AH-Type Radius Corner Hex Body Inserts provide exceptional spin out resistance in punched hex holes and are recommended for use with mating thread-locking fasteners. The radius corners of these inserts expand and fill the corners of a hex hole. (These insert can help avoid stress fractures of your material and prolong punch and die life by specifying a radius corner in the hex hole.) These inserts are available with either standard Open End (as pictured), or Closed Ends for leakage protection past the threads. For complete weathertight security, we also offer a variation with a foam seal under the heading "Blind Threaded Inserts" in this section of the Encyclopedia.
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AH-Type Radius Corner Hex Body Inserts

M10 x 1.5 Thread Size AH-Type Radius Corner Hex Body Insert
AH-Type Radius Corner Hex Body Inserts

1/4-20 Thread Size AH-Type Radius Corner Hex Body Insert
AH-Type Radius Corner Hex Body Inserts

M5 x 0.8 Thread Size AH-Type Radius Corner Hex Body Insert
AH-Type Radius Corner Hex Body Inserts

1/4-20 Thread Size AH-Type Radius Corner Hex Body Insert
AH-Type Radius Corner Hex Body Inserts

10-32 Thread Size AH-Type Radius Corner Hex Body Insert
Description N/A AH-Type Radius Corner Hex Body Inserts provide exceptional spin out resistance in punched hex holes and are recommended for use with mating thread-locking fasteners. The radius corners of these inserts expand and fill the corners of a hex hole. (These insert can help avoid stress fractures of your material and prolong punch and die life by specifying a radius corner in the hex hole.) These inserts are available with either standard Open End (as pictured), or Closed Ends for leakage protection past the threads. For complete weathertight security, we also offer a variation with a foam seal under the heading "Blind Threaded Inserts" in this section of the Encyclopedia.
Thread Size N/A M10 x 1.5 N/A 1/4-20 N/A M5 x 0.8 N/A 1/4-20 N/A 10-32
Finish N/A Yellow Zinc Dichromate (hexavalent Chromate) N/A Yellow Zinc Dichromate (hexavalent Chromate) N/A Yellow Zinc Dichromate (hexavalent Chromate) N/A Cadmium with Yellow Chromate N/A Cadmium with Yellow Chromate
Head Diameter N/A 16.64 mm N/A 0.510 in N/A 9.91 mm N/A 0.510 in N/A 0.390 in
Length L N/A 17.40 mm N/A 0.685 in N/A 11.05 mm N/A 0.685 in N/A 0.435 in
Body Features N/A Radius Corner Hex Body
End Features N/A Open
Maximum Grip Size N/A 3.80 in N/A 0.260 in N/A 5.7 mm N/A 0.260 in N/A 0.130 in
Minimum Grip Size N/A 0.70 in N/A 0.165 in N/A 3.3 mm N/A 0.165 in N/A 0.020 in
Reference LB N/A
Hole Size N/A 12.70 mm N/A 0.375 in N/A 7.14 mm N/A 0.375 in N/A 0.281 in
Head Height N/A 0.89 in N/A 0.030 in N/A 0.68 in N/A 0.030 in N/A 0.027 in
Maximum Insert Across Flats D N/A 12.70 mm N/A 0.374 in N/A 7.10 mm N/A 0.374 in N/A 0.280 in
Maximum IATD N/A
Maximum Dimension Il N/A 13.46 mm N/A 0.400 in N/A 6.99 mm N/A 0.400 in N/A 0.275 in
Maximum ILB N/A
Maximum Radius Corner R N/A 1.00 in N/A 0.040 in N/A 0.50 in N/A 0.040 in N/A 0.020 in
Material N/A Steel 1010/1008
Grip Call Out N/A 3.8 N/A 260 N/A 5.7 N/A 260 N/A 130
Thread Call Out N/A 1015 N/A 420 N/A 580 N/A 420 N/A 1032
Restriction of Hazardous Substances Directive Standard N/A No
Weight N/A
Industry Standards/Certifications N/A International Organization for Standardization (ISO) N/A Unified National Coarse (UNC) N/A International Organization for Standardization (ISO) N/A Unified National Coarse (UNC) N/A Unified National Coarse (UNC)
Additional Information N/A Radius Corner Hex Body Inserts are designed to be used with Grade 5 or Metric Class 8.8/9.8 mating screws, and can be installed either prior to or after finish. For varying degrees of corrosion resistance, these inserts are offered in several material/finish options to suit your needs. Please contact EFC International directly for design configurations and materials/finishes not specified.
Features and Benefits N/A
  • Maximum spin out resistance in punched hex holes in varying thickness materials
  • Avoid Stress Fractures and prolong punch & die life
  • 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 conventional rivet nuts
  • Superior Corrosion Resistance offered by several finish options
  • Quality Installation - Locate special installation tools anywhere in assembly, even in variable thickness materials, before or after finish.
Note N/A Special Installation tools are available by contacting EFC-International.
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