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
Northern Precision Ltd YouTube Channel
Material & Finish
Unplated Steel (X) Stainless Steel (A2)
Part Number Examples
Part number is made up as follows: (Type)-(Thread/Dia.)-(Length)-(Material/Finish code) For example: WB-M6-10-CP (Weld Bolt-M6-10mm long-unplated steel) WB-6MM-15-A2 (Weld Bolt-6mm Diameter-15mm long-stainless steel)
RoHS REACH COMPLIANT
Info
Resistance welding is a process by where current and pressure are used to bond two pieces of metal. Resistance welding requires force in the bonding process. Pressure is used to hold two pieces of metal together while they are cooling. This also allows for the metals to properly bond together. The necessary pressure for the bonding process is typically applied by the machine or manually by the operator. Projection weld bolts and pins feature three precision weld projections located on the head. This design allows for attachment of the fastener from the underside of the panel. The three equispaced projections are of equal height and diameter allowing for a properly balanced and positioned weld. Weld bolts and pins designed for through-hole applications and are self-locating, eliminating the need for additional jigging. Weld bolts and pins are available in a range of thread sizes, diameters and lengths, manufactured from steel and stainless steel and are suitable for use with compatible panel materials. Projection weld bolts and pins require appropriate resistance welding equipment for attachment.
Projection Weld Bolts and Pins
PROJECTION WELD BOLTS & PINS BS 7670-1:1993
weld bolts and pins
Dimensional
Thread Size Pin Dia. ±0.1
M3 x 0.5 3MM
M4 x 0.7 4MM
M5 x 0.8 5MM
M6 x 1.0 6MM
M8 x 1.25 8MM
M10 x 1.5 10MM
D
5.63 - 6.37
7.55 - 8.45
9.55 - 10.45
11.45 - 12.55
15.45 - 16.55
19.35 - 20.65
H
1.07 - 1.32
1.47 - 1.72
1.87 - 2.12
2.27 - 2.52
3.05 - 3.35
3.85 - 4.15
L ±0.5
8
8
8
8
-
-
10
10
10
10
10
-
12
12
12
12
12
12
16
16
16
16
16
16
20
20
20
20
20
20
25
25
25
25
25
25
30
30
30
30
30
30
35
35
35
35
35
35
40
40
40
40
40
40
45
45
45
45
45
45
-
50
50
50
50
50
-
-
55
55
55
55
-
-
-
60
60
60
M12 x 1.75 12MM
23.35 - 24.65
4.65 - 4.95
-
-
-
16
20
25
30
35
40
45
50
55
60
Preferred lengths shown. Other lengths available to order.