Bommer Industries has been in business 1876, with over 125 years of quality products. Their products are American made with American Metals.

Bommer 7312 Spring Door Pivot Hinge, Surface Mounted. Cast Brass construction pivot hinge for Door up to 36 Inches Wide, 2-1/2 Inches Thick with a Maximum Door Weight of 75 lbs.

Bommer 7312 Specifications:

• Maximum Door Width - 36"
• Maximum Door Thickness - 2-1/2"
• Maximum Door Weight - 75 lbs.
• Cast Brass Construction
• Surface Mounted Pivot
• Double Acting
• Ball Bearing Pivot
• Non-Handed
• Adjustable Spring Tension
• Flat Door Bracket - For doors not less than 1" thick
• Flat Jamb Bracket - 1-1/4" Wide
• Packaged with #12 - 1-1/4" and #10 - 1" Flat Head Wood Screws
• Bommer 7312 Dimensions (PDF)
• How to Reactivate Tension on Bommer Spring Pivots

Sold individually as a set, with 1 pivot , 1 each jamb and door bracket, 1 top pivot assembly with jamb bracket, and mounting screw hardware. Enough to do one door.