Home |
Hex Shaft Coupler

High-Strength Hex Shaft Coupler


Our hex shaft couplers are manufactured out of high strength C1018 steel and are black oxide coated for corrosion resistance. Hex shaft couplings offer the best performance and some of the highest torque ratings because of the hexagonal bore design. 1018 grade cold rolled carbon steel is used for hex shaft couplers because is a high-strength material that offers great precision and good case hardening qualities. We keep these in stock in bore sizes 9/16" to 1-1/8" but other sizes can be manufactured upon request.

Hex Coupler

Coupler Size
Dimensions (D)
Dimension (A)
Dimension (C)
Dimension (E)
Dimension (B)
1/4" 9/16" 2-1/2" 5/8" 1-1/2"
1/4" 7/8" 3" 5/8" 1-3/4"
1/4" 5/8" 2-1/2" 5/8" 1-1/2"
1/4" 3/4" 3" 5/8" 1-5/8"
5/16" 1-1/8" 4-1/2" 1" 2"

Frequently Asked Questions

  • When clicked, section opens and shows an answer below. It can be a paragraph of few paragraphs, lists links, etc. Complete area is clickable and closes. When clicked, section opens and shows an answer below. It can be a paragraph of few paragraphs, lists links, etc. Complete area is clickable and closes.

  • All our products are subject to quality control.

    Our warranty provides a guarantee against manufacturer defects.

    The guarantee covers any manufacturing, design, or material defect. Please notify us within 2 months of noticing any defects.

    It does not cover blows, improper use, or other issues that are not attributable to a manufacturer defects.

  • Yes, we offer full and partial refunds.

    Please enquire for more information about our Refund policy.

  • We use all major carriers, and local courier partners. Use the shipping estimator in the cart to check your shipping rates.

  • Use this text block to discuss some commonly asked questions like shipping and returns, sizing, warranties, or product and company details.