Bipod locks from T-Nuts are a great value and damned nice too.
They have the metric versions of all types. 10/32 threads, 5mm threads and 6mm threads. The metric version are for the "Harris Type" bipods out there(Chinese clones)
Some additional information from them...
"All lever configurations are available in M5 x 0.8, M6 x 1.0 threads for use with compatibly non-Harris units. M5 is know to fit Deben, while M6 with Shooter's Ridge and Outers. Caldwell units are also compatible with the 10-32 configuration, although I've had a couple reports of Caldwell needing an M5 (manufacturer indicates that nothing has change on their production side, but..)
The BPL-N series would be the lightest in weight for those with a concern, while the BPL-Micro series is the most popular due to its smaller profile (with the Harris bipod legs being able to be folder, and the bipod base rest flat even with the lever at the downward 6 o'clock position).
The BPL-Micro, BPL-N, and BPL-Z series are also available with stainless steel inner components (the lever ratcheting mechanism, spring and retaining screw)."
I tell you you can't go wrong with using the T-Nuts bi pod locks... They are great units! Tell them that Papa's Place sent ya!
T-nuts bi pod locks: t-nuts.com/index.php?cPath=73
When I signed up for my account on T-nuts they sent me a discount code for 5% off my order. Shipping 1st class mail was $3.50 Total order for the Nylon/steel version was $9.53 shipped. You can't beat that with a big stick! LOL