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 831555 sales@npfasteners.com
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NORTHERN PRECISION LTD
Accreditations Northern Precision Ltd operate a quality management system in accordance with ISO 9001. The ISO 9001 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 831555
Tel:
Fax:
sales@npfasteners.com
Quality
Service
Reliability
Self-Clinching Fasteners Broaching Fasteners Arnold & Shinjo Fasteners Rivet Bushes Rivet Nuts Weld Fasteners Cage Nuts Blind Rivets Inserts for Plastics Inserts for Stone, Solid  Materials, Composites & Sandwich Panels Crown-Nuts Fast-Con Installation Equipment Turned & Cold Formed special parts made to order Bespoke fastener design & development Fastener & Application testing Technical support ISO 9001 RoHS|WEEE Compliance REACH Compliance Conflict minerals Environmental Policy  OUR PRODUCT RANGE  SERVICES & SUPPORT  SELF-CLINCHING Clinch Nuts Flush Nuts Blind Nuts Miniature Nuts Nyloc Nuts Locking Nuts Floating Nuts Flush Head Studs Flush Head Studs for Stainless Steel Reduced Flush Head Studs Thin Panel Non-Flush Studs High Strength Studs Thin Panel High Strength Studs Flush Head Pins Flush Head Tapered Pins Concealed Head Studs Through & Blind Standoffs Grounding Standoffs Thin Panel Standoffs Quick Release Standoffs Keylock Standoffs Concealed Head Standoffs Flush Panel Screw Assembly Panel Fasteners Phillips Head Panel Fasteners Low-Profile Panel Fasteners Plunger Assembly  Self-Clinching fastenerDoís and Doníts  Self-Clinching fastener problem solving guides  Self-Clinch in harder panels Northern Precision Ltd YouTube Channel
Material & Finish
300 Series Stainless Steel (A2) parts are suitable for installation in ductile panels with a maximum recommended hardness of 70 HRB.
Part Number Examples
Part number is made up as follows: (Type)-(Thread)-(Length)-(Material/Finish Code) For example: NCSO-M3-10-A2 (Concealed Head Standoff-1.6mm minimum panel-M3 thread-10mm long-stainless steel) NCS-M4-10-A2 (Concealed Head Standoff-2.4mm minimum panel-M4 thread-10mm long-stainless steel)
RoHS REACH COMPLIANT
Info
Self-Clinching Concealed Head Standoffs provide strong captivated female threads in panels as thin as 1.60mm. Utilising a special proven clinch feature, this fastener has excellent pull-out and torque-out characteristics. Installed into a pre-prepared milled blind hole, it leaves the underside of the panel intact. Like all self clinching fasteners they are installed using a parallel squeezing action, so require access to both sides of the panel.   Concealed Head Standoffs are available in a range of thread sizes and lengths, manufactured from 300 series stainless steel and are suitable for installation in ductile panels with a recommended maximum hardness of 70 HRB.
Dimensional
Thread Size
Type
Minimum sheet thickness
NCSO
1.60
NCS
2.40
M3 x 0.5
NCSO
1.60
NCS
2.40
M4 x 0.7
NCSO
1.60
NCS
2.40
M5 x 0.8
M6 x 1.0
NCS
2.40
S Max.
1.04
1.83
1.04
1.83
1.04
1.83
1.83
C Max.
5.39
7.90
8.72
9.89
D Max.
4.20
6.23
7.37
8.89
Blind hole Dia. +0.08 -0.0
5.41
7.92
8.74
9.90
Min. blind hole Depth
1.10
1.91
1.10
1.91
1.10
1.91
1.91
Min. CL to edge of panel
4.80
6.40
7.20
9.50
E Nom.
6.35
8.74
9.53
11.11
T Min.
5.00
6.50
9.60
9.60
NCSO
NCS
NCSO
NCS
4
6
8
10
12
16
20
25
NCSO
Type
NCS
NCS
Lengths (L) +0.05 -0.13 | Style Type
M3
M4
M5
Thread
M6
1
1
2
3
3
1
1
2
3
2
3
1 1 1
2
2
2
3
3
3
Self Clinching Concealed Head Standoffs
Type NCSO & NCS
SELF-CLINCHING CONCEALED HEAD STANDOFFS
self-clinching concealed head standoffs