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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.
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Regulatory RoHS|WEEE Compliance REACH Compliance Conflict minerals statement Environmental Policy Opening Hours Mon - Fri 08:00 - 17:00
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NP
NORTHERN PRECISION LTD
Specialist Fasteners for Sheet Metal
+44 (0) 1302 836010
+44 (0) 1302 831555
Tel:
Fax:
sales@npfasteners.com
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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 fastener Do’s and Don’ts Self-Clinching fastener problem solving guides Self-Clinch in harder panels
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Material & Finish
Electro Zinc Plated Carbon Steel (ZI) parts are suitable for installation in ductile panels with a maximum recommended hardness of 80 HRB. 300 Series Stainless Steel (A2) parts are suitable for installation in ductile panels with a maximum recommended hardness of 70 HRB. Aluminium (AL) parts are suitable for installation in ductile panels with a maximum recommended hardness of 50 HRB.
Part Number Examples
Part number is made up as follows: (Type)-(Thread)-(Length)-(Material/Finish code) For example: NFH-M3-10-ZI (Flush Head Stud-M3-10mm long-electro zinc plated carbon steel) NFH-M4-12-A2 (Flush Head Stud-M4-12mm long-stainless steel) NFH-M6-20-AL (Flush Head Stud-M6-20mm long-aluminium) Use part designation NFHD to specify a dog-point thread lead-in (special order).
RoHS REACH COMPLIANT
Info
Self-Clinching Flush Head Studs provide strong reusable captivated male threads in thin panels. Utilising a special proven castellated clinch feature, this fastener has excellent torque-out, pull-through and push- out characteristics whilst providing a flush finish on the underside of the panel, meaning that minimal surface finishing is required after installation. Like all self clinching fasteners they are installed using a parallel squeezing action, so require access to both sides of the panel.   Flush Head Studs are available in a range of thread sizes and lengths, manufactured from electro zinc plated steel, 300 stainless steel and aluminium and are suitable for installation in ductile steel and aluminium panels with a recommended maximum hardness of 80 HRB for steel parts, 70 HRB for 300 series stainless steel parts and 50 HRB for aluminium parts. Flush Head Studs can also be supplied with a dog-point thread lead-in to aid component assembly.
Installation Guide and Performance Data Downloadable Data Sheet Back
Dimensional
Thread size
D ±0.40
Maximum mating hole
H Max.
Min. sheet thickness
Min CL to edge of panel
1.95
5.40
M2.5 x 0.45
Hole size +0.08 -0.0
3.10
4.10
1.00
2.50
2.10
5.60
M3 x 0.5
3.60
4.60
1.00
3.00
2.25
6.40
M3.5 x 0.6
4.10
5.30
1.00
3.50
2.40
7.20
M4 x 0.7
4.60
5.90
1.00
4.00
2.70
7.20
M5 x 0.8
5.60
6.50
1.00
5.00
3.00
7.90
M6 x 1.0
6.60
8.20
1.60
6.00
3.70
9.60
M8 x 1.25
8.60
9.60
2.40
8.00
Thread size
Lengths (L) ±0.40
M2.5 x 0.45
M3 x 0.5
M3.5 x 0.6
M4 x 0.7
M5 x 0.8
M6 x 1.0
M8 x 1.25
6
6
6
6
-
-
-
8
8
8
8
8
-
-
10
10
10
10
10
10
10
12
12
12
12
12
12
12
15
15
15
15
15
15
15
-
18
18
18
18
18
18
-
20
20
20
20
20
20
-
-
22
22
22
22
22
-
-
-
25
25
25
25
-
-
-
-
28
28
28
-
-
-
-
-
30
30
-
-
-
-
-
35
35
-
-
-
-
-
-
38
Self Clinching Flush Head Studs
Type NFH
SELF-CLINCHING FLUSH HEAD STUDS
self-clinching flush head studs