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Bommer LB4312-350 Steel Hinge
LB4312-350 Steel
Full Mortise 3-1/2" x 3-1/2"
5/8" Radius Corners
Lube Bearing
ANSI K81071F
Single Acting Spring Hinges

Lube Bearing LB4300 Series - Patent # 6,460,220

LB4312 Steel - Full Mortise - ANSI K81071F

  • UL Listed For Fire Door Applications
  • Non Handed
  • Steel Material
  • Self Lubricating Bearings
  • Easily Adjustable Spring Tension
  • ANSI Templated Screw Hole Pattern
  • Pivot Point Aligns with Residential Butt Hinges Gauge .085 to .109


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Bhma 632 (Box Of 2) Bommer Lb4312-350-632 Steel 3-1/2" X 3-1/2" Hinge In Bright Brass Plated, Clear Coated Finish Bhma 632 (Box Of 2) Bommer Lb4312-350-632 Steel 3-1/2" X 3-1/2" Hinge In Bright Brass Plated, Clear Coated Finish Usually Ships in 24 Hours
List Price: $170.38
Sale Price: $102.00
Savings: $68.38
Bhma 633 (Box Of 2) Bommer Lb4312-350-633 Steel 3-1/2" X 3-1/2" Hinge In Satin Brass Plated, Clear Coated Finish Bhma 633 (Box Of 2) Bommer Lb4312-350-633 Steel 3-1/2" X 3-1/2" Hinge In Satin Brass Plated, Clear Coated Finish Usually Ships in 24 Hours
List Price: $153.66
Sale Price: $102.00
Savings: $51.66
Bhma 646 (Box Of 2) Bommer Lb4312-350-646 Steel 3-1/2" X 3-1/2" Hinge In Satin Nickel Plated, Clear Coated Finish Bhma 646 (Box Of 2) Bommer Lb4312-350-646 Steel 3-1/2" X 3-1/2" Hinge In Satin Nickel Plated, Clear Coated Finish Usually Ships in 24 Hours
List Price: $164.26
Sale Price: $102.00
Savings: $62.26
Bhma 651 (Box Of 2) Bommer Lb4312-350-651 Steel 3-1/2" X 3-1/2" Hinge In Bright Chromium Plated Finish Bhma 651 (Box Of 2) Bommer Lb4312-350-651 Steel 3-1/2" X 3-1/2" Hinge In Bright Chromium Plated Finish Usually Ships in 24 Hours
List Price: $170.38
Sale Price: $102.00
Savings: $68.38
Bhma 652 (Box Of 2) Bommer Lb4312-350-652 Steel 3-1/2" X 3-1/2" Hinge In Satin Chromium Plated Finish Bhma 652 (Box Of 2) Bommer Lb4312-350-652 Steel 3-1/2" X 3-1/2" Hinge In Satin Chromium Plated Finish Usually Ships in 24 Hours
List Price: $164.26
Sale Price: $102.00
Savings: $62.26