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
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
Self-Clinching Fasteners
Broaching Fasteners
Arnold & Shinjo Fasteners
Rivet Bushes
Rivet Nuts
Weld Fasteners
Spring Steel Fasteners
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
Keep-Nut Guide
Keep-Nut Flush
Keep-Nut Flanged
Keep-Nut Stud
Master-Plate Guide
Master-Plate Stud
Master-Plate Blind Standoff
Master-Plate Through
Standoff
Master-Plate Through Nut
Deform-Nut Guide
Deform-Nut Type TC
DEFORM-NUT® SYSTEM
FOR SANDWICH PANELS
1. Drill the correct hole from one side of the panel (blind hole)
2. Insert the rivet nut in the hole
3. Using rivet nut setting tool, pull up the rivet nut to to attach it to the top skin of the sandwich panel
4. Inject structural adhesive
5. Insert and screw down the threaded adjusting insert until it reaches the bottom skin of the sandwich panel
6. Fastener is ready for use (time to full strength is dependant on structural adhesive properties)
Deform-Nut® is a patented threaded insert system that combines mechanical anchoring and structural
adhesive to provide strong load-bearing threads in sandwich panel materials (with a honeycomb or
composite internal structure).
Expensive or complex solutions such as resin potting or bonding of bushes and tie rods can be avoided.
Furthermore, Deform-Nut allows you to use the same type of product in a wide range of sandwich panel
materials and thicknesses, is easy and quick to install and doesn't require any further processes or finishing
after installation.
Deform-Nut can be used in any composite material panel, resins, carbon fibre, light alloy, and more.
The 3 stage system comprises:
•
A special rivet nut style fastener which is riveted in to the top skin of the panel using conventional
rivet nut hand or air tooling
•
Structural adhesive is then injected into base of the rivet nut
•
A separate adjusting nut is then screwed into the rivet nut until it bottoms out on the bottom skin,
displacing the adhesive into the surrounding structure to increase load strength
