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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The Low Profile Knurled Threaded Insert features a knurled body with a smaller diameter, reduced profile head to provide virtually flush installation without special hole preparation. Countersink drilling or dimpling of the parent material can be eliminated. During insertion, the knurled body expands 360° to fill the hole, creating exceptional torque strength and resistance to vibration. A backside flange is also formed, even in multiple thicknesses of materials without any need for adjustments. These inserts are to be used with Grade 5 or Metric 8.8/9.8 mating screws. All sizes available are listed on this page, in a representative sampling of materials, finishes and end options (Open Ends for most versatility, and Closed Ends to eliminate leakage past threads).
Unit of Measure

Specifications

Material

 N/A Steel 1010/1008

Thread Size

 N/A 1/4-20

Head Height

 N/A 0.022 in

Head Outside Diameter

 N/A 0.455 in

Grip Call Out

 N/A 165

Maximum IATD

 N/A 0.895 in

Maximum ILB

 N/A 1.005 in

Dimension LB

 N/A 1.19 in

Thread Call Out

 N/A 420

Body Features

 N/A Knurled Body

End Features

 N/A Closed

Maximum Grip Size

 N/A 0.165 in

Minimum Grip Size

 N/A 0.027 in

Head Features

 N/A Low Profile Nearly Flush

Mounting Hole Diameter

 N/A 0.390 in

Restriction of Hazardous Substances Directive Standard

 N/A No

Industry Standards/Certifications

 N/A Unified National Coarse (UNC)

Finish

Finish

 N/A Yellow Zinc Dichromate

Features and Benefits

Features and Benefits

 N/A Virtually Flush Installation Superior Torque Strength - 360º hole-filling expansion provides exceptional torque strength and resistance to vibration. Backside Flange is formed during installation even in variable thicknesses of material, without adjustment Superior Thread Strength from internal rolled thread manufacturing process Threads Gauge before & after installation Reduce Inventory - Grip range is 2-1/2 times that of standard rivet nuts Corrosion Resistance - Steel, Aluminum, Brass and Monel are available with various finishes, including ROHS compliance.

Note

Note

 N/A
  • Special Installation tools are available in the Encyclopedia or through EFC-INTL directly.
  • All sizes are listed on this page in a representative sampling of Materials, Finishes and Design Options. Any configuration not specified below is available through EFC-INTL directly.