hinge manufacturer, latch manufacturer, custom designed hinges
Knuth Hinge Company
1-800-431-6291

Precision Hinges

Quality Latches




Quality, Reliability,
And Service
Since 1960

Long Runs, Short Runs and Prototypes

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Custom Hinges
Continuous, Butt, & Slip Joint Hinges
Knife, Strap & "T"  Hinges
Concealed, Stop & Spring Hinges
Single, Double, & Cane Bolt Latches
Terminology & Conditions of Sale


Quality Latch Manufacturer

As a quality latch manufacturer, Knuth Hinge Company makes single bolt latches, cane bolt latches and double bolt latches in a variety of materials, gauges, pin diameters and lengths. Custom sizes and configurations, and specialty treatments such as powder coating, anodizing and electropolishing are available on request.

At Knuth Hinge Company, no order is too small. Regardless of its size or delivery date, our expert staff and engineers are available to assist you to ensure you get exactly what you need.

Single Bolt Latches & Keepers

Components of our Single bolt latches (with or without keepers) are available in a variety of materials and finishes, such as:

 Anodized aluminum alloy or stainless steel housings
 Zinc-plated steel or stainless steel handle and pin
 Stainless steel springs

Pin diameter (.250, .281 or .312), pin extension and pin nose styles can be specified. We produce single bolt latches with or without mounting holes, and for either right-hand or left-hand applications.

Double Bolt Latches

We manufacture our double bolt latches components in a variety of materials and finishes, such as:
 Anodized aluminum alloy housing and keeper
 Zinc-plated steel or stainless steel handle and pin

Steel with an anti-rust solution for short term protection prior to welding or plating is also available.

As with our single bolt latches, you can specify pin diameter (.250, .281 or .312), pin extension and pin nose style on our double bolt latches. We can produce double bolt latches with or without mounting holes, as a complete assembly, housing only or keeper only.

Cane Bolt Latch & Heavy Duty Cane Bolt Latch

Unless specified otherwise, our basic cane bolt latch spring is produced with music wire, and our heavy duty cane bolt latch spring is produced with stainless steel. Optional latch materials and finishes include:

 Anodized aluminum alloy  Weldable aluminum alloy
 Zinc plated steel  Oil coated steel
 

Single Bolt Latches, Double Bolt Latches & Cane Bolt Latches

cane bolt latches

 

Knuth latches are reliable, low cost devices used for easy access and secure closure, primarily on hinged doors and inspection panels. Single bolt, cane bolt and double bolt latches are available in a variety of materials, gauges, pin diameters and lengths. They can be provided with specialty treatments and coatings such as powder coating, anodizing and electropolishing. Custom sizes and configurations are available on request

 

Series 2011 Single Bolt Latch
 


To Order

Specify material and finish:
1 Housing—anodized alum alloy.
   Handle and pin—zinc plated steel.
   Spring —stainless steel.
2 Housing, handle and pin—zinc plated 
   steel. Spring—stainless steel.
3 Housing, handle and pin—stainless
    steel. Spring—stainless steel.

Specify pin diameter:
1 .250, 2 .281, 3 .312
Specify pin nose style. (see drawing)
Specify pin extension.

Specify mounting holes:
1 No holes
2 Mounting holes (shown)
   Specify right or left-hand.
 


                 


Series 2012 Single Bolt Latch & Keeper


To Order


Specify material and finish:
1 Housing and keeper
—anodized alum alloy.
   Handle and pin—zinc plated steel.
2 Housing, keeper, handle and pin—
   zinc plated steel.
3 Housing, keeper, handle and pin—stainless steel.
Specify mounting holes:
1 No holes
2 Mounting holes (shown)
   Specify right or left-hand.
single bolt latch

Series 2010 Double Bolt Latch

 
double bolt latch

Double, single and cane bolt latches are available in a variety of materials, gauges, pin diameters and knuckle lengths. They can be provided with specialty treatments and coating such as powder coating, anodizing and electropolishing.


To Order
Specify material and finish:
1 Housing and keeperanodized alum alloy.
   Handle and pinzinc plated steel.
2 Housing, keeper, handle and pinzinc plated
   steel.
3 Housing, keeper, handle and pinstainless steel.
4 Housing, keeper, handle and pinsteel with
   light oil coat for corrosion protection.
Specify pin diameter:
1 .250, 2 .281, 3 .312
Specify hinge length. (see table)
Specify mounting holes:
1 No holes
2 Mounting holes (shown on hinge length table)
Specify: complete assembly, Housing Only or Keeper Only.
Hinge Length
Number

Length
Number of Equally
Spaced Holes
3 3.0 2
4 4.0 2
5 5.0 3
6 6.0 3
7 7.0 4
8 8.0 4

Dimensions are in inches.
 

Series 1400 Gate Latches
Locks open and closes quickly with 
   a twist of the bolt
Self-aligning bolt makes closing a
   cinch
Coil spring makes the latch self-
    closing
Made from zinc plated steel
11 gauge material with 1/2"
    diameter bolt
gate latches


Series 3010 Cane Bolt Latch

To Order
Specify material and finish:
1 Housinganodized alum alloy.
2 Housing
weldable alum alloy, without
   finish.
Unassembled.
3 Housing
zinc plated steel.
4 Housing
oil coated steel. Unassembled.
   Unless specified otherwise: Spring
music
   wire. Bolt
zinc plated steel per MS-5059 or
   equivalent
5 Housing, bolt and spring
   (except assemblies # 1-8)
stainless steel.
Specify assembly number. (see table)
Specify pin nose style. (see drawing)
Specify mounting holes:
1 No holes
2 Mounting holes (shown)
   
Assembly L B W P E T H Nose Style J
LH RH
1 2 .87
.37 .12 .18 .03 .156 1 or 2 .39
3 4 .87
.50 .12 .18 .03 .156 1 or 2 .39
5 6 1.37
.50 .15 .25 .04 .188 1 or 2 .50
7 8 1.37
.75 .15 .25 .04 .188 1 or 2 .50
9 10 2.00 1.00 .62 .18 .37 .06 .188 1 or 2 .63
11 12 2.00 1.00 .87 .18 .37 .06 .188 1 or 2 .63
13 14 2.75 1.38 .75 .25 .50 .06 .250 1 or 2 .75
15 16 2.75 1.38 1.00 .25 .50 .06 .250 1 or 2 .75
Dimensions are in inches.

Series 3020 Heavy Duty Cane Bolt Latch
To Order
Specify material and finish:
1 Housing anodized alum alloy.
2 Housing
weldable alum alloy, without finish, unassembled.
3 Housing
zinc plated steel.
4 Housing
oil coated steel, unassembled.
 Unless specified otherwise: Spring
stainless steel. 1/2" diameter boltzinc plated steel per  MS-5059, or equivalent
5 Housing, bolt and spring
stainless steel.
Specify R for a right hand assembly . (shown)
Specify L for a left hand assembly . (opposite)
Specify mounting holes:
1 No holes
2 Mounting holes (shown)

Assembly L W D T E* J* K* H1* H2*
R L 3.0 1.35 .85 .187** 1.5 1.218 1.0 .5 .625

* These dimensions can be modified to meet your requirements
** Except stainless, T = .120

As you can see, we are very flexible and will work with you to engineer our latches to meet your specific requirements. Prototypes and small production runs are welcome.

If you need quality latches–in small quantities or large–Knuth Hinge is the right latch manufacturer for you. In fact, if we can’t help you, we promise to help you find a latch manufacturer who can.

Call today and speak with a “live” person, or send us an RFQ and we promise to respond within 24 hours.