Huck-Lok

The HUCKLOK™ Blind Rivets

HuckLok™, with shear ring and lock groove, offers up to 1/4 in. grip and eliminates most pull-throughs when joining thin or lightweight materials, such as plastics, composites, and pliable metals. Double locking system secures connection. When used with Huck AK275 or 2025 tools, or any other blind riveting tool of proper pull capacity, HuckLok blind rivets install in seconds.


Dimensional Data

Dia. (No.) Part No. Grip Range Hole Size A B C F G
3/16 (6) HKLP-R6-5 .062-.312 .191-.201 .120 MAX .348-.388 .101 MAX 0.90 183-.190
Protruding Head HKLP-R6-7 .187-.437 .191-.201 .120 MAX .348-.388 .101 MAX 1.025 183-.190
1/4 (8) HKLP-R8-6 .080-.375 .261-.272 .162 MAX .490-.530 .110-.125 1.062 251-.260
Protruding Head HKLP-R8-7 .187-.437 .261-.272 .162 MAX .490-.530 .110-.125 1.124 251-.260
HKLP-R8-10 .375-.625 .261-.272 .162 MAX .490-.530 .110-.125 1.312 251-.260
HKLP-R8-12 .500-.750 .261-.272 .162 MAX .490-.530 .110-.125 1.436 251-.260
HKLP-R8-14 .625-.875 .261-.272 .162 MAX .490-.530 .110-.125 1.562 251-.260
1/4 (8) HKLT-R8-6 .080-.375 .261-.272 .162 MAX .532-.592 .110-.125 1.062 251-.260
Truss Head HKLT-R8-7 .187-.437 .261-.272 .162 MAX .532-.592 .110-.125 1.124 251-.260
HKLT-R8-10 .375-.625 .261-.272 .162 MAX .532-.592 .110-.125 1.312 251-.260
HKLT-R8-12 .500-.750 .261-.272 .162 MAX .532-.592 .110-.125 1.436 251-.260
HKLT-R8-14 .625-.875 .261-.272 .162 MAX .532-.592 .110-.125 1.562 251-.260


Installed Values (Minimum)

3/16 1/4
Shear 1900 3500
Tensile 1000 1900
Pin Retention 150 400
Installed Pin Position ±.030 ±.030


Material and Finish

Material Sleeve Pin Sleve Finish Pin Finish
Steel Steel Steel Zinc Plate with
Clear Chromate
Zinc Plate with
Clear Chromate


Huck® Installation Tools & Nose Assemblies for HuckLok Fasteners

Air Tools

Tool Model 202/2022 2025 4 202L/2022L/2025L 4 245/255
Nose Assembly 3/16" 99-3300 1, 2 99-3300 1, 2 99-3303L 99-3327
99-3303 99-3303 99-3304L
99-3304 2 99-3304 2 99-3487L1, 3
99-3487 1, 3 99-3487 1, 3
Nose Assembly 1/4” 99-3301 1, 2 99-3301 1, 2 99-3305L 99-3328
99-3305 2 99-3305 2 99-3306L
99-3306 2 99-3306 2 99-3487L1, 3
99-3487 1, 3 99-3301 1, 2 99-3487 1, 3


Air Tools

Tool Model 2480 2480L 2480XL 24800L-2
Nose Assembly 3/16" 99-3300 1, 2 99-3303L 99-3304XL 99-3303-2 2
99-3303 99-3304L
99-3304 2 99-3487L 1, 3
99-3487 1, 3
Nose Assembly 1/4” 99-3301 1, 2 99-3305L 99-3306XL 99-3305-2 2
99-3305 2 99-3306L
99-3306 2 99-3487L 1, 3
99-3487 1, 3