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Pull Stud Retention Knob For V-Flange Caterpillar Tooling
- Made from alloy steel with heat treatment and hardened to HRC 58.
- Each retention knob is individually magnetic particle tested to protect against cracking.
- All mating surfaces precision ground.
Item Style A D1 D2 D3 D4 L L1 L2 Hole or Solid CAT40, 5/8-11" Thread 6780-0041 A 45° 0.740" 0.490" 0.280" 0.636" 1.625" 0.440" 0.640" Hole 6780-0042 A 45° 0.740" 0.490" N/A 0.636" 1.625" 0.440" 0.640" Solid 6780-1025 C 45° 0.589" 0.392" N/A 0.636" 2.250" 0.988" 1.264" Solid 6780-1044 C 45° 0.589" 0.392" 0.200" 0.636" 2.250" 0.988" 1.264" Hole CAT50, 1-8" Thread 6780-0044 A 45° 1.140" 0.820" 0.468" N/A 2.300" 0.700" 1.000" Hole 6780-0045 A 45° 1.140" 0.820" N/A N/A 2.300" 0.700" 1.000" Solid 6780-1055 B 45° 0.903" 0.668" N/A N/A 3.080" 1.384" 1.778" Solid 6780-1057 C 45° 0.903" 0.668" 0.390" 1.026" 3.355" 1.384" 1.778" Hole Diagram of Pull Stud Styles
Diagram of each pull stud, CLICK to view large images
Diagram of 6780-0041, CAT40, Style A, with Hole, 1.625" Overall Length
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Diagram of 6780-0042, CAT40, Style A, Solid, 1.625" Overall Length
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Diagram of 6780-1025, CAT40, Style C, Solid, 2.250" Overall Length
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Diagram of 6780-1044, CAT40, Style C, with Hole, 2.250" Overall Length
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Diagram of 6780-1055, CAT50, Style C, Solid, 3.080" Overall Length
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Diagram of 6780-1057, CAT50, Style C, with Hole, 3.355" Overall Length
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Diagram of the machines working with the pull studs
Machine Builder Taper Item # Daewoo CAT40 6780-1025 Daewoo CAT50 6780-1055 Fadal CAT40 6780-0042 Fadal CAT40 Coolant 6780-0041 Fryer CAT40 6780-1025 Fryer CAT40 Coolant 6780-1044 Fryer CAT50 Coolant 6780-1057 Haas CAT40 6780-1025 Haas CAT40 6780-1044 Haas CAT50 6780-1055 Haas CAT50 Coolant 6780-1057 Hurco CAT40 6780-0042 Hurco CAT40 Coolant 6780-0041 Kia CAT40 6780-1025 Kitamura CAT40 6780-1025 Mazak CAT40 6780-0042 Mazak CAT40 Coolant 6780-0041 Mazak CAT50 6780-0045 Mazak CAT50 Coolant 6780-0044 Miyano CAT40 6780-1025 Miyano CAT40 Coolant 6780-1044 OKK CAT40 6780-1025 OKK CAT40 Coolant 6780-1044 Okuma & Howa CAT40 6780-1025 Okuma CAT40 6780-0042 Okuma CAT40 Coolant 6780-0041 Roku-Roku CAT40 6780-1025 Sharp CAT40 6780-1025 Sharp CAT40 Coolant 6780-1044 Toshiba CAT40 6780-1025 Toshiba CAT50 6780-1055 Toyoda CAT40 6780-1025 Toyoda CAT50 Coolant 6780-1057 YCI CAT40 6780-1025 YCI CAT50 6780-1055