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
All rights reserved
© Northern Precision Ltd.
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.
Regulatory
RoHS|WEEE Compliance
REACH Compliance
Conflict minerals
statement
Environmental Policy
Opening Hours
Mon - Fri 08:00 - 17:00
Registered in England & Wales
Company number 3275391
V.A.T Registration number
GB 684 1384 17
NORTHERN PRECISION LTD
Specialist Fasteners
for Sheet Metal
+44 (0) 1302 836010
+44 (0) 1302 831555
Tel:
Fax:
sales@npfasteners.com
Quality
Service
Reliability
Hole Depth = L
+ min. 2 thread
pitches
1°
inc.
Hole
size
Min. wall
thickness
NON-HEADED INSERT
FULLY INSTALLED
HEADED INSERT
FULLY INSTALLED
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)
Downloadable Data Sheet
Back
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.
PRESS STUD INSERTS FOR
BRITTLE THERMOSET
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