Phillips Spring-Loaded Captive Panel Fasteners

Phillips Spring-Loaded Captive Panel Fasteners are designed to equip panels and thin sheet metal with fastening hardware. They feature a knurled head for improved operation by hand, as well as a Phillips drive recess for installation with a standard Phillips screwdriver.

These components host a small footprint and are often used for applications with limited access as a result. They can be supplied in two different types:

Self-Clinching Phillips Spring-Loaded Captive Panel Fasteners:

This type does not require special hole preparation. It hosts high pushout resistance for a secure fixing.
The screw is made from Hardened Carbon Steel with a Nickel plated finish, while the retainer is made from Carbon Steel with a Nickel plated finish.
For use in sheet hardness HRB 60 or less in the Rockwell B scale, or HB 107 or less in the Brinell scale.

Flare-Mounted Phillips Spring-Loaded Captive Panel Fasteners:

This type does not require high installation force. It is suitable for close centreline-to-edge applications.
The screw is made from Hardened Carbon Steel with a Nickel plated finish, while the retainer is made from Aluminium.
Installs into any panel hardness.

Available at Fastenright in thread sizes M3 and M4 with two screw lengths. #4 to #8 Unified threads can also be supplied.

Self-Clinching Imperial

Self-Clinching Metric Technical Data & Availability
Thread Diameter	M3		M4
A max. (mm)	0.92		0.92
Min. Sheet Thickness (mm)	0.92		0.92
C max. (mm)	5.54		7.9
Sheet Hole Size (mm) + 0.08	5.56		7.92
E (mm) ± 0.25	7.87		10.29
G (mm) ± 0.64	5.33	6.86	6.1	7.62
H (mm) ± 0.25	2.5		3
P (mm) ± 0.64	0	1.65	0	1.65
T1 nom. (mm)	9.65		10.92
T2 nom. (mm)	13.97		16
Min. Dist. Hole C/L to Edge (mm)	7.11		8.38

Flare-Mounted Metric

Self-Clinching Imperial UNC Technical Data & Availability
Thread Diameter	4-40 UNC		6-32 UNC		8-32 UNC
A max. (in.)	0.036		0.036		0.036
Min. Sheet Thickness (in.)	0.036		0.036		0.036
C max. (in.)	0.218		0.249		0.311
Sheet Hole Size (in.) + 0.003	0.219		0.250		0.312
E (in.) ± 0.010	0.310		0.342		0.405
G (in.) ± 0.025	0.210	0.270	0.240	0.300	0.240	0.300
H (in.) ± 0.010	0.100		0.100		0.120
P (in.) ± 0.025	0	0.065	0	0.065	0	0.065
T1 nom. (in.)	0.380		0.410		0.430
T2 nom. (in.)	0.550		0.610		0.630
Min. Dist. Hole C/L to Edge (in.)	0.280		0.290		0.330

Flare-Mounted Imperial

Flare-Mounted Metric Technical Data & Availability
Thread Diameter	M3		M4
A max. (mm)	1.05		1.83
Min. Sheet Thickness (mm)	0.79		1.52
C max. (mm)	4.73		6.74
Sheet Hole Size (mm) + 0.13	4.75		6.76
E (mm) ± 0.25	7.87		10.29
G1 (mm) ± 0.64	1.02	2.54	1.02	2.54
H (mm) ± 0.25	2.5		3
G2 (mm) ± 0.64	5.33	6.86	6.1	7.62
T1 nom. (mm)	9.65		10.92
T2 nom. (mm)	13.97		16

Flare-Mounted Imperial UNC Technical Data & Availability
Thread Diameter	4-40 UNC		6-32 UNC		8-32 UNC
A max. (in.)	0.041		0.072		0.072
Min. Sheet Thickness (in.)	0.031		0.060		0.060
C max. (in.)	0.186		0.212		0.265
Sheet Hole Size (in.) + 0.005	0.187		0.213		0.266
E (in.) ± 0.010	0.310		0.342		0.405
G1 (in.) ± 0.025	0.040	0.100	0.040	0.100	0.040	0.100
H (in.) ± 0.010	0.100		0.100		0.120
G2 (in.) ± 0.025	0.210	0.270	0.240	0.300	0.240	0.300
T1 nom. (in.)	0.380		0.410		0.430
T2 nom. (in.)	0.550		0.610		0.630