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-2017 N/A 1.250 " N/A 0.531 " N/A 1.000 " N/A 0.562 " N/A 1.343 " N/A 0.625 " N/A 0.048 "
COL-2109 N/A 1.312 " N/A 0.281 " N/A 0.500 " N/A 0.312 " N/A 1.125 " N/A 0.375 " N/A 0.048 "
COL-2111 N/A 1.312 " N/A 0.343 " N/A 0.625 " N/A 0.375 " N/A 1.187 " N/A 0.437 " N/A 0.048 "
COL-2113 N/A 1.312 " N/A 0.406 " N/A 0.750 " N/A 0.437 " N/A 1.250 " N/A 0.500 " N/A 0.048 "
COL-2115 N/A 1.312 " N/A 0.468 " N/A 0.750 " N/A 0.500 " N/A 1.312 " N/A 0.562 " N/A 0.048 "
COL-2117 N/A 1.312 " N/A 0.531 " N/A 1.000 " N/A 0.562 " N/A 1.375 " N/A 0.625 " N/A 0.048 "
COL-2209 N/A 1.375 " N/A 0.281 " N/A 0.500 " N/A 0.312 " N/A 1.156 " N/A 0.375 " N/A 0.048 "
COL-2211 N/A 1.375 " N/A 0.343 " N/A 0.625 " N/A 0.375 " N/A 1.218 " N/A 0.437 " N/A 0.048 "
COL-2213 N/A 1.375 " N/A 0.406 " N/A 0.750 " N/A 0.437 " N/A 1.281 " N/A 0.500 " N/A 0.048 "
COL-2215 N/A 1.375 " N/A 0.468 " N/A 0.750 " N/A 0.500 " N/A 1.343 " N/A 0.562 " N/A 0.048 "
COL-2217 N/A 1.375 " N/A 0.531 " N/A 1.000 " N/A 0.562 " N/A 1.406 " N/A 0.625 " N/A 0.048 "
COL-2309 N/A 1.437 " N/A 0.281 " N/A 0.500 " N/A 0.312 " N/A 1.187 " N/A 0.375 " N/A 0.048 "
COL-2311 N/A 1.437 " N/A 0.343 " N/A 0.625 " N/A 0.375 " N/A 1.250 " N/A 0.437 " N/A 0.048 "
COL-2313 N/A 1.437 " N/A 0.406 " N/A 0.750 " N/A 0.437 " N/A 1.312 " N/A 0.500 " N/A 0.048 "
COL-2315 N/A 1.437 " N/A 0.468 " N/A 0.750 " N/A 0.500 " N/A 1.375 " N/A 0.562 " N/A 0.048 "
COL-2317 N/A 1.437 " N/A 0.531 " N/A 1.000 " N/A 0.562 " N/A 1.437 " N/A 0.625 " N/A 0.048 "
COL-2409 N/A 1.500 " N/A 0.281 " N/A 0.500 " N/A 0.312 " N/A 1.218 " N/A 0.375 " N/A 0.048 "
COL-2411 N/A 1.500 " N/A 0.343 " N/A 0.625 " N/A 0.375 " N/A 1.281 " N/A 0.437 " N/A 0.048 "
COL-2413 N/A 1.500 " N/A 0.406 " N/A 0.750 " N/A 0.437 " N/A 1.343 " N/A 0.500 " N/A 0.048 "
COL-2415 N/A 1.500 " N/A 0.468 " N/A 0.750 " N/A 0.500 " N/A 1.406 " N/A 0.562 " N/A 0.048 "
COL-2417 N/A 1.500 " N/A 0.531 " N/A 1.000 " N/A 0.562 " N/A 1.468 " N/A 0.625 " N/A 0.048 "
COL-2509 N/A 1.562 " N/A 0.281 " N/A 0.500 " N/A 0.312 " N/A 1.250 " N/A 0.375 " N/A 0.048 "
COL-2511 N/A 1.562 " N/A 0.343 " N/A 0.625 " N/A 0.375 " N/A 1.312 " N/A 0.437 " N/A 0.048 "
COL-2513 N/A 1.562 " N/A 0.406 " N/A 0.750 " N/A 0.437 " N/A 1.375 " N/A 0.500 " N/A 0.048 "
COL-2515 N/A 1.562 " N/A 0.468 " N/A 0.750 " N/A 0.500 " N/A 1.437 " N/A 0.562 " N/A 0.048 "
COL-2517 N/A 1.562 " N/A 0.531 " N/A 1.000 " N/A 0.562 " N/A 1.500 " N/A 0.625 " N/A 0.048 "
COL-2609 N/A 1.625 " N/A 0.281 " N/A 0.500 " N/A 0.312 " N/A 1.281 " N/A 0.375 " N/A 0.048 "
COL-2611 N/A 1.625 " N/A 0.343 " N/A 0.625 " N/A 0.375 " N/A 1.343 " N/A 0.437 " N/A 0.048 "
COL-2613 N/A 1.625 " N/A 0.406 " N/A 0.750 " N/A 0.437 " N/A 1.406 " N/A 0.500 " N/A 0.048 "
COL-2615 N/A 1.625 " N/A 0.468 " N/A 0.750 " N/A 0.500 " N/A 1.468 " N/A 0.562 " N/A 0.048 "
COL-2617 N/A 1.625 " N/A 0.531 " N/A 1.000 " N/A 0.562 " N/A 1.531 " N/A 0.625 " N/A 0.048 "
COL-2709 N/A 1.687 " N/A 0.281 " N/A 0.500 " N/A 0.312 " N/A 1.312 " N/A 0.375 " N/A 0.048 "
COL-2711 N/A 1.687 " N/A 0.343 " N/A 0.625 " N/A 0.375 " N/A 1.375 " N/A 0.437 " N/A 0.048 "
COL-2713 N/A 1.687 " N/A 0.406 " N/A 0.750 " N/A 0.437 " N/A 1.437 " N/A 0.500 " N/A 0.048 "
COL-2715 N/A 1.687 " N/A 0.468 " N/A 0.750 " N/A 0.500 " N/A 1.500 " N/A 0.562 " N/A 0.048 "
COL-2717 N/A 1.687 " N/A 0.531 " N/A 1.000 " N/A 0.562 " N/A 1.562 " N/A 0.625 " N/A 0.048 "
COL-2809 N/A 1.750 " N/A 0.281 " N/A 0.500 " N/A 0.312 " N/A 1.343 " N/A 0.375 " N/A 0.048 "
COL-2811 N/A 1.750 " N/A 0.343 " N/A 0.625 " N/A 0.375 " N/A 1.406 " N/A 0.437 " N/A 0.048 "
COL-2813 N/A 1.750 " N/A 0.406 " N/A 0.750 " N/A 0.437 " N/A 1.468 " N/A 0.500 " N/A 0.048 "
COL-2815 N/A 1.750 " N/A 0.468 " N/A 0.750 " N/A 0.500 " N/A 1.531 " N/A 0.562 " N/A 0.048 "
COL-2817 N/A 1.750 " N/A 0.531 " N/A 1.000 " N/A 0.562 " N/A 1.593 " N/A 0.625 " N/A 0.048 "
COL-2909 N/A 1.812 " N/A 0.281 " N/A 0.500 " N/A 0.312 " N/A 1.375 " N/A 0.375 " N/A 0.048 "
COL-2911 N/A 1.812 " N/A 0.343 " N/A 0.625 " N/A 0.375 " N/A 1.437 " N/A 0.437 " N/A 0.048 "
COL-2913 N/A 1.812 " N/A 0.406 " N/A 0.750 " N/A 0.437 " N/A 1.500 " N/A 0.500 " N/A 0.048 "
COL-2915 N/A 1.812 " N/A 0.468 " N/A 0.750 " N/A 0.500 " N/A 1.562 " N/A 0.562 " N/A 0.048 "
COL-2917 N/A 1.812 " N/A 0.531 " N/A 1.000 " N/A 0.562 " N/A 1.624 " N/A 0.625 " N/A 0.048 "
COL-3009 N/A 1.875 " N/A 0.281 " N/A 0.500 " N/A 0.312 " N/A 1.406 " N/A 0.375 " N/A 0.048 "
COL-3011 N/A 1.875 " N/A 0.343 " N/A 0.625 " N/A 0.375 " N/A 1.468 " N/A 0.437 " N/A 0.048 "
COL-3013 N/A 1.875 " N/A 0.406 " N/A 0.750 " N/A 0.437 " N/A 1.531 " N/A 0.500 " N/A 0.048 "
COL-3015 N/A 1.875 " N/A 0.468 " N/A 0.750 " N/A 0.500 " N/A 1.593 " N/A 0.562 " N/A 0.048 "
Unit of Measure
1 2 3 4 5