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Knife-Thread Inserts

Knife-Thread Inserts are designed for use in hard woods, like oak, cherry, and maple. These inserts are ideal for use wherever assembly or disassembly could lead to thread erosion or stripping. Also, Knife-Thread Inserts for wood use a proprietary external “knife” thread to slice into the wood, which provides superior holding power. Knife-Thread Inserts are most often machined out of brass when internal thread sizes range from #4 to 3/8 or M3 to M8. For additional corrosion resistance, stainless steel knife thread inserts are used with 8-32, 10-24, and 1/4-20 internal threads.

Knife-Thread Inserts

Features:

  • Superior hard wood holding power
  • Sizing variety, inch (coarse/fine) & metric
  • Brass or stainless steel options
  • Easily installs with a screwdriver, bolt/jam nut, or optional drive tool

Ideal for:

  • Furniture (Brass)
  • Cabinetry (Brass)
  • Partitions (Brass)
  • Beer Tap Handles
  • Shipping Containers (Brass or Stainless Steel)
  • Marine Applications (Stainless Steel)
  • Outdoor Furniture (Brass or Stainless)
  • Storm Shutters (Brass or Stainless)
View as Grid List

19 Items

per page
Set Descending Direction
  1. M8 x 1.25 ISO x 0.625 Knife-Thread Threaded Inserts For Wood - Brass

    Sku #: 35L6C-NCKY-B80H-0A

    M8 x 1.25 ISO x 0.625 Knife-Thread Threaded Inserts For Wood - Brass
    Special Price $1.15 Regular Price $1.64
  2. M6 x 1 ISO x 0.500 Knife-Thread Threaded Inserts For Wood - Brass

    Sku #: 35L6C-NCKY-B60F-0A

    M6 x 1 ISO x 0.500 Knife-Thread Threaded Inserts For Wood - Brass
    Special Price $0.64 Regular Price $0.91
  3. M5 x 0.8 ISO x 0.500 Knife-Thread Threaded Inserts For Wood - Brass

    Sku #: 35L6C-NCKY-B50E-0A

    M5 x 0.8 ISO x 0.500 Knife-Thread Threaded Inserts For Wood - Brass
    Special Price $0.64 Regular Price $0.91
  4. M4 x 0.7 ISO x 0.375 Knife-Thread Threaded Inserts For Wood - Brass

    Sku #: 35L6C-NCKY-B40C-0A

    M4 x 0.7 ISO x 0.375 Knife-Thread Threaded Inserts For Wood - Brass
    Special Price $0.60 Regular Price $0.85
  5. M3 x 0.5 ISO x 0.375 Knife-Thread Threaded Inserts For Wood - Brass

    Sku #: 35L6C-NCKY-B30A-0A

    M3 x 0.5 ISO x 0.375 Knife-Thread Threaded Inserts For Wood - Brass
    Special Price $0.59 Regular Price $0.84
  6. 3/8-24 UNF x 0.625 Knife-Thread Threaded Inserts For Wood - Brass

    Sku #: 35L6C-NCKA-37-0A

    3/8-24 UNF x 0.625 Knife-Thread Threaded Inserts For Wood - Brass
    Special Price $1.12 Regular Price $1.59
  7. 3/8-16 UNC x 0.625 Knife-Thread Threaded Inserts For Wood - Brass

    Sku #: 35L6C-NCJR-37-0A

    3/8-16 UNC x 0.625 Knife-Thread Threaded Inserts For Wood - Brass
    Special Price $1.17 Regular Price $1.66
  8. 5/16-24 UNF x 0.625 Knife-Thread Threaded Inserts For Wood - Brass

    Sku #: 35L6C-NCKA-31-0A

    5/16-24 UNF x 0.625 Knife-Thread Threaded Inserts For Wood - Brass
    Special Price $1.15 Regular Price $1.64
  9. 5/16-18 UNC x 0.625 Knife-Thread Threaded Inserts For Wood - Brass

    Sku #: 35L6C-NCJR-31-0A

    5/16-18 UNC x 0.625 Knife-Thread Threaded Inserts For Wood - Brass
    Special Price $1.15 Regular Price $1.64
  10. 1/4-20 UNC x 0.500 Knife-Thread Threaded Inserts For Wood - 303 Stainless - Made in USA

    Sku #: 35L6C-PXD8-25-0A

    1/4-20 UNC x 0.500 Knife-Thread Threaded Inserts For Wood - 303 Stainless
    Special Price $2.46 Regular Price $3.75
  11. 1/4-28 UNF x 0.500 Knife-Thread Threaded Inserts For Wood - Brass

    Sku #: 35L6C-NCKA-25-0T

    1/4-28 UNF x 0.500 Knife-Thread Threaded Inserts For Wood - Brass
    Special Price $0.67 Regular Price $0.95
  12. 1/4-20 UNC x 0.500 Knife-Thread Threaded Inserts For Wood - Brass

    Sku #: 35L6C-NCJR-25-0T

    1/4-20 UNC x 0.500 Knife-Thread Threaded Inserts For Wood - Brass
    Special Price $0.63 Regular Price $0.90
  13. 10-24 UNC x 0.500 Knife-Thread Threaded Inserts For Wood - 303 Stainless - Made in USA

    Sku #: 35L6C-PXD8-10-0A

    10-24 UNC x 0.500 Knife-Thread Threaded Inserts For Wood - 303 Stainless
    Special Price $2.35 Regular Price $3.58
  14. 10-32 UNF x 0.500 Knife-Thread Threaded Inserts For Wood - Brass

    Sku #: 35L6C-NCKA-10-0T

    10-32 UNF x 0.500 Knife-Thread Threaded Inserts For Wood - Brass
    Special Price $0.63 Regular Price $0.90
  15. 10-24 UNC x 0.500 Knife-Thread Threaded Inserts For Wood - Brass

    Sku #: 35L6C-NCJR-10-0T

    10-24 UNC x 0.500 Knife-Thread Threaded Inserts For Wood - Brass
    Special Price $0.63 Regular Price $0.90
  16. 8-32 UNC x 0.375 Knife-Thread Threaded Inserts For Wood - 303 Stainless - Made in USA

    Sku #: 35L6C-PXD8-08-0A

    8-32 UNC x 0.375 Knife-Thread Threaded Inserts For Wood - 303 Stainless
    Special Price $2.00 Regular Price $3.05
  17. 8-32 UNC x 0.375 Knife-Thread Threaded Inserts For Wood - Brass

    Sku #: 35L6C-NCJR-08-0T

    8-32 UNC x 0.375 Knife-Thread Threaded Inserts For Wood - Brass
    Special Price $0.55 Regular Price $0.78
  18. 6-32 UNC x 0.375 Knife-Thread Threaded Inserts For Wood - Brass

    Sku #: 35L6C-NCJR-06-0T

    6-32 UNC x 0.375 Knife-Thread Threaded Inserts For Wood - Brass
    Special Price $0.49 Regular Price $0.70
  19. 4-40 UNC x 0.375 Knife-Thread Threaded Inserts For Wood - Brass

    Sku #: 35L6C-NCJR-04-0T

    4-40 UNC x 0.375 Knife-Thread Threaded Inserts For Wood - Brass
    Special Price $0.49 Regular Price $0.70