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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Closed End Insertnuts eliminate leakage past the threads from either side of the application.
  • Wedged Head for greater torque capabilities, especially in soft or thin materials & electrical grounding applications.
  • Low Profile
  • Large Diameter Head
  • Knurled Body for use in punched or drilled holes. During insertion, the knurled body expands 360° to fill the hole, providing torque strength and vibration resistance. A flange forms on the backside, without any need for adjustments, even in multiple thicknesses of materials.
Closed End Insert Nuts
Unit of Measure
1 2 

Item #

Item Name

Thread Size

Head Outside Diameter

Hole Diameter

06000318BW-XX N/A 0.02 to 0.08 Inch (in) Grip Closed End Insert Nut Low-Profile Knurled with Wedged Head N/A 6-32 N/A 0.39 in N/A 0.265 in
06700071BW-XX N/A 0.08 to 0.13 Inch (in) Grip Closed End Insert Nut Low-Profile Knurled with Wedged Head N/A 6-32 N/A 0.39 in N/A 0.265 in
E06012240054-BW N/A 0.02 to 0.08 Inch (in) Grip Closed End Insert Nut Low-Profile Knurled with Wedged Head N/A 8-32 N/A 0.39 in N/A 0.265 in
06000301BW-XX N/A 0.02 to 0.08 Inch (in) Grip Closed End Insert Nut Low-Profile Knurled with Wedged Head N/A 8-32 N/A 0.39 in N/A 0.265 in
06700070BW-XX N/A 0.08 to 0.13 Inch (in) Grip Closed End Insert Nut Low-Profile Knurled with Wedged Head N/A 8-32 N/A 0.39 in N/A 0.265 in
E06012240090-BW N/A 0.02 to 0.13 Inch (in) Grip Closed End Insert Nut Low-Profile Knurled with Wedged Head N/A 10-24 N/A 0.415 in N/A 0.296 in
E06012240108-BW N/A 0.13 to 0.225 Inch (in) Grip Closed End Insert Nut Low-Profile Knurled with Wedged Head N/A 10-24 N/A 0.415 in N/A 0.296 in
06644003BW-XX N/A 0.02 to 0.13 Inch (in) Grip Closed End Insert Nut Low-Profile Knurled with Wedged Head N/A 10-32 N/A 0.415 in N/A 0.296 in
06000328BW-XX N/A 0.13 to 0.225 Inch (in) Grip Closed End Insert Nut Low-Profile Knurled with Wedged Head N/A 10-32 N/A 0.415 in N/A 0.296 in
06700091-XXBW N/A 0.027 to 0.165 Inch (in) Grip Closed End Insert Nut Low-Profile Knurled with Wedged Head N/A 1/4-20 N/A 0.5 in N/A 0.39 in
06600385-XXBW N/A 0.165 to 0.26 Inch (in) Grip Closed End Insert Nut Low-Profile Knurled with Wedged Head N/A 1/4-20 N/A 0.5 in N/A 0.39 in
06641007BW-XX N/A 0.027 to 0.15 Inch (in) Grip Closed End Insert Nut Low-Profile Knurled with Wedged Head N/A 5/16-18 N/A 0.685 in N/A 0.531 in
06000351BW-XX N/A 0.15 to 0.312 Inch (in) Grip Closed End Insert Nut Low-Profile Knurled with Wedged Head N/A 5/16-18 N/A 0.686 in N/A 0.531 in
06000279-XX-114 N/A 60.027 to 0.15 Inch (in) Grip Closed End Insert Nut Low-Profile Knurled with Wedged Head N/A 3/8-16 N/A 0.687 in N/A 0.531 in
06004327-XXBW N/A 0.15 to 0.312 Inch (in) Grip Closed End Insert Nut Low-Profile Knurled with Wedged Head N/A 3/8-16 N/A 0.688 in N/A 0.531 in
06000292BW-XX N/A 0.063 to 0.2 Inch (in) Grip Closed End Insert Nut Low-Profile Knurled with Wedged Head N/A 1/2-13 N/A 0.865 in N/A 0.687 in
06000310BW-XX N/A 0.2 to 0.35 Inch (in) Grip Closed End Insert Nut Low-Profile Knurled with Wedged Head N/A 1/2-13 N/A 0.865 in N/A 0.687 in
E06012240321-BW N/A 0.28 to 0.4 Inch (in) Grip Closed End Insert Nut Low-Profile Knurled with Wedged Head N/A 1/2-13 N/A 0.865 in N/A 0.687 in
E06012240393-BW N/A 0.5 to 2 Inch (in) Grip Closed End Insert Nut Low-Profile Knurled with Wedged Head N/A M4x0.7 N/A 9.91 mm N/A 6.75 mm
E06012240411-BW N/A 2 to 3.3 Inch (in) Grip Closed End Insert Nut Low-Profile Knurled with Wedged Head N/A M4x0.7 N/A 9.91 mm N/A 6.75 mm
70000485BW-XX N/A 0.5 to 3.3 Inch (in) Grip Closed End Insert Nut Low-Profile Knurled with Wedged Head N/A M5x0.8 N/A 10.54 mm N/A 7.6 mm
E06012240447-BW N/A 3.3 to 5.7 Inch (in) Grip Closed End Insert Nut Low-Profile Knurled with Wedged Head N/A M5x0.8 N/A 10.54 mm N/A 7.6 mm
70007063-XXBW N/A 7 to 4.2 Inch (in) Grip Closed End Insert Nut Low-Profile Knurled with Wedged Head N/A M6 x 1 N/A 12.7 mm N/A 10 mm
0670000488BW-XX N/A 2 to 6.6 Inch (in) Grip Closed End Insert Nut Low-Profile Knurled with Wedged Head N/A M6 x 1 N/A 12.7 mm N/A 10 mm
06700370BW-XX N/A 0.7 to 3.8 Inch (in) Grip Closed End Insert Nut Low-Profile Knurled with Wedged Head N/A M8 x 1.25 N/A 17.4 mm N/A 13.5 mm
Unit of Measure
1 2