NP
Contact us You can contact us using any of the methods below. Unit 3 Durham Lane Armthorpe Doncaster South Yorkshire DN3 3FE England +44 (0)1302 836010 +44 (0)1302 836012 sales@npfasteners.com
All rights reserved © Northern Precision Ltd.
NORTHERN PRECISION LTD
Accreditations Northern Precision Ltd operate a quality management system in accordance with ISO 9001:2008. The ISO 9001:2008 standard is recognised worldwide and you can be assured of the benefits of working with a certified company knowing that our management systems are constantly assessed and improved.
Registered in England & Wales Company number 3275391
V.A.T Registration number GB 684 1384 17
NP
NORTHERN PRECISION LTD
Specialist Fasteners for Sheet Metal
+44 (0) 1302 836010
+44 (0) 1302 836012
Tel:
Fax:
sales@npfasteners.com
Quality
Service
Reliability
Northern Precision Ltd YouTube Channel
Material & Finish
Flush Mounted Panel Screw 300 Series Stainless Steel (A2). Self-Clinching Flush Mounted Retainer 300 Series Stainless Steel (A2) parts are suitable for installation in ductile panels with a maximum recommended hardness of 70 HRB. Self-Clinching Receptacle Nut Electro Zinc plated Carbon Steel (ZI) parts are suitable for installation in ductile panels with a maximum recommended hardness of 80 HRB.
Part Number Examples
Flush Mounted Panel Screw Part number is made up as follows: (Type)-(Thread)-(Screw Length Code)-(Material/Finish) For example: NP10-M3-40-A2 (Flush Mounted Panel Screw-M3-Screw Length Code 40- stainless steel) Self-Clinching Flush Mounted Retainer Part number is made up as follows: (Type)-(Thread)-(Material/Finish) For example: NR-M4-A2 (Self Clinching Flush Mounted Retainer-M4-stainless steel) Self-Clinching Receptacle Nut Part number is made up as follows: (Type)-(Thread)-(Minimum Panel)-(Material/Finish) For example: NRN-M5-1-ZI (Self Clinching Receptacle Nut-M5-1mm minimum panel thickness-electro-zinc plated steel)
RoHS REACH COMPLIANT
Info
Self-Clinching Panel Screw Assemblies utilise a self-clinching Retainer (NR) to allow a Panel Screw (NP10) to be flush mounted in thin sheet metal panels, while remaining captive in the retainer when disengaged from the mating component. A self-clinching Receptacle Nut (NRN) is used in the mating component. Like all self-clinching fasteners, the retainer and receptacle components are installed using a parallel squeezing action, so require access to both sides of the panel.   Panel Screws are manufactured from 300 series stainless steel. Self-clinching Retainers are manufactured from 300 series stainless steel and are suitable for installation in ductile panels with a recommended maximum hardness of 70 HRB. Self-Clinching Receptacle Nuts are manufactured from electro-zinc plated carbon steel and are suitable for installation in ductile panels with a recommended maximum hardness of 80 HRB.
Dimensional
3.30
B Nom.
7.11
C Ref.
10.16
D ±0.25
4.06
A Ref.
1.00
F Min.
3.18
E ±0.25
Flush Mounted Captive Panel Screw Assembly
NP10 Flush Mounted Captive Panel Screw
Thread Size
M5 x 0.8
M4 x 0.7
M3 x 0.5
T Nom.
3.30
3.30
3.30
H +0.05 -0.15
1.91
1.91
1.91
Screw Length Code
40
40
40
E Nom.
7.10
6.30
4.70
8.38
L ±0.25
8.38
8.38
NR Flush Mounted Captive Retainer
Thread Size
M5 x 0.8
M4 x 0.7
M3 x 0.5
H Nom.
1.91
1.91
1.91
Min. Panel
1.27(1) 3.18(2)
1.27(1) 3.18(2)
1.27(1) 3.18(2)
A Max.
3.18
3.18
3.18
9.14
Min. CL to edge
8.64
7.78
Hole Size +0.08
9.53
8.74
7.14
E Nom.
10.41
9.53
7.87
C Max.
9.50
8.72
7.12
B Nom.
7.37
6.48
4.75
NRN Flush Mounted Captive Receptacle Nut
Thread Size
M5 x 0.8
M4 x 0.7
M3 x 0.5
H Nom.
5.41
4.75
3.20
A Max.
0.97
0.97
0.97
7.87
Min. CL to edge
7.11
5.59
Hole Size +0.08
7.04
6.35
4.75
F ±0.25
3.30
3.30
3.30
E Nom.
9.53
8.64
7.11
C Max.
7.01
6.33
4.73
Min. Panel
1.00
1.00
1.00
T ±0.13
6.00
6.00
6.00
Self Clinching Panel Screw Assembly Components
Types NP10 | NR | NRN
SELF-CLINCHING PANEL SCREW ASSEMBLY
self-clinching panel screws Flush Mounted Panel Screw Self Clinching Flush Mounted Captive Retainer Self Clinching Receptacle Nut
(1) Absolute minimum panel thickness. (2) Minimum panel thickness for flush finish.