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).
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Low Profile Knurled Threaded Inserts

AK Type Aluminum 5056 Low Profile Knurled Blind Threaded Insert
Low Profile Knurled Threaded Inserts

AK Type Brass 270/260 Low Profile Knurled Blind Threaded Insert
Low Profile Knurled Threaded Inserts

AK Type Steel 1010/1008 Low Profile Knurled Blind Threaded Insert
Low Profile Knurled Threaded Inserts

AK Type Steel 1010/1008 Low Profile Knurled Blind Threaded Insert
Low Profile Knurled Threaded Inserts

AK Type Steel 1010/1008 Low Profile Knurled Blind Threaded Insert
Description N/A 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).
Material N/A Aluminum 5056 N/A Brass 270/260 N/A Steel 1010/1008 N/A Steel 1010/1008 N/A Steel 1010/1008
Finish N/A Clear Coating N/A Cadmium with Clear Coating N/A Yellow Zinc Dichromate N/A Cadmium with Yellow Chromate N/A Yellow Zinc Dichromate
Thread Size N/A 3/8-16
Head Height N/A 0.022 in
Head Outside Diameter N/A 0.595 in
Maximum Dimension D N/A 0.530 in
Grip Call Out N/A 150 N/A 150 N/A 150 N/A 150 N/A 312
Maximum IATD N/A
Maximum ILB N/A
Dimension LB N/A
Thread Call Out N/A 616
Body Features N/A Knurled Body
End Features N/A Open
Maximum Grip Size N/A 0.150 in N/A 0.150 in N/A 0.150 in N/A 0.150 in N/A 0.312 in
Minimum Grip Size N/A 0.027 in N/A 0.027 in N/A 0.027 in N/A 0.027 in N/A 0.150 in
Head Features N/A Low Profile Nearly Flush
Maximum Dimension Il N/A 0.470 in N/A 0.470 in N/A 0.470 in N/A 0.470 in N/A 0.425 in
Mounting Hole Diameter N/A 0.531 in
Restriction of Hazardous Substances Directive Standard N/A Yes N/A No N/A No N/A No N/A No
Length N/A 0.690 in N/A 0.690 in N/A 0.690 in N/A 0.690 in N/A 0.805 in
Weight N/A 5.2 lb N/A N/A 31.2 lb N/A N/A 24.45 lb
Industry Standards/Certifications N/A Unified National Coarse (UNC)
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 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.
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