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Two grey prime-coated full mortise spring hinges, square corners, non-removable pins

Tuff Stuff

Tuff Stuff 86670 Prime Coat Grey Full Mortise Spring Hinges Pair

SKU CH-AZTH-XBPNK

Full mortise spring hinges with prime coat grey finish, supplied as a pair with machine and wood screws

  • Surface finishPrime Coat Grey
  • Sold asPair
  • Spring-loaded automatic door closure with single-action mechanism
  • Prime Coat Grey finish protects against corrosion and wear
  • Full mortise design fits standard 7" x 7" door preparations
  • Square corner template hole pattern simplifies installation alignment
  • Supplied as a pair with both machine and wood screws included

Door Spring Hinges

This pair of full mortise spring hinges is designed for doors that need automatic closing action. They suit residential and light commercial installations where a self-closing mechanism is required without a separate overhead closer.

7" x 7" Leaf Dimensions

The hinges are manufactured to a standard 7" x 7" mortise template with square corners and a non-removable pin. This exact leaf size and hole pattern determine whether the hinge fits the existing mortise prep in the door and frame.

Sustained Closing Force

The internal spring provides consistent closing torque over repeated cycles rather than a single burst of energy. Prime coat grey finish protects the steel substrate during extended service in interior or sheltered exterior applications.

How it compares

Measured against everything we stock in Door Stops, Hinges & Window Hardware, at today’s prices. Recalculated every night.

Price $54.99
Pricier than about 90% of the 316 comparable items (median $14.99).

Specifications

Size & build
Surface finishPrime Coat Grey

Questions about this item

What does the 86670 model number tell me about how these hinges perform once installed?

The 86670 identifies this specific pair of full mortise, single-action spring hinges that close a door automatically after opening.

Which mounting standard do the template hole patterns follow, and what door thicknesses does that limit me to?

The template hole pattern matches standard 7-inch mortise preparation, fitting doors prepared for that industry cut-out.

What mortise depth and screw types are needed to fit the 7-inch leaves on a door?

Each leaf requires a 7-inch by 7-inch mortise pocket and the box includes both machine and wood screws for installation.

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