• Fit standard UNF/UNC threaded shafts
  • Can be placed anywhere on shaft
  • Superior holding power over set-screw type collars
  • Offered in High Strength and Low Profile styles
UNF/UNC 2-Piece Threaded Collars are used on standard threaded shafts, either UNF (fine thread) or UNC (coarse thread). They can be completely disassembled and placed anywhere on a shaft. They are precision machined, non-marring, easy to adjust, with high clamping power.

Stocked in:
  • Steel
  • Stainless Steel
Offered in two styles:
  • High Strength: Clamp screw does not protrude beyond the outside diameter (OD)
  • Low Profile: Clamp screw protrudes beyond the OD
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Threaded Bore Size

Material

  • Stainless Steel
  • Steel

Type

  • High Strength
  • Low Profile

Outside Diameter (in)

Width (in)

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Part Number

Threaded Bore Size

Material

Type

Outside Diameter

Width

8S002F N/A 10-32 N/A Stainless Steel N/A Low Profile N/A 0.625 in N/A 0.313 in
8L002F N/A 10-32 N/A Steel N/A Low Profile N/A 0.625 in N/A 0.313 in
4S004F N/A 1/4-20 N/A Stainless Steel N/A High Strength N/A 0.813 in N/A 0.250 in
8S004C N/A 1/4-20 N/A Stainless Steel N/A Low Profile N/A 0.688 in N/A 0.313 in
4L004F N/A 1/4-20 N/A Steel N/A High Strength N/A 0.813 in N/A 0.250 in
8L004C N/A 1/4-20 N/A Steel N/A Low Profile N/A 0.688 in N/A 0.313 in
3S004F N/A 1/4-28 N/A Stainless Steel N/A High Strength N/A 0.813 in N/A 0.250 in
8S004F N/A 1/4-28 N/A Stainless Steel N/A Low Profile N/A 0.688 in N/A 0.313 in
3L004F N/A 1/4-28 N/A Steel N/A High Strength N/A 0.813 in N/A 0.250 in
8L004F N/A 1/4-28 N/A Steel N/A Low Profile N/A 0.688 in N/A 0.313 in
4S005F N/A 5/16-18 N/A Stainless Steel N/A High Strength N/A 0.813 in N/A 0.250 in
8S005C N/A 5/16-18 N/A Stainless Steel N/A Low Profile N/A 0.688 in N/A 0.313 in
4L005F N/A 5/16-18 N/A Steel N/A High Strength N/A 0.813 in N/A 0.250 in
8L005C N/A 5/16-18 N/A Steel N/A Low Profile N/A 0.688 in N/A 0.313 in
3S005F N/A 5/16-24 N/A Stainless Steel N/A High Strength N/A 0.813 in N/A 0.250 in
8S005F N/A 5/16-24 N/A Stainless Steel N/A Low Profile N/A 0.688 in N/A 0.313 in
3L005F N/A 5/16-24 N/A Steel N/A High Strength N/A 0.813 in N/A 0.250 in
8L005F N/A 5/16-24 N/A Steel N/A Low Profile N/A 0.688 in N/A 0.313 in
4S006F N/A 3/8-16 N/A Stainless Steel N/A High Strength N/A 1.063 in N/A 0.313 in
8S006C N/A 3/8-16 N/A Stainless Steel N/A Low Profile N/A 0.875 in N/A 0.375 in
4L006F N/A 3/8-16 N/A Steel N/A High Strength N/A 1.063 in N/A 0.313 in
8L006C N/A 3/8-16 N/A Steel N/A Low Profile N/A 0.875 in N/A 0.375 in
3S006F N/A 3/8-24 N/A Stainless Steel N/A High Strength N/A 1.063 in N/A 0.313 in
8S006F N/A 3/8-24 N/A Stainless Steel N/A Low Profile N/A 0.875 in N/A 0.375 in
3L006F N/A 3/8-24 N/A Steel N/A High Strength N/A 1.063 in N/A 0.313 in
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