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Flare Mounted Spring Loaded Captive Panel Fasteners

Spring-Loaded Captive Panel Fasteners

SKU: CPF01 Categories: ,

Spring-Loaded Captive Panel Fasteners are designed for permanent mounting on thin metal sheets or panels to prevent loose hardware causing damage to an assembly. These components are available in three mounting styles:

Self-Clinching Spring-Loaded Captive Panel Fasteners:

  • Material from the panel cold flows into the self-clinch feature when squeezing force is applied using a press. Does not require extra hole preparation.
  • The retainer is made from Hardened Carbon Steel with Nickel plated finish, the knob is made from Aluminium, and the spring is made from 300 Series Stainless Steel.
  • The screw can be supplied in Hardened Carbon Steel with a Zinc plated finish, or in 400 Series Stainless Steel with a passivated finish.

Flare-Mounted Spring-Loaded Captive Panel Fasteners:

  • Suitable for installation into any panel hardness and most thin materials – including painted panels – without requiring high installation force. The mounting hole requires a countersink.
  • The screw is made from Hardened Carbon Steel with a Zinc plated finish, the retainer and knob are made from Aluminium, while the spring is made from 300 Series Stainless Steel.

Flare-Mounted, Floating Spring-Loaded Captive Panel Fasteners:

  • Suitable for installation into any panel hardness. Compensates for mating hole misalignment by allowing a small amount of float within the mounting hole.
  • The screw is made from Hardened Carbon Steel, the retainer and knob are made from Aluminium, while the spring and washer are made from 300 Series Stainless Steel.

Spring-Loaded Captive Panel Fasteners are available with a smooth or knurled head and host a slotted / Phillips Combi drive, with other drive types available on request. The screw can be supplied in a Black nitride finish, and the knob can be supplied in a Black anodized finish on request.

Available at Fastenright in thread sizes M3 to M6, with multiple screw lengths. #4 to 1/4″ Unified threads can also be supplied.

Availability

Self-Clinching and Flare-Mounted Spring-Loaded Captive Panel Fasteners Technical DrawingFlare-Mounted, Floating Spring-Loaded Captive Panel Fasteners Technical Drawing

Self-Clinching Metric

Self-Clinching Metric Technical Data & Availability
Thread Diameter M3 M3.5 M4 M5 M6
A max. (mm) 0.92 0.92 0.92 0.92 0.92
Min. Sheet
Thickness (mm)		 0.92 0.92 0.92 0.92 0.92
C max. (mm) 5.54 6.33 7.9 7.9 9.5
Sheet Hole Size (mm)
+ 0.08		 5.56 6.35 7.92 7.92 9.53
E (mm)
± 0.25		 10.59 11.43 13.06 13.06 14.61
G (mm)
± 0.64		 4.32 5.84 7.37 5.84 7.37 8.89 5.84 7.37 8.89 5.84 7.37 8.89 7.37 8.89 10.41
T1 nom. (mm) 7.87 11.43 11.43 11.43 13.46
T2 nom. (mm) 11.43 16.26 16.26 16.26 20.07
Min. Dist. Hole C/L
to Edge (mm)		 7.11 7.37 8.38 8.38 11.68

Flare-Mounted Metric

Self-Clinching Imperial UNC / UNF Technical Data & Availability
Thread Diameter 4-40 UNC 6-32 UNC 8-32 UNC 10-32 UNF 1/4″-20 UNC
A max. (in.)
 0.036 0.036 0.036 0.036 0.036
Min. Sheet
Thickness (in.)		 0.036 0.036 0.036 0.036 0.036
C max. (in.) 0.218 0.249 0.311 0.311 0.374
Sheet Hole Size (in.)
+ 0.003		 0.219 0.250 0.312 0.312 0.375
E (in.)
± 0.10		 0.417 0.450 0.514 0.514 0.575
G (in.)
± 0.25		 0.170 0.230 0.290 0.230 0.290 0.350 0.230 0.290 0.350 0.230 0.290 0.350 0.290 0.350 0.410
T1 nom. (in.) 0.310 0.450 0.450 0.450 0.530
T2 nom. (in.) 0.450 0.640 0.640 0.640 0.790
Min. Dist. Hole C/L
to Edge (in.)		 0.280 0.290 0.330 0.330 0.460

Flare-Mounted Imperial

Flare-Mounted Metric Technical Data & Availability
Thread Diameter M3 M4 M5 M6
A max. (mm) 1.05 1.83 1.83 1.83
Min. Sheet Thickness
(mm)		 0.79 1.52 1.52 1.52
C max. (mm) 4.73 6.74 6.74 8.18
Sheet Hole Size (mm)
+ 0.1		 4.75 6.76 6.76 8.2
E (mm)
± 0.25		 10.59 13.06 13.06 14.61
G (mm)
± 0.64		 4.32 5.84 7.37 5.84 7.37 8.89 5.84 7.37 8.89 7.37 8.89 10.41
T1 nom. (mm) 7.87 11.43 11.43 13.46
T2 nom. (mm) 11.43 16.26 16.26 20.07

Floating Metric

Flare-Mounted Imperial UNC / UNF Technical Data & Availability
Thread Diameter 4-40 UNC 6-32 UNC 8-32 UNC 10-32 UNF 1/4″-20 UNC
A max. (in.) 0.041 0.072 0.072 0.072 0.072
Min. Sheet Thickness
(in.)		 0.031 0.060 0.060 0.060 0.060
C max. (in.) 0.186 0.212 0.265 0.265 0.322
Sheet Hole Size (in.)
+ 0.005		 0.187 0.213 0.266 0.266 0.323
E (in.)
± 0.10		 0.417 0.450 0.514 0.514 0.575
G (in.)
± 0.25		 0.170 0.230 0.290 0.230 0.290 0.350 0.230 0.290 0.350 0.230 0.290 0.350 0.290 0.350 0.410
T1 nom. (in.) 0.310 0.450 0.450 0.450 0.530
T2 nom. (in.) 0.450 0.640 0.640 0.640 0.790

Floating Imperial

Flare-Mounted, Floating Metric Technical Data & Availability
Thread Diameter M3 M3.5 M4 M5 M6
A Max. Sheet Thickness (mm) 1.6 1.6 1.6 1.6 1.6
B min. (mm) 2.82 2.92 3.07 3.07 3.25
D Sheet Hole
Size (mm)
+ 0.08 / – 0.03		 6.35 7.19 8.79 8.79 10.49
E (mm)
± 0.25		 10.59 11.43 13.06 13.06 14.61
G nom. (mm)
 5.84 7.37 7.37 8.89 7.37 8.89 7.37 8.89 8.89 10.41
H min. (mm) 9.52 10.49 11.91 11.91 13.48
L1 nom. (mm) 3.48 3.78 3.99 3.99 3.99
L2 max. (mm) 3.23 3.23 3.56 3.56 3.56
T1 nom. (mm) 7.87 11.43 11.43 11.43 13.46
T2 nom. (mm) 11.43 16.26 16.26 16.26 20.07
Min. Total Float (mm) 1.85 1.93 1.93 1.93 2.06
W nom. (mm) 7.92 8.74 10.34 10.34 11.89

 

 

Flare-Mounted, Floating Imperial UNC / UNF Technical Data & Availability
Thread Diameter 4-40 UNC 6-32 UNC 8-32 UNC 10-32 UNF 1/4″-20 UNC
A Max. Sheet Thickness (in.) 0.063 0.063 0.063 0.063 0.063
B min. (in.) 0.111 0.115 0.121 0.121 0.128
D Sheet Hole
Size (in.)
+ 0.003 / – 0.001		 0.250 0.283 0.346 0.346 0.413
E (in.)
± 0.10		 0.417 0.450 0.514 0.514 0.575
G nom. (in.) 0.230 0.290 0.290 0.350 0.290 0.350 0.290 0.350 0.350 0.410
H min. (in.) 0.375 0.413 0.469 0.469 0.531
L1 nom. (in.) 0.137 0.149 0.157 0.157 0.157
L2 max. (in.) 0.127 0.127 0.140 0.140 0.140
T1 nom. (in.) 0.310 0.450 0.450 0.450 0.530
T2 nom. (in.) 0.450 0.640 0.640 0.640 0.790
Min. Total Float (in.) 0.073 0.076 0.076 0.076 0.081
W nom. (in.) 0.312 0.344 0.407 0.407 0.468
Self Clinching Spring Loaded Captive Panel Fasteners Flare Mounted Spring Loaded Captive Panel Fasteners Floating Spring Loaded Captive Panel Fasteners Spring Loaded Captive Panel Fasteners
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