ICG stocks heat treated, Grade C / Grade 8 Nylon Insert Locknuts in many sizes and styles. 

  The locking memory of the nylon insert assures not only outstanding locking, breakaway torque and sealing  characteristics, but consistent performance on reuse as well.  Made to IFI 100/107 specifications (up to 1-1/2" thread pitch, where applicable), we stock a complete range of smaller sizes but specialize in the larger, harder to find sizes most commonly used on hydraulic cylinders and heavy equipment applications. 

  Heat treated to Rockwell C scale 26-34, ICG stocks many of the exact replacement cylinder nuts originally installed on Caterpillar, Deere, Case, Kubota, Wagner and other heavy equipment manufacturers.

  The series, or styles that we carry include:

  NE Series - Standard or "Light Hex" Pattern - sizes from 1/4-20NC up to 1-1/2-12NF in coarse and fine thread pitches, plain and plated finishes.

  NTE Series - Light Hex, Thin Pattern - sizes from 1/2-20NF up to 1-1/2"-12 NF.  Most of the sizes listed in the table below are plated in either a zinc and clear finish or a black phosphate and oil finish, which will not contaminate hydraulic cylinders.

    NU Series - Heavy Hex Pattern, Full Pattern - from 1-3/4-12NF up to 4-1/2-12NF thread pitch - mostly in fine thread, and with a plain or zinc phosphate & oil finish.  We specialize in carrying the larger sizes used most commonly on heavy equipment hydraulic cylinders.

  NTU Series - Heavy Hex, Thin Pattern - we stock sizes from 1-14NF up through 3-12NF, all fine thread pitch, mostly in phosphate & oil finish.

  N1268 Series - "High Nuts" in Grade 8, zinc plated, limited sizes from 1/2-20NF thru 1-14NF

  We specialize in the larger, hard-to-find sizes most commonly used on hydraulic cylinders and heavy equipment.  ICG can cross reference many of the heavy equipment manufacturer locknut part numbers. We stock the exact OEM replacement part for most, if not all, the major producers.  ICG also now stocks a limited number of larger metric insert nut sizes, including: M64-2.0, M72-2.0, M90-2.0, M100-2.0 and more.

  For additional information and pricing, e-mail us at: sales@icgcorporation.com, or fax us at (253)872-6558.  When making inquiries or requesting quotations, please include the series or type of locknut that you are looking for, part number and / or all relevant dimensions and specifications as well as the quantity needed.

  To review a list of downloadable catalog files for our other products in .PDF format, please see the ICG Catalog page

  Please see the table below for a listing of the commonly stocked Grade 8 / C Nylon Insert Locknuts readily available at ICG.

NE SERIES, LIGHT HEX (STANDARD) PATTERN

NTE SERIES, LIGHT HEX THIN PATTERN

N1260/1268 SERIES, "HIGH NUTS

NTU SERIES, HEAVY HEX THIN PATTERN

NU SERIES, HEAVY HEX FULL HEIGHT PATTERN

METRIC SERIES HEAT TREATED LOCKNUTS