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
HEAT OR
ULTRASONIC
HORN
HEAT OR
ULTRASONIC
HORN
NON-HEADED INSERT
FULLY INSTALLED
HEADED INSERT
FULLY INSTALLED
HEAT OR
ULTRASONIC
HORN
Hole Depth = L
+ min. 2 thread
pitches
1°
inc.
Hole
size
Min. wall
thickness
Material & Finish
Brass (B)
Stainless Steel (A2)
Part Number Examples
Part number is made up as follows:
(Type)-(Thread)-(Optional Body Length)-(Material code)
For example:
UI-M4-B (Insert for thermoplastics-M4-brass)
HUI-M5-5.8-B (Headed Insert for thermoplastics-M5-5.8mm body length-
brass)
Downloadable Data Sheet
Back
Installation
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
Hole Size
+0.10
3.2
4.0
4.0
4.8
5.6
Min. wall
thickness
1.3
1.6
1.6
1.8
2.1
M5 x 0.8
6.4
2.6
M6 x 1.0
M8 x 1.25
M10 x 1.5
M12 x 1.75
8.0
9.6
11.9
16.00
3.3
4.5
6.0
8.0
H
4.8
5.5
5.5
6.4
7.1
7.9
9.5
11.1
14.0
19.0
L Optional
3.0
4.0
4.0 | 4.8
5.0
4.0 | 4.8 | 5.8
5.8
6.8 | 9.5
-
-
-
D
3.6
4.6
4.6
5.4
6.3
7.1
8.7
10.2
12.6
16.7
A
3.1
3.9
3.9
4.7
5.5
6.3
7.9
9.5
11.8
15.8
B
0.53
0.61
0.61
0.76
0.91
1.09
1.35
1.35
1.60
2.00
L
4.0
5.7
5.7
7.1
8.1
9.5
12.7
12.7
12.7
15.9
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.
Inserts for thermoplastics are available in a range of thread sizes, in headed and non-headed variants, are
manufactured from brass and stainless steel and are suitable for installation in soft, medium and hard
thermoplastics by heat-staking or ultrasonics.
INSERTS FOR
THERMOPLASTICS
