<< LOCK-N-STITCH® Products << C Series Stitching Pin Briefings C Series Stitching Pin Products
The C1 stitching pins are made of both steel and aluminum. Both the C1 and L4 stitching pins use a tap drill size of wire 29. C1 and L4 also share a lot of other tooling. This is our smallest CASTMASTER™ stitching pin. This tiny pin is used mostly in thin walls as thin as 0.125" and in tight spots. In 0.125" material, one pin will create 130 pounds of holding power. It can be helpful to leave about 0.040" of shoulder above the surface to add strength to thin material repairs when possible.
Specifications:
Aluminum CASTMASTER® C1 Stitching Pins
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Aluminum CASTMASTER® C1 Stitching Pins
- 1/2 in thread
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The C2F stitching pins are made of both steel and aluminum. Both the C2F and L6 stitching pins use a tap drill size of wire 7. C2F and L6 also share a lot of other tooling. The C2F pins with their fine threads have replaced the C2 coarse thread pins originally introduced in 1993. This change allows for installation in thinner material (0.200") and provides more strength (300 pounds in 0.250" cast iron per pin). The finer thread gives better tap life also. C2F pins are used in structural repairs or when no spreading pressure is acceptable. Cracks on inside or outside corners, cracks into bolt holes, core plug holes, inspection holes, pipe thread holes and many other areas where strength must be replaced can be repaired with these pins.
Specifications:
| Thread diameter = 0.233" | Shoulder diameter = 0.280" |
| Tap drill = 0.201" | Pins per inch of repair = 6 |
Steel CASTMASTER® C2F Stitching Pins --1/4 in thread
Steel CASTMASTER® C2F Stitching Pins - 3/8 in thread
Steel CASTMASTER® C2F Stitching Pins - 1/2 in thread
Steel CASTMASTER® C2F Stitching Pins - 3/4 in thread
Steel CASTMASTER® C2F Stitching Pins - 1-1/8 in thread
Aluminum CASTMASTER® C2F Stitching Pins
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Aluminum CASTMASTER® C2F Stitching Pins
- 1/2 in thread
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Aluminum CASTMASTER® C2F Stitching Pins
- 1-1/8 in thread
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The C3 stitching pins are made of steel. The C3 pins use a letter O tap drill. C3 pins require 0.500" minimum wall thickness for installation. They are used in many industrial repairs where high strength and high pressure seal are required. Cracks in large stationary engines, compressors, metal working machinery and other large castings are repaired with C3 pins. Installation with a hand held drill and pneumatic tapping tool are easy with this pin. One pin in 0.750" cast iron creates 1300 pounds of holding power.
Specifications:
| Thread diameter = 0.375" | Shoulder diameter = 0.480" |
| Tap drill = 0.316" | Pins per inch of repair = 3.5 |
Steel CASTMASTER® C3 Stitching Pins - 5/8 in thread
Steel CASTMASTER® C3 Stitching Pins - 7/8 in thread
Steel CASTMASTER® C3 Stitching Pins - 1-3/8 in thread
Steel CASTMASTER® C3 Stitching Pins - 2 in thread
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The C4 stitching pins are made of steel. The C4 pins use a 1/2" tap drill. This is currently our largest CASTMASTER™ stitching pins. It is easier and quicker to install this pin by drilling and tapping by machine rather than hand held tools. One inch of wall thickness is required for C4 pins. A single pin in 1" of cast iron develops 2000 pounds of holding power.
Specifications:
| Thread diameter = 0.600" | Shoulder diameter = 0.730" |
| Tap drill = 0.500" | Pins per inch of repair = 2 |
Steel CASTMASTER® C4Stitching Pins - 1 in thread
Steel CASTMASTER® C4Stitching Pins - 2 in thread
Steel CASTMASTER® C4Stitching Pins - 3 in thread
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It’s not a crack free world.....
You can always depend on LOCK-N-STITCH® …………… .