FEATURES:

• universal 1/4" and 3/8" steel threads for tripod 
• 4x M4 threads (Manfrotto compatible)
• 140mm length
• 1x 1/4" & 1x 3/8" screws included
• Manfrotto 577 & Manfrotto 501PL compatible
• safetylock, two knobs

AKC-3 adapter is compatible with Manfrotto 501PL sliding plate.

Set includes:

• AKC-3 adapter with AK-101 LONG sliding plate 
• 1/4" and 3/8 " photographic screw and a grub screw that locks them
• four M4x12 screws
• four M4x20 screws
• two M8 screws with square nuts
• 3mm Allen key L type
• 2.5mm Allen key L type