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1B2578 Hex Head Hex Jam Nut
1B2578 is a hex head hex jam nut used with Caterpillar articulated dump trucks. This is a new aftermarket spare part manufactured by CTP (Costex Tractor Parts).
Fitment
Caterpillar 725 articulated dump truck
Caterpillar 730 articulated dump truck
Caterpillar 735 articulated dump truck
Caterpillar 740 articulated dump truck
Caterpillar D250E II articulated dump truck
Caterpillar D300E II articulated dump truck
Caterpillar D350E II articulated dump truck
Caterpillar D400E II articulated dump truck
Cross-reference numbers
1B-2578
Specifications
Part type
Hex lock nut / hex jam nut
Thread size
3/8 in - 16 threads per inch
Thread type
Standard coarse thread
Hole thread pitch
16 threads per inch
Nut height
0.22 in
Nut width
9/16 in
Coating
Galvanized zinc
Hardened
No
Material description
Equivalent to ISO Class 8 or SAE Class 5
Weight
0.1 lb
Listed length
1.4 cm
Listed width
1.4 cm
Listed depth
0.8 cm
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