Hart Steel Replacement Hex Nut Assembly for 5/8, 6/8 or 7/8 Razors — Classic Shaving Skip to content

Hart Steel Replacement Hex Nut Assembly for 5/8, 6/8 or 7/8 Hart Razor

3 reviews
$4.99 USD

Contents: Pin, Nut & 2 Washers (5/8 assembly kit comes with an extra washer, details below)


5/8" razor hex-nuts have changed. If you have an older 5/8" razor with a hole diameter of 1/8", please select the OLD hexnut assembly. If you have a newer 5/8" razor with a hole diameter of 3/16", please select the NEW hexnut assembly.

Available for your 5/8ths, 6/8ths or 7/8ths razor. Please choose size from dropdown menu above.

This hex nut assembly allows you to easily swap out the scales on your 5/8, 6/8 or 7/8 Hart Steel straight razor. Assembly includes pin nut and 2 silicone washers (5/8 set comes with a third, steel washer). Silicone washers are meant to rest inside the monoscale aiding in a smooth tang pivot. Steel washer in the 5/8ths models goes just beneath the head of the pin assembly. Assembly is tightened with a 5/64" (6/8th & 7/8 razors) or a .050" hex wrench (5/8 razor) which IS NOT included with purchase of this assembly but IS included with every Hart Steel razor purchase. Please contact Customer Service if you need a new hex wrench and we'll see what we can do to help.

Customer Reviews
5.0 Based on 3 Reviews
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Kenneth B.
United States United States

Great. Just like the last time and the time before that.

  • Have You Ever Tried a Pre-Shave Oil or Lotion? Yes. Didn't notice a difference.
  • Do you prefer a Shave Soap or Cream? Soap.
  • Do you prefer a Safety Razor or Straight Razor? Straight.
  • How long have you been Wet Shaving? About 20 years with a straight razor.
Steven P.
United States United States
Easy replacement of pins with hex nuts.

Very easy to pin razor to scales, no pining required and makes it so easy to replace scales.

Dave H.
Hart pivot screw & nut

I use the Hart pivot assembly so I can remove the scales periodically from my favorite Wade & Butcher razor. You will probably need to enlarge the blade pivot hole. I use a series of small diamond impregnated & tapered grinding bits. Some patience is required as blade steel is very hard. Clamp the blade in a vice to do this operation. Work from side to side gradually enlarging the hole. In time the hole will be large enough for the new pivot assembly. I use a small drop of Loctite blue to set the tension on the pivot. The Loctite will prevent the screw from loosening. Thanks and good luck, Dave.