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
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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
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Hole Depth = L + min. 2 thread pitches
inc.
Hole size
Min. wall thickness
NON-HEADED INSERT FULLY INSTALLED
HEADED INSERT FULLY INSTALLED
PRESS PUNCH PRESS PUNCH PRESS PUNCH
Punch should have polished face to allow part to rotate during installation
Material & Finish
Brass (B) Stainless Steel (A2)
Part Number Examples
Part number is made up as follows: (Type)-(Thread)-(Length)-(Material code) For example: SBI-M4-12-B (Press Stud Insert for brittle thermosetting plastics-M4-12mm long stud-brass) SHBI-M5-15-A2 (Press Stud Insert for brittle thermosetting plastics-M5-15mm long stud-stainless steel)
RoHS REACH COMPLIANT
Installation
Info
Post moulded inserts can offer significant benefits over mould-in inserts such as a reduction of in place cost, no secondary operation to clean flash residue from threads, fewer rejects due to dislodged inserts and ease of installation. Press Stud Inserts for brittle thermosetting plastics are available in a range of thread sizes and lengths in headed and non-headed variants, are manufactured from brass and stainless steel and are suitable for installation in hard thermosetting plastics by simply pressing in to a pre-prepared hole. The three helical knurl bands cut into the hole wall to lock the insert in place. This insert rotates as it is installed, so a polished punch face is recommended.
Post Moulded Press-In Stud Inserts for Thermoset Plastics
PRESS STUD INSERTS FOR BRITTLE THERMOSET PLASTICS
brass inserts for plastics
Dimensional
Thread Size
M2 x 0.4
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
M10 x 1.5
Hole Size +0.10
3.1
3.8
3.8
4.6
5.4
6.2
7.8
9.3
11.6
Min. wall thickness
1.6
2.0
2.0
2.5
2.5
2.5
2.8
3.8
5.0
H
4.8
5.5
5.5
6.4
7.1
7.9
9.5
11.1
14.0
D
3.3
4.2
4.2
5.0
5.8
6.6
8.2
9.7
12.0
A
3.0
3.7
3.7
4.5
5.3
6.1
7.7
9.3
11.5
B
0.51
0.58
0.58
0.74
0.89
1.07
1.32
1.32
1.57
L
4.1
5.3
5.3
6.3
7.4
8.3
9.2
9.2
9.2
L2
To order
To order
To order
To order
To order
To order
To order
To order
To order