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Floating Clinch Nuts  AS-U,  AC-U,  A4-U

Self Clinching Fasteners  •  Nuts For Sheet Metal
American Standard (Inches) & Metric Sizes
• Self-clinching     • Load bearing threads     • Non-locking threads
• Installed quickly and easily by squeezing into prepared holes     • Sheet is flush     • Fastener is permanently installed
• Offsets mating hole misalignments to 0.030"/ 0.8 mm
American Standard Sizes:   • Series AS-U    • Series AC-U    • Series A4-U
Metric Sizes:   • Series AS-U    • Series AC-U    • Series A4-U
Series  AS-U
Series  AS-U  /  American Standard Sizes
      • Shape-  Round
      • Thread Type-  Non-Locking
      • Float-  0.015" min. in all directions from center, 0.030" total
      • Sheet Hardness-  HRB 70 / HB 125 or Less
      • Fastener Material-  Steel
      • Fastener Materials- Retainer-  Heat-Treated Carbon Steel
      • Fastener Materials- Nut-  Carbon Steel
      • Finish- Retainer& Nut-  Zinc Clear Plated per ASTM B633
Series AS_U
American Standard Sizes
(SAE)
Part
Number
Thread "A"
(Shank)
Max.
Min.
Sheet
Thickness
Hole
Size in
Sheet
"C"
Max.
"D"
Max.
"E" "T1"
Max.
Min.
Distance
to Edge
Mil-Spec
AS-440-1ZI 4-40 0.038" 0.038" 0.290" 0.289" 0.290" 0.360" 0.130" 0.300" M45938/11-1Z
AS-632-1ZI 6-32 0.038" 0.038" 0.328" 0.327" 0.335" 0.390" 0.130" 0.320" M45938/11-3Z
AS-832-1ZI 8-32 0.038" 0.038" 0.368" 0.367" 0.365" 0.440" 0.130" 0.340" M45938/11-5Z
AS-024-1ZI 10-24 0.038" 0.038" 0.406" 0.405" 0.405" 0.470" 0.170" 0.360" M45938/11-7Z
AS-032-1ZI 10-32 0.038" 0.038" 0.406" 0.405" 0.405" 0.470" 0.170" 0.360" M45938/11-9Z
 
AS-440-2ZI 4-40 0.054" 0.054" 0.290" 0.289" 0.290" 0.360" 0.130" 0.300" M45938/11-2Z
AS-632-2ZI 6-32 0.054" 0.054" 0.328" 0.327" 0.335" 0.390" 0.130" 0.320" M45938/11-4Z
AS-832-2ZI 8-32 0.054" 0.054" 0.368" 0.367" 0.365" 0.440" 0.130" 0.340" M45938/11-6Z
AS-024-2ZI 10-24 0.054" 0.054" 0.406" 0.405" 0.405" 0.470" 0.170" 0.360" M45938/11-8Z
AS-032-2ZI 10-32 0.054" 0.054" 0.406" 0.405" 0.405" 0.470" 0.170" 0.360" M45938/11-10Z
AS-0420-2ZI 1/4-20 0.054" 0.054" 0.515" 0.514" 0.510" 0.600" 0.210" 0.420" M45938/11-11Z
AS-0428-2ZI 1/4-28 0.054" 0.054" 0.515" 0.514" 0.510" 0.600" 0.210" 0.420" M45938/11-12Z
Series  AS-U  /  Metric Sizes
      • Shape-  Round
      • Thread Type-  Non-Locking
      • Float-  0.38 mm min. in all directions from center, 0.76 mm total
      • Sheet Hardness-  HRB 70 / HB 125 or Less
      • Fastener Material-  Steel
      • Fastener Materials- Retainer-  Heat-Treated Carbon Steel
      • Fastener Materials- Nut-  Carbon Steel
      • Finish- Retainer & Nut-  Zinc Clear Plated per ASTM B633
Series AS-U
Metric Sizes
Part
Number
Thread "A"
(Shank)
Max.
Min.
Sheet
Thickness
Hole
Size in
Sheet
"C"
Max.
"D"
Max.
"E" "T1"
Max.
Min.
Distance
to Edge
Mil-Spec
AS-M3-1ZI M3 x 0.5 0.97
mm
0.97
mm
7.37
mm
7.35
mm
7.37
mm
9.14
mm
3.31
mm
7.62
mm
N/A
AS-M4-1ZI M4 x 0.7 0.97
mm
0.97
mm
9.35
mm
9.33
mm
9.28
mm
11.18
mm
3.31
mm
8.64
mm
N/A
AS-M5-1ZI M5 x 0.8 0.97
mm
0.97
mm
10.31
mm
10.29
mm
10.29
mm
11.94
mm
4.32
mm
9.14
mm
N/A
 
AS-M3-2ZI M3 x 0.5 1.38
mm
1.38
mm
7.37
mm
7.35
mm
7.37
mm
9.14
mm
3.31
mm
7.62
mm
N/A
AS-M4-2ZI M4 x 0.7 1.38
mm
1.38
mm
9.35
mm
9.33
mm
9.28
mm
11.18
mm
3.31
mm
8.64
mm
N/A
AS-M5-2ZI M5 x 0.8 1.38
mm
1.38
mm
10.31
mm
10.29
mm
10.29
mm
11.94
mm
4.32
mm
9.14
mm
N/A
AS-M6-2ZI M6 x 1.0 1.38
mm
1.38
mm
13.08
mm
13.06
mm
12.96
mm
15.24
mm
5.34
mm
10.67
mm
N/A
Series  AC-U
Series  AC-U  /  American Standard Sizes
      • Shape-  Round
      • Thread Type-  Non-Locking
      • Float-  0.015" min. in all directions from center, 0.030" total
      • Sheet Hardness-  HRB 70 / HB 125 or Less
      • Fastener Material-  300 Series Stainless Steel
      • Fastener Materials- Retainer-  300 Series Stainless Steel
      • Fastener Materials- Nut-  300 Series Stainless Steel
      • Finish- Retainer & Nut-  Passivated per ASTM A380
Series AC-U
American Standard Sizes
(SAE)
Part
Number
Thread "A"
(Shank)
Max.
Min.
Sheet
Thickness
Hole
Size in
Sheet
"C"
Max.
"D"
Max.
"E" "T1"
Max.
Min.
Distance
to Edge
Mil-Spec
AC-440-1 4-40 0.038" 0.038" 0.290" 0.289" 0.290" 0.360" 0.130" 0.300" M45938/11-1C
AC-632-1 6-32 0.038" 0.038" 0.328" 0.327" 0.335" 0.390" 0.130" 0.320" M45938/11-3C
AC-832-1 8-32 0.038" 0.038" 0.368" 0.367" 0.365" 0.440" 0.130" 0.340" M45938/11-5C
AC-024-1 10-24 0.038" 0.038" 0.406" 0.405" 0.405" 0.470" 0.170" 0.360" M45938/11-7C
AC-032-1 10-32 0.038" 0.038" 0.406" 0.405" 0.405" 0.470" 0.170" 0.360" M45938/11-9C
 
AC-440-2 4-40 0.054" 0.054" 0.290" 0.289" 0.290" 0.360" 0.130" 0.300" M45938/11-2C
AC-632-2 6-32 0.054" 0.054" 0.328" 0.327" 0.335" 0.390" 0.130" 0.320" M45938/11-4C
AC-832-2 8-32 0.054" 0.054" 0.368" 0.367" 0.365" 0.440" 0.130" 0.340" M45938/11-6C
AC-024-2 10-24 0.054" 0.054" 0.406" 0.405" 0.405" 0.470" 0.170" 0.360" M45938/11-8C
AC-032-2 10-32 0.054" 0.054" 0.406" 0.405" 0.405" 0.470" 0.170" 0.360" M45938/11-10C
AC-0420-2 1/4-20 0.054" 0.054" 0.515" 0.514" 0.510" 0.600" 0.210" 0.420" M45938/11-11C
AC-0428-2 1/4-28 0.054" 0.054" 0.515" 0.514" 0.510" 0.600" 0.210" 0.420" M45938/11-12C
Series  AC-U  /  Metric Sizes
      • Shape-  Round
      • Thread Type-  Non-Locking
      • Float-  0.38 mm min. in all directions from center, 0.76 mm total
      • Sheet Hardness-  HRB 70 / HB 125 or Less
      • Fastener Material-  300 Series Stainless Steel
      • Fastener Materials- Retainer-  300 Series Stainless Steel
      • Fastener Materials- Nut-  300 Series Stainless Steel
      • Finish- Retainer & Nut-  Passivated per ASTM A380
Series AC-U
Metric Sizes
Part
Number
Thread "A"
(Shank)
Max.
Min.
Sheet
Thickness
Hole
Size in
Sheet
"C"
Max.
"D"
Max.
"E" "T1"
Max.
Min.
Distance
to Edge
Mil-Spec
AC-M3-1 M3 x 0.5 0.97
mm
0.97
mm
7.37
mm
7.35
mm
7.37
mm
9.14
mm
3.31
mm
7.62
mm
N/A
AC-M4-1 M4 x 0.7 0.97
mm
0.97
mm
9.35
mm
9.33
mm
9.28
mm
11.18
mm
3.31
mm
8.64
mm
N/A
AC-M5-1 M5 x 0.8 0.97
mm
0.97
mm
10.31
mm
10.29
mm
10.29
mm
11.94
mm
4.32
mm
9.14
mm
N/A
 
AC-M3-2 M3 x 0.5 1.38
mm
1.38
mm
7.37
mm
7.35
mm
7.37
mm
9.14
mm
3.31
mm
7.62
mm
N/A
AC-M4-2 M4 x 0.7 1.38
mm
1.38
mm
9.35
mm
9.33
mm
9.28
mm
11.18
mm
3.31
mm
8.64
mm
N/A
AC-M5-2 M5 x 0.8 1.38
mm
1.38
mm
10.31
mm
10.29
mm
10.29
mm
11.94
mm
4.32
mm
9.14
mm
N/A
AC-M6-2 M6 x 1.0 1.38
mm
1.38
mm
13.08
mm
13.06
mm
12.96
mm
15.24
mm
5.34
mm
10.67
mm
N/A
Series  A4-U
Series  A4-U  /  American Standard Sizes
      • Shape-  Round
      • Thread Type-  Non-Locking
      • Float-  0.015" min. in all directions from center, 0.030" total
      • Sheet Hardness-  HRB 88 / HB 183 or Less
      • Fastener Material-  400 Series Stainless Steel
      • Fastener Materials- Retainer-  400 Series Stainless Steel
      • Fastener Materials- Nut-  300 Series Stainless Steel
      • Finish- Retainer & Nut-  Passivated per ASTM A380
Series A4-U
American Standard Sizes
(SAE)
Part
Number
Thread "A"
(Shank)
Max.
Min.
Sheet
Thickness
Hole
Size in
Sheet
"C"
Max.
"D"
Max.
"E" "T1"
Max.
Min.
Distance
to Edge
Mil-Spec
A4-440-1 4-40 0.038" 0.038" 0.290" 0.289" 0.290" 0.360" 0.130" 0.300" N/A
A4-632-1 6-32 0.038" 0.038" 0.328" 0.327" 0.335" 0.390" 0.130" 0.320" N/A
A4-832-1 8-32 0.038" 0.038" 0.368" 0.367" 0.365" 0.440" 0.130" 0.340" N/A
A4-032-1 10-32 0.038" 0.038" 0.406" 0.405" 0.405" 0.470" 0.170" 0.360" N/A
Series  A4-U  /  Metric Sizes
      • Shape-  Round
      • Thread Type-  Non-Locking
      • Float-  0.38 mm min. in all directions from center, 0.76 mm total
      • Sheet Hardness-  HRB 88 / HB 183 or Less
      • Fastener Material-  400 Series Stainless Steel
      • Fastener Materials- Retainer-  400 Series Stainless Steel
      • Fastener Materials- Nut-  300 Series Stainless Steel
      • Finish- Retainer & Nut-  Passivated per ASTM A380
Series A4-U
Metric Sizes
Part
Number
Thread "A"
(Shank)
Max.
Min.
Sheet
Thickness
Hole
Size in
Sheet
"C"
Max.
"D"
Max.
"E" "T1"
Max.
Min.
Distance
to Edge
Mil-Spec
A4-M3-1 M3 x 0.5 0.97
mm
0.97
mm
7.37
mm
7.35
mm
7.37
mm
9.14
mm
3.31
mm
7.62
mm
N/A
A4-M4-1 M4 x 0.7 0.97
mm
0.97
mm
9.35
mm
9.33
mm
9.28
mm
11.18
mm
3.31
mm
8.64
mm
N/A
A4-M5-1 M5 x 0.8 0.97
mm
0.97
mm
10.31
mm
10.29
mm
10.29
mm
11.94
mm
4.32
mm
9.14
mm
N/A

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electronic hardware, handles and precision fasteners used by leading companies
in nearly every industry since 1971.


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