminates the problems associated with loose hardware. Self-Clinching fasteners provide added value by speeding initial assembly as well as servicing in the field, keeping costs to a minimum.
Unit of Measure

Specifications

Material

 N/A Carbon Steel

Thread Size

 N/A 1/4-28

Minimum Panel Size

 N/A 0.056 in

Dimension B

 N/A 0.600 in

Hole Inside Diameter

 N/A 0.515 in

Maximum Dimension A

 N/A 0.514 in

Maximum Dimension C

 N/A 0.200 in

Maximum Dimension D

 N/A 0.054 in

Maximum Dimension E

 N/A 0.510 in

Minimum Hole Center to Panel Edge

 N/A 0.420 in

Features and Benefits

Features and Benefits

 N/A Self-clinching fasteners are pressed into holes in sheet metal by applying a steady squeezing force. This results in the cold-flow of sheet material, which is displaced by the knurl, into the undercut area on the shank of the fastener. Once fully embedded, the knurled area prevents torque-out during tightening of mating part.*Spec. ASTM B633-85 Thread: Non Locking: Class 2B, MIL-S-7742;(6H ISO metric)Self Locking: Class 3B, ANSI B1-1; (6H ISO metric) Float: 0.015 in. (.4mm) minimum in all directions from center, 0.030 in. (.8mm) total Use In: Materials with Rockwell Hardness of B-70 or less