AL Type Inserts have a knurled body with a low-profile, large diameter head for maximum all-around strength and spin out resistance in drilled or punched holes. During insertion, the knurled body expands 360º to fill the hole, creating exceptional torque strength and resistance to vibration. A backside flange is 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.
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AL Type Blind Threaded Inserts

1/4-20 Size Aluminum 5056 AL Type Blind Threaded Insert
AL Type Blind Threaded Inserts

1/4-20 Size Brass 270/260 AL Type Blind Threaded Insert
AL Type Blind Threaded Inserts

1/4-20 Size Brass 270/260 AL Type Blind Threaded Insert
AL Type Blind Threaded Inserts

1/4-20 Size Monel 400 AL Type Blind Threaded Insert
AL Type Blind Threaded Inserts

1/4-20 Size Monel 400 AL Type Blind Threaded Insert
Description N/A AL Type Inserts have a knurled body with a low-profile, large diameter head for maximum all-around strength and spin out resistance in drilled or punched holes. During insertion, the knurled body expands 360º to fill the hole, creating exceptional torque strength and resistance to vibration. A backside flange is 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.
Material1 N/A Aluminum 5056 N/A Brass 270/260 N/A Brass 270/260 N/A Monel 400 N/A Monel 400
Finish2 N/A Clear Coating N/A Cadmium per QQP 416 Type I, Class 3 with Clear Protective Coating N/A Cadmium per QQP 416 Type I, Class 3 with Clear Protective Coating N/A Clear Coating N/A Tin Plate
Thread Size N/A 1/4-20
Head Height N/A 0.030 in
Mounting Hole Diameter N/A 0.390 in
Head Outside Diameter N/A 0.5 in
Maximum Dimension D N/A 0.390 in
Thread Call Out N/A 420
Maximum Dimension Il N/A 0.380 in
Length N/A 0.580 in
Restriction of Hazardous Substances Directive Standard N/A Yes N/A No N/A No N/A Yes N/A Yes
Grip Range N/A 0.027 to 0.165 in
Weight N/A 6.3 lb N/A N/A N/A N/A 20.2 lb
End Features N/A Open
Industry Standards/Certifications N/A Unified National Coarse (UNC)
Features and Benefits N/A Maximum Versatility
  • 1 For other material, please contact EFC International.
  • 2 For other finishes, please contact EFC International.
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