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SELF-CLINCHING TOP COLLAR LOCK NUTS (EFC 11CF681)

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  • SELF-CLINCHING TOP COLLAR LOCK NUTS (EFC 11CF681)
  • SELF-CLINCHING TOP COLLAR LOCK NUTS (EFC 11CF681)
  • SELF-CLINCHING TOP COLLAR LOCK NUTS (EFC 11CF681)

NUTS - SELF RETAINING SELF-CLINCHING TOP COLLAR LOCKNUTS

Product Description

Top Collar Lock Nuts combine reliable self-clinching mounting with a reusable clear nylon thread locking element.

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.

Features and Benefits

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.

Thread: Class 2B, MIL - S - 7742; (6H ISO Metric)

Use In: CFH-Materials with Rockwell Hardness of B-70 or less

Note 1 - Installation Tips:

Thin Sheets - May be installed in panel thickness of .040 to .059 (1mm to 1.5mm) if fastener is partially installed in sheet. The knurled collar must be raised above sheet by the difference in thickness from .059 (1.5mm)

Thick Sheets - If fastener is installed in sheet greater than .070 (1.7mm), knurled collar may crack if mating screw is tightened above maximum torque limit

* Locking Element is Clear Nylon

EFC 11CF681


EFC Part Number Availability THREAD SIZEPanel RangeHole Inside DiameterMaximum (A)Maximum (B)Maximum (C)Maximum (D)Minimum Center of Hole to Edge of PanelMATERIALUnit of Measure
E11CF6810001 Call for Quote M3 x 0.51.5-1.7865.977.13.65.54.3Carbon SteelMetric
E11CF6810002 Call for Quote M3 x 0.51.5-1.7865.977.13.65.54.3Stainless SteelMetric
E11CF6810003 Call for Quote M4 x 0.71.5-1.787.57.478.64.275.6Carbon SteelMetric
E11CF6810004 Call for Quote M4 x 0.71.5-1.787.57.478.64.275.6Stainless SteelMetric
E11CF6810005 Call for Quote M5 x 0.81.5-1.7887.978.94.57.56.4Carbon SteelMetric
11CF0003-97 Call for Quote M5 x 0.81.5-1.7887.978.94.57.56.4Stainless SteelMetric
E11CF6810007 Call for Quote #4-40.059-.0700.2340.2330.280.130.2160.132Carbon SteelImperial
E11CF6810008 Call for Quote #4-40.059-.0700.2340.2330.280.130.2160.132Stainless SteelImperial
E11CF6810009 Call for Quote #6-32.059-.0700.2650.2640.310.130.2460.158Carbon SteelImperial
E11CF6810010 Call for Quote #6-32.059-.0700.2650.2640.310.130.2460.158Stainless SteelImperial
E11CF6810011 Call for Quote #8-32.059-.0700.2970.2960.340.1550.2780.184Carbon SteelImperial
E11CF6810012 Call for Quote #8-32.059-.0700.2970.2960.340.1550.2780.184Stainless SteelImperial
E11CF6810013 Call for Quote #10-32.059-.0700.3120.3110.350.1650.2920.201Carbon SteelImperial
E11CF6810014 Call for Quote #10-32.059-.0700.3120.3110.350.1650.2920.201Stainless SteelImperial





 

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