Keystone Fastening Technologies
Keystone Fastening Technologies
114 VIP Drive, Wexford, PA 15090
Phone: 1.800.659.5972
Email: info@keystonefastening.com
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Wiring and Tube Clamps (Medium Duty)
Clamping Diameters range from 0.187" - 4.00"
Bolt Hole Diameters include 0.203", 0.281", 0.343", 0.406", 0.468", 0.531"
Materials/finishes available include G90 galvanized steel, stainless steel and aluminum
Cushion Materials include general purpose EPDM and Silicone
Aluminum available from .187" - 2.00" clamping diameter in 09 series

Call for pricing.
COL Clamps - Photo
Unit of Measure
1 2 3 4 5 

Item #

Clamping Diameter (D)

Hole Diameter (H) ±.005

Width (W) ±.010

Hole Center To End (E) ±.015

Center To Center (L) ±.031

Slot Length (S) ±.020

Gage ± .002

COL-4417 N/A 2.750 " N/A 0.531 " N/A 1.000 " N/A 0.562 " N/A 2.125 " N/A 0.625 " N/A 0.048 "
COL-4609 N/A 2.875 " N/A 0.281 " N/A 0.500 " N/A 0.312 " N/A 1.937 " N/A 0.375 " N/A 0.048 "
COL-4611 N/A 2.875 " N/A 0.343 " N/A 0.625 " N/A 0.375 " N/A 2.000 " N/A 0.437 " N/A 0.048 "
COL-4613 N/A 2.875 " N/A 0.406 " N/A 0.750 " N/A 0.437 " N/A 2.062 " N/A 0.500 " N/A 0.048 "
COL-4615 N/A 2.875 " N/A 0.468 " N/A 0.750 " N/A 0.500 " N/A 2.125 " N/A 0.562 " N/A 0.048 "
COL-4617 N/A 2.875 " N/A 0.531 " N/A 1.000 " N/A 0.562 " N/A 2.188 " N/A 0.625 " N/A 0.048 "
COL-4809 N/A 3.000 " N/A 0.281 " N/A 0.500 " N/A 0.312 " N/A 2.000 " N/A 0.375 " N/A 0.048 "
COL-4811 N/A 3.000 " N/A 0.343 " N/A 0.625 " N/A 0.375 " N/A 2.062 " N/A 0.437 " N/A 0.048 "
COL-4813 N/A 3.000 " N/A 0.406 " N/A 0.750 " N/A 0.437 " N/A 2.125 " N/A 0.500 " N/A 0.048 "
COL-4815 N/A 3.000 " N/A 0.468 " N/A 0.750 " N/A 0.500 " N/A 2.187 " N/A 0.562 " N/A 0.048 "
COL-4817 N/A 3.000 " N/A 0.531 " N/A 1.000 " N/A 0.562 " N/A 2.250 " N/A 0.625 " N/A 0.048 "
COL-5209 N/A 3.250 " N/A 0.281 " N/A 0.500 " N/A 0.312 " N/A 2.125 " N/A 0.375 " N/A 0.048 "
COL-5211 N/A 3.250 " N/A 0.343 " N/A 0.625 " N/A 0.375 " N/A 2.187 " N/A 0.437 " N/A 0.048 "
COL-5213 N/A 3.250 " N/A 0.406 " N/A 0.750 " N/A 0.437 " N/A 2.250 " N/A 0.500 " N/A 0.048 "
COL-5215 N/A 3.250 " N/A 0.468 " N/A 0.750 " N/A 0.500 " N/A 2.312 " N/A 0.562 " N/A 0.048 "
COL-5217 N/A 3.250 " N/A 0.531 " N/A 1.000 " N/A 0.562 " N/A 2.375 " N/A 0.625 " N/A 0.048 "
COL-5609 N/A 3.500 " N/A 0.281 " N/A 0.500 " N/A 0.312 " N/A 2.250 " N/A 0.375 " N/A 0.048 "
COL-5611 N/A 3.500 " N/A 0.343 " N/A 0.625 " N/A 0.375 " N/A 2.312 " N/A 0.437 " N/A 0.048 "
COL-5613 N/A 3.500 " N/A 0.406 " N/A 0.750 " N/A 0.437 " N/A 2.375 " N/A 0.500 " N/A 0.048 "
COL-5615 N/A 3.500 " N/A 0.468 " N/A 0.750 " N/A 0.500 " N/A 2.437 " N/A 0.562 " N/A 0.048 "
COL-5617 N/A 3.500 " N/A 0.531 " N/A 1.000 " N/A 0.562 " N/A 2.500 " N/A 0.625 " N/A 0.048 "
COL-6009 N/A 3.750 " N/A 0.281 " N/A 0.500 " N/A 0.312 " N/A 2.375 " N/A 0.375 " N/A 0.048 "
COL-6011 N/A 3.750 " N/A 0.343 " N/A 0.625 " N/A 0.375 " N/A 2.437 " N/A 0.437 " N/A 0.048 "
COL-6013 N/A 3.750 " N/A 0.406 " N/A 0.750 " N/A 0.437 " N/A 2.500 " N/A 0.500 " N/A 0.048 "
COL-6015 N/A 3.750 " N/A 0.468 " N/A 0.750 " N/A 0.500 " N/A 2.562 " N/A 0.562 " N/A 0.048 "
COL-6017 N/A 3.750 " N/A 0.531 " N/A 1.000 " N/A 0.562 " N/A 2.625 " N/A 0.625 " N/A 0.048 "
COL-6409 N/A 4.000 " N/A 0.281 " N/A 0.500 " N/A 0.312 " N/A 2.500 " N/A 0.375 " N/A 0.048 "
COL-6411 N/A 4.000 " N/A 0.343 " N/A 0.625 " N/A 0.375 " N/A 2.562 " N/A 0.437 " N/A 0.048 "
COL-6413 N/A 4.000 " N/A 0.406 " N/A 0.750 " N/A 0.437 " N/A 2.625 " N/A 0.500 " N/A 0.048 "
COL-6415 N/A 4.000 " N/A 0.468 " N/A 0.750 " N/A 0.500 " N/A 2.687 " N/A 0.562 " N/A 0.048 "
COL-6417 N/A 4.000 " N/A 0.531 " N/A 1.000 " N/A 0.562 " N/A 2.750 " N/A 0.625 " N/A 0.048 "
Unit of Measure
1 2 3 4 5