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 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.
Northern Precision Ltd is an ISO9001 accredited Company.
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 831555
Tel:
Fax:
sales@npfasteners.com
Quality
Service
Reliability
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Installation Method
1 2 3 4
Using your prefered type of installation tool. KJ60 air tool and N200 hand tool shown for reference only.
Ensuring that you are using the correct grip size rivet nut for the panel you will be installing into, screw the rivet nut fully on to the tools threaded mandrel.
Follow the instructions specific to your tool to set the correct stroke length for proper rivet nut placement. Fully insert the rivet nut into the hole in the work piece.
Ensuring that you are holding the tool perpendicular to the work piece, operate the tool to set the rivet nut in place.
Unscrew the threaded mandrel from the rivet nut. That’s it. Your rivet nut is now installed.
To ensure that the rivet nut performs as intended it is important that an optimum bulge is formed.
Material & Finish
Heavy Duty Electro Zinc Plated Steel (ZI96) Heavy Duty Electro Zinc Plated Steel for up to 12.9 bolts (HTZI96) Stainless Steel (A2) Stainless Steel for up to 12.9 bolts (HTS) Aluminium (AL) Aluminium (AL) for up to 8.8 bolts (HTA) Brass (BR)
Part Number Examples
Part number is made up as follows: (Type) (Thread code) (Grip Code) (Material/Finish code) For example: OPTI-BCTS M6 0525 ZI96 (BCT Reduced Head Bulge Controlled-M6-suitable for 0.5-2.5mm panel thickness-heavy duty electro zinc plated steel) OPTI-BCTS M8 3050 HTS (BCT Reduced Head Bulge Controlled-M8-suitable for 3.0-5.0mm panel thickness-high strength stainless steel for use with up to 12.9 bolts)
RoHS REACH COMPLIANT
M4 x 0.7
7.0
8.00
14.0
1525
1.5 - 2.5
0.50
6.90
15.0
2535
2.5 - 3.5
8.0
16.0
3545
3.5 - 4.5
17.0
4555
4.5 - 5.5
1.5
Dimensional
Thread Size
Hole Size +0.1 -0.0
D
L Nom.
L2 Ref.
Grip Code
To suit panel thickness (min - max)
S
B ±0.09
M8 x 1.25
11.0
12.00
19.5
1030
1.0 - 3.0
0.60
10.90
23.0
3050
3.0 - 5.0
12.5
24.0
4565
4.5 - 6.5
27.0
6080
6.0 - 8.0
M10 x 1.5
13.0
14.00
25.0
1035
1.0 - 3.5
0.60
12.90
28.0
3560
3.5 - 6.0
16.5
32.0
6085
6.0 - 8.5
C Min.
2.3
2.7
M6 x 1.0
9.0
10.00
16.0
0525
0.5 - 2.5
0.50
8.90
19.0
2540
2.5 - 4.0
10.5
20.5
4055
4.0 - 5.5
22.0
5570
5.5 - 7.0
2.0
M5 x 0.8
8.0
9.00
16.0
0520
0.5 - 2.0
0.50
7.90
17.0
2030
2.0 - 3.0
9.5
18.0
3040
3.0 - 4.0
19.0
4050
4.0 - 5.0
1.8
0515
0.5 - 1.5
13.5
Info
BCT Reduced Head Bulge Controlled is a new type of high performance rivet nut designed to provide much improved performance over conventional rivet nuts.  BCT provides a strong captivated thread in panels and is ideally suited to applications where only one side of the panel is accessible such as box or tube section. Unlike conventional rivet nuts, BCT Bulge Controlled features a controlled upset point and larger bulge formation which allows for perfect installation even in oversize or irregular holes. The bulge is formed without placing load on the panel or hole wall, so they are especially suitable for use in softer or brittle materials such as composites or sandwich sections for example. Available in thread sizes M4 to M10, in RoHS compliant heavy duty electro zinc plated steel (giving 96 hour salt spray protection), heavy duty electro zinc plated high strength steel suitable for use with up to 12.9 bolts, 304 stainless steel, high strength stainless steel suitable for use with up to 12.9 bolts, aluminium, high strength aluminium suitable for use with up to 8.8 bolts and brass. They can be installed into panels as thin as 0.5mm and as thick as 8.5mm. In addition to standard grips they can also be manufactured in grip ranges to suit your exact application requirement.   Requiring the same installation tooling as conventional rivet nuts, tools range from very low cost hand tools for low volume, to air powered automatic installation guns for high volume applications.   BCT has an advantage over other captivated fasteners because they can be installed on site or used for repair work to replace a previously installed fastener that has failed. The advantage of installation from one side of the application means that access to the back of the panel is never required. BCT is a registered trademark of BBA srl.
Optinut Reduced Head Bulge Controlled Rivet Nuts BCT BULGE CONTROL Controlled bulge formation for optimum performance.
BCT® REDUCED HEAD BULGE CONTROLLED
optinut thinsheet bulge controlled rivet nut Self-Clinching Fasteners Broaching Fasteners Arnold & Shinjo Fasteners Rivet Bushes Rivet Nuts Weld Fasteners Cage Nuts 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  OUR PRODUCT RANGE  SERVICES & SUPPORT  RIVET NUTS Reduced Head Imperial Hole Size (TS) Reduced Head Splined Body Imperial Hole Size (TSK) Reduced Head (TSE) Reduced Head Splined Body (TSEK) Reduced Head Closed End (TSB) Reduced Head Closed End Splined Body (TSBK) Flat Head (FRS) Flat Head Splined (FRSK) Flat Head Closed End (FRSB) Flat Head Closed End Splined Body (FRSBK) Countersunk Head (CRS) Countersunk Head Splined Body (CRSK) Countersunk Head Closed End (CRSB) Countersunk Head Closed End Splined Body (CRSBK) Reduced Head Half Hexagon  Imperial Hole Size (HRS) Reduced Head Half Hexagon  (HRSE) Reduced Head Half Hexagon Closed End (HRSB) Reduced Head Full Hexagon  (HRSE/F) Reduced Head Full Hexagon Closed End (HRSB/F) Flat Head Full Hexagon  (FHRS/F) Flat Head Full Hexagon Closed End (FHRSB/F) BCT Reduced Head Multigrip (OPTI-TS) BCT Reduced Head  Multigrip Splined Body (OPTI-TSKN) BCT Large Flange Multigrip (OPTI-LF) BCT Large Flange Multigrip Splined Body(OPTI-LFKN) BCT Reduced Head Bulge Controlled (OPTI-BCTS) BCT Reduced Head Bulge Controlled Splined Body (OPTI-BCTSKN) BCT Large Flange Bulge Controlled (OPTI-BCLF) BCT Large Flange Bulge Controlled Splined Body(OPTI-BCLFKN) Installation Tools, Spares and Servicing