27H7640 BOLT.  Nuffield and Leyland handbrake and handclutch pivot bolt. 

For securing 27H9409 (pawl).

Also fitted to Marshall QM cab tractors. 

Fitted to:

• Nuffield 345, 465
• Leyland Middleweight 253, 245, 344, 384, 255, 270, 262, 272, 462, 472, 282, 482, 502, 602, 604, 702, 704, 802, 804
• Leyland Heavyweight 285, 2100, 485, 4100
• Marshall 502, 602, 604, 702, 704, 802, 804