Weller WSW SC M1 Lead-Free Solder Wire with Copper - Mild Flux

Weller Brand: Weller

Weller WSW SC M1 is a Lead-Free Solder Wire with 0.7% Copper. It contains 3.5% mildly activated, no-clean flux cores.

  • Composition: Copper (Cu) 0.7%, remainder Tin (Sn)
  • Melting point 227°C
  • Mildly activated, no-clean flux cores (3.5%)
  • Available in a range of wire diameters and spool weights
Description Image Product Buy Pricing (Ex VAT) Wire Diameter Wire Gauge (SWG) Flux Type Leaded / Lead-Free Melting Temperature Solder Alloy Type Weight
Weller T0051387699 WSW SC M1 99.3/0.7 Solder Wire 0.5mm 500g
Weller T0051387699 WSW SC M1 99.3/0.7 Solder Wire 0.5mm 500g
Extended range
Order code: 85-6568
MPN: T0051387699

Out of stockBack-order availability date - 18/08/2026
1+ £64.12
5+ £63.14
Price per unit Ex VAT 		0.50mm 25 No clean Lead-free 227°C Sn99.3Cu0.7 Wire 500g
Weller T0051387599 WSW SC M1 99.3/0.7 Solder Wire 0.8mm 500g
Weller T0051387599 WSW SC M1 99.3/0.7 Solder Wire 0.8mm 500g
Extended range
Order code: 85-6566
MPN: T0051387599

Despatched same day - 3 in stockBack-order availability date - 18/08/2026
1+ £61.69
5+ £61.32
Price per unit Ex VAT 		0.8mm 21 No clean Lead-free 227°C Sn99.3Cu0.7 Wire 500g
Weller T0051387499 WSW SC M1 99.3/0.7 Solder Wire 1.0mm 500g
Weller T0051387499 WSW SC M1 99.3/0.7 Solder Wire 1.0mm 500g
Extended range
Order code: 85-6564
MPN: T0051387499

Available to back orderBack-order availability date - 18/08/2026
1+ £56.00
5+ £55.66
Price per unit Ex VAT 		1mm 19 No clean Lead-free 227°C Sn99.3Cu0.7 Wire 500g
Weller T0051387399 WSW SC M1 99.3/0.7 Solder Wire 1.2mm 500g
Weller T0051387399 WSW SC M1 99.3/0.7 Solder Wire 1.2mm 500g
Extended range
Order code: 85-6562
MPN: T0051387399

Available to back orderBack-order availability date - 18/08/2026
1+ £55.19
5+ £54.87
Price per unit Ex VAT 		1.2mm 18 No clean Lead-free 227°C Sn99.3Cu0.7 Wire 500g

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