Stafford Manufacturing Corp.
256 Andover St.
Wilmington, MA 01887

Phone: 978.657.8000 or 800.695.5551
Fax: 978.657.4731 or 800.649.5101
Email: sales@staffordmfg.com
Website: www.staffordmfg.com
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  • Mount square shafts or structural tubing to components
  • Can be placed anywhere on shaft
  • Supplied with mounting screw
Square Bore Shaft Mounting Collars are designed for use on standard square shafts or structural tubing. They can be completely disassembled and placed anywhere on a shaft. They are precision machined, non-marring, easy to adjust, with high clamping power.

These collars feature a two-piece construction with flats on outside surfaces which are drilled and tapped for attachment to each other or to other components. Also included is a countersunk hole for mounting to any surface. These collars are stackable, secure and easy to open and adjust.

The regular Stackable version has flats on two surfaces for stacking. The Stackable (Cap) version has a single flat to leave a finished outside surface when no further stacking is required.

Stocked in:
  • Steel
  • Stainless Steel
  • Aluminum
Square Bore Shaft Mounting Collars Two-Piece Stackable
Unit of Measure
Items Square Bore Shaft Mounting Collars Two-Piece Stackable - Aluminum
15A008ST
Square Bore Shaft Mounting Collars Two-Piece Stackable
List Price QUOTE
Square Bore Shaft Mounting Collars Two-Piece Stackable - Stainless Steel
15S008ST
Square Bore Shaft Mounting Collars Two-Piece Stackable
List Price QUOTE
Square Bore Shaft Mounting Collars Two-Piece Stackable - Steel
15L008ST
Square Bore Shaft Mounting Collars Two-Piece Stackable
List Price QUOTE
Square Bore Shaft Mounting Collars Two-Piece Stackable - Aluminum
15A010ST
Square Bore Shaft Mounting Collars Two-Piece Stackable
List Price QUOTE
Square Bore Shaft Mounting Collars Two-Piece Stackable - Stainless Steel
15S010ST
Square Bore Shaft Mounting Collars Two-Piece Stackable
List Price QUOTE
Series N/A Solution
Bore Size N/A 1/2 in N/A 1/2 in N/A 1/2 in N/A 5/8 in N/A 5/8 in
Material N/A Aluminum N/A Stainless Steel N/A Steel N/A Aluminum N/A Stainless Steel
Alloy N/A 2024-T351 N/A 303 N/A 1215 N/A 2024-T351 N/A 303
Finish N/A None N/A None N/A Black Oxide N/A None N/A None
Type N/A High Strength
Approximate Weight N/A 0.10 lb N/A 0.25 lb N/A 0.25 lb N/A 0.13 lb N/A 0.33 lb
Country of Origin N/A USA
UPC Code N/A 662786033254 N/A 662786033117 N/A 662786032974 N/A 662786033261 N/A 662786033124
RoHS2 Compliant N/A Yes
REACH Compliant N/A Yes
Outside Diameter N/A 1.750 in N/A 1.750 in N/A 1.750 in N/A 2.000 in N/A 2.000 in
Width N/A 0.500 in
Recessed Screw N/A Yes
Screw Size N/A 1/4-28 x 3/4 N/A 1/4-28 x 5/8 N/A 1/4-28 x 3/4 N/A 1/4-28 x 3/4 N/A 1/4-28 x 5/8
Screw Material N/A Alloy Steel N/A 18-8 Stainless Steel N/A Alloy Steel N/A Alloy Steel N/A 18-8 Stainless Steel
Distance Across Flats N/A 1.562 in N/A 1.562 in N/A 1.562 in N/A 1.812 in N/A 1.812 in
Top Threaded Hole N/A 10-24
Bottom Threaded Hole N/A 1/4-20
Mounting Screw N/A 10-24 Flat Head Cap Screw
Disclaimer N/A
Manufacturer Stock N/A {0} N/A {0} N/A {0} N/A {0} N/A {0}
Message N/A {TBD} N/A {TBD} N/A {TBD} N/A {TBD} N/A {TBD}