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Spring-Loaded Low-Profile Knob
Slotted-Head Panel Fasteners  PF30-U,  PF31-U,  PF32-U


Self Clinching Fasteners  •  Captive Panel Screws & Hardware
American Standard (Inches) & Metric Sizes
• Self-clinching    • Low-profile    • Positive stop    • Slotted head    • Held captive to a panel
• Installed by tool or hand    • Shouldered retainer    • Installed quickly and easily
American Standard Sizes:   • Series PF30-U    • Series PF31-U    • Series PF32-U
Metric Sizes:  • Series PF31-U    • Series PF32-U
Series  PF30-U
Series  PF30-U  /  American Standard Sizes
      • Type-  Knurled Cap
      • Min. Sheet Thickness-  0.030"
      • Sheet Hardness-  HRB 60 / HB 107 or Less
      • Retainer Material-  Carbon Steel
      • Screw Material-  Heat-Treated Carbon Steel
      • Spring Material-  300 Series Stainless Steel
      • Mil-Spec-  N/A
                            STANDARD FINISH (Part Numbers with "BN")
      • Retainer Finish-  
Black Nitride
      • Screw Finish-  Black Nitride
                            OPTIONAL FINISH  (Part Numbers with "CN")
      • Retainer Finish-  
Bright nickel over copper flash per ASTM B689
      • Screw Finish-  Bright nickel over copper flash per ASTM B689
Series PF30-U
American Standard Sizes
(SAE)
Part
Number
Thread "A"
(Shank)
Max.
"C"
Max.
"E" "G"
Screw
Length
"H" "T1"
Nom.
"T2"
Nom.
Hole
in Sheet
Min.
Distance
to Edge
  PF30-440-30-BN-U 4-40 0.030" 0.202" 0.406" 0.300" 0.202" 0.325" 0.595" 0.203" 0.260"
  PF30-632-30-BN-U 6-32 0.030" 0.218" 0.438" 0.300" 0.202" 0.325" 0.595" 0.219" 0.280"
  PF30-832-30-BN-U 8-32 0.030" 0.249" 0.468" 0.300" 0.207" 0.330" 0.600" 0.250" 0.290"
  PF30-032-30-BN-U 10-32 0.030" 0.311" 0.530" 0.300" 0.220" 0.335" 0.605" 0.312" 0.330"
 
  PF30-440-30-CN-U 4-40 0.030" 0.202" 0.406" 0.300" 0.202" 0.325" 0.595" 0.203" 0.260"
  PF30-632-30-CN-U 6-32 0.030" 0.218" 0.438" 0.300" 0.202" 0.325" 0.595" 0.219" 0.280"
  PF30-832-30-CN-U 8-32 0.030" 0.249" 0.468" 0.300" 0.207" 0.330" 0.600" 0.250" 0.290"
  PF30-032-30-CN-U 10-32 0.030" 0.311" 0.530" 0.300" 0.220" 0.335" 0.605" 0.312" 0.330"
Series PF31-U
Series  PF31-U  /  American Standard Sizes
      • Type-  Knurled Cap
      • Min. Sheet Thickness-  0.040"
      • Sheet Hardness-  HRB 60 / HB 107 or Less
      • Retainer Material-  Carbon Steel
      • Screw Material-  Heat-Treated Carbon Steel
      • Spring Material-  300 Series Stainless Steel
      • Mil-Spec-  N/A
                            STANDARD FINISH (Part Numbers with "BN")
      • Retainer Finish-  
Black Nitride
      • Screw Finish-  Black Nitride
                            OPTIONAL FINISH  (Part Numbers with "CN")
      • Retainer Finish-  
Bright nickel over copper flash per ASTM B689
      • Screw Finish-  Bright nickel over copper flash per ASTM B689
Series PF31-U
American Standard Sizes
(SAE)
Part
Number
Thread "A"
(Shank)
Max.
"C"
Max.
"E" "G"
Screw
Length
"H" "T1"
Nom.
"T2"
Nom.
Hole
in Sheet
Min.
Distance
to Edge
  PF31-440-30-BN-U 4-40 0.038" 0.202" 0.406" 0.300" 0.202" 0.325" 0.595" 0.203" 0.260"
  PF31-632-30-BN-U 6-32 0.038" 0.218" 0.438" 0.300" 0.202" 0.325" 0.595" 0.219" 0.280"
  PF31-832-30-BN-U 8-32 0.038" 0.249" 0.468" 0.300" 0.207" 0.330" 0.600" 0.250" 0.290"
  PF31-032-30-BN-U 10-32 0.038" 0.311" 0.530" 0.300" 0.220" 0.335" 0.605" 0.312" 0.330"
 
  PF31-440-30-CN-U 4-40 0.038" 0.202" 0.406" 0.300" 0.202" 0.325" 0.595" 0.203" 0.260"
  PF31-632-30-CN-U 6-32 0.038" 0.218" 0.438" 0.300" 0.202" 0.325" 0.595" 0.219" 0.280"
  PF31-832-30-CN-U 8-32 0.038" 0.249" 0.468" 0.300" 0.207" 0.330" 0.600" 0.250" 0.290"
  PF31-032-30-CN-U 10-32 0.038" 0.311" 0.530" 0.300" 0.220" 0.335" 0.605" 0.312" 0.330"
Series  PF31-U  /  Metric Sizes
      • Type-  Knurled Cap
      • Min. Sheet Thickness-  1.00 mm
      • Sheet Hardness-  HRB 60 / HB 107 or Less
      • Retainer Material-  Carbon Steel
      • Screw Material-  Heat-Treated Carbon Steel
      • Spring Material-  300 Series Stainless Steel
      • Mil-Spec-  N/A
                            STANDARD FINISH  (Part Numbers with "BN")
      • Retainer Finish-  
Black Nitride
      • Screw Finish-  Black Nitride
                            OPTIONAL FINISH  (Part Numbers with "CN")
      • Retainer Finish-  
Bright nickel over copper flash per ASTM B689
      • Screw Finish-  Bright nickel over copper flash per ASTM B689
Series PF31-U
Metric Sizes
Part
Number
Thread "A"
(Shank)
Max.
"C"
Max.
"E" "G"
Screw
Length
"H" "T1"
Nom.
"T2"
Nom.
Hole
in Sheet
Min.
Distance
to Edge
  PF31-M3-30-BN-U M3 x 0.5 0.97
mm
5.48
mm
10.31
mm
7.62
mm
5.13
mm
8.26
mm
15.11
mm
5.50
mm
6.60
mm
  PF31-M4-30-BN-U M4 x 0.7 0.97
mm
6.38
mm
11.89
mm
7.62
mm
5.26
mm
8.38
mm
15.24
mm
6.40
mm
7.37
mm
  PF31-M5-30-BN-U M5 x 0.8 0.97
mm
7.98
mm
13.46
mm
7.62
mm
5.59
mm
8.51
mm
15.37
mm
8.00
mm
8.38
mm
 
  PF31-M3-30-CN-U M3 x 0.5 0.97
mm
5.48
mm
10.31
mm
7.62
mm
5.13
mm
8.26
mm
15.11
mm
5.50
mm
6.60
mm
  PF31-M4-30-CN-U M4 x 0.7 0.97
mm
6.38
mm
11.89
mm
7.62
mm
5.26
mm
8.38
mm
15.24
mm
6.40
mm
7.37
mm
  PF31-M5-30-CN-U M5 x 0.8 0.97
mm
7.98
mm
13.46
mm
7.62
mm
5.59
mm
8.51
mm
15.37
mm
8.00
mm
8.38
mm
Series PF32-U
Series  PF32-U  /  American Standard Sizes
      • Type-  Knurled Cap
      • Min. Sheet Thickness-  0.060"
      • Sheet Hardness-  HRB 60 / HB 107 or Less
      • Retainer Material-  Carbon Steel
      • Screw Material-  Heat-Treated Carbon Steel
      • Spring Material-  300 Series Stainless Steel
      • Mil-Spec-  N/A
                            STANDARD FINISH  (Part Numbers with "BN")
      • Retainer Finish-  
Black Nitride
      • Screw Finish-  Black Nitride
                            OPTIONAL FINISH  (Part Numbers with "CN")
      • Retainer Finish-  
Bright nickel over copper flash per ASTM B689
      • Screw Finish-  Bright nickel over copper flash per ASTM B689
Series PF32-U
American Standard Sizes
(SAE)
Part
Number
Thread "A"
(Shank)
Max.
"C"
Max.
"E" "G"
Screw
Length
"H" "T1"
Nom.
"T2"
Nom.
Hole
in Sheet
Min.
Distance
to Edge
  PF32-440-30-BN-U 4-40 0.058" 0.202" 0.406" 0.300" 0.202" 0.325" 0.595" 0.203" 0.260"
  PF32-632-30-BN-U 6-32 0.058" 0.218" 0.438" 0.300" 0.202" 0.325" 0.595" 0.219" 0.280"
  PF32-832-30-BN-U 8-32 0.058" 0.249" 0.468" 0.300" 0.207" 0.330" 0.600" 0.250" 0.290"
  PF32-032-30-BN-U 10-32 0.058" 0.311" 0.530" 0.300" 0.220" 0.335" 0.605" 0.312" 0.330"
  PF32-0420-35-BN-U 1/4-20 0.058" 0.374" 0.625" 0.350" 0.242" 0.385" 0.675" 0.375" 0.380"
 
  PF32-440-30-CN-U 4-40 0.058" 0.202" 0.406" 0.300" 0.202" 0.325" 0.595" 0.203" 0.260"
  PF32-632-30-CN-U 6-32 0.058" 0.218" 0.438" 0.300" 0.202" 0.325" 0.595" 0.219" 0.280"
  PF32-832-30-CN-U 8-32 0.058" 0.249" 0.468" 0.300" 0.207" 0.330" 0.600" 0.250" 0.290"
  PF32-032-30-CN-U 10-32 0.058" 0.311" 0.530" 0.300" 0.220" 0.335" 0.605" 0.312" 0.330"
  PF32-0420-35-CN-U 1/4-20 0.058" 0.374" 0.625" 0.350" 0.242" 0.385" 0.675" 0.375" 0.380"
Series  PF32-U  /  Metric Sizes
      • Type-  Knurled Cap
      • Min. Sheet Thickness-  1.50 mm
      • Sheet Hardness-  HRB 60 / HB 107 or Less
      • Retainer Material-  Carbon Steel
      • Screw Material-  Heat-Treated Carbon Steel
      • Spring Material-  300 Series Stainless Steel
      • Mil-Spec-  N/A
                            STANDARD FINISH  (Part Numbers with "BN")
      • Retainer Finish-  
Black Nitride
      • Screw Finish-  Black Nitride
                            OPTIONAL FINISH  (Part Numbers with "CN")
      • Retainer Finish-  
Bright nickel over copper flash per ASTM B689
      • Screw Finish-  Bright nickel over copper flash per ASTM B689
Series PF32-U
Metric Sizes
Part
Number
Thread "A"
(Shank)
Max.
"C"
Max.
"E" "G"
Screw
Length
"H" "T1"
Nom.
"T2"
Nom.
Hole
in Sheet
Min.
Distance
to Edge
  PF32-M3-30-BN-U M3 x 0.5 1.48
mm
5.48
mm
10.31
mm
7.62
mm
5.13
mm
8.26
mm
15.11
mm
5.50
mm
6.60
mm
  PF32-M4-30-BN-U M4 x 0.7 1.48
mm
6.38
mm
11.89
mm
7.62
mm
5.26
mm
8.38
mm
15.24
mm
6.40
mm
7.37
mm
  PF32-M5-30-BN-U M5 x 0.8 1.48
mm
7.98
mm
13.46
mm
7.62
mm
5.59
mm
8.51
mm
15.37
mm
8.00
mm
8.38
mm
  PF32-M6-30-BN-U M6 x 10 1.48
mm
9.48
mm
15.88
mm
8.89
mm
6.12
mm
9.78
mm
17.15
mm
9.50
mm
9.65
mm
 
  PF32-M3-30-CN-U M3 x 0.5 1.48
mm
5.48
mm
10.31
mm
7.62
mm
5.13
mm
8.26
mm
15.11
mm
5.50
mm
6.60
mm
  PF32-M4-30-CN-U M4 x 0.7 1.48
mm
6.38
mm
11.89
mm
7.62
mm
5.26
mm
8.38
mm
15.24
mm
6.40
mm
7.37
mm
  PF32-M5-30-CN-U M5 x 0.8 1.48
mm
7.98
mm
13.46
mm
7.62
mm
5.59
mm
8.51
mm
15.37
mm
8.00
mm
8.38
mm
  PF32-M6-30-CN-U M6 x 10 1.48
mm
9.48
mm
15.88
mm
8.89
mm
6.12
mm
9.78
mm
17.15
mm
9.50
mm
9.65
mm

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


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Mailing Address:  P.O. Box 280,  Orange,  New Jersey  07051-0280  USA

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