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LOCKBOLTS – 2-Piece Pin and Collar- Standard

Product Description

TITGEMEYER Lockbolts consist of a two-piece pin and collar which, when installed, provide a vibration-resistant and high-speed means to fasten and attach panels, structures and assemblies. They serve as a cost-effective and high-strength alternative to welding, conventional nuts/bolts and rivets. These relatively simple and easy-to-install fasteners have a number of significant characteristics including:

  • no special hole or material preparation requirement
  • high-speed installation
  • predictable shear and tension values
  • vibration resistant (will not come loose like standard nut/bolt)
  • variety of head styles to suit the application
  • self-visual inspection
  • excellent sealing properties
  • superior clamp-up of workpiece built into the system design
Features & Benefits
  • greater holding strength under all kinds of stresses
  • longer service life for the equipment assembled
  • increased safety
  • savings in production costs
  • reliability and virtual elimination of fastener maintenance

Materials and Finishes

Material : Steel
Finish : Zinc, clear passivate and lubrication

Material : Stainless steel
Finish : Self color with lubrication

Material : Aluminum alloy
Finish : Self color with lubrication

Additional Information

  • Fits hole diameters between 5.2mm and 10mm
  • Grip ranges start at 1.6mm and are available in .125 increments through 35mm
  • Clamping forces between 2000 and 27000 N
  • Shear strength between 7900 and 42500 N
  • Pins and collars are ordered separately
  • Brazier and countersunk head styles on Standard pins
  • Regular, flanged and low profile collar types
  • Steel collars of various hardness and other surface finishes are available on request

Applications and Uses

  • automotive
  • industrial
  • commercial vehicle
  • gate/fences and security equipment
  • solar panels and equipment
  • general construction
  • appliances

Please contact an EFC-International representative at 1-800-888-3326 for a list of available parts, types and sizes.

View the Standard Lockbolt Product Matrix in the above images, or scroll below for easy-to-read product charts.

Standard Pin Type Lockbolt - Brazier Head

  Grip Range (sold in .125 increments)
Nominal Pin Ø Steel Stainless Steel Aluminum

3/16 (06)

.063 - 1.313

.063 - 1.313

.063 - 1.313

1/4 (08)

.063 - 2.063

.063 - 1.313

.063 - 1.313

5/16 (10)

.063 - 1.375

.125 - 1.375

.125 - 1.375

3/8 (12)

.125 - 1.375

.125 - 1.375

.125 - 1.375

Standard Pin Type Lockbolt - Counter-Sunk Head

  Grip Range (sold in .125 increments)
Nominal Pin Ø Steel Stainless Steel Aluminum
3/16 (06) .125 - 1.313 n/a .125 - 1.313
1/4 (08) .188 - 1.313 n/a .188 - 1.313
5/16 (10) .125 - 1.375 n/a .125 - 1.375
3/8 (12) .250 - 1.375 n/a .250 - 1.375

Standard Collar Type Lockbolt - Regular Collar

Material 3/16 (06) 1/4 (08) 5/16 (10) 3/8 (12)
Steel x x x x
Stainless Steel x x x x
Aluminum x x x x

Standard Collar Type Lockbolt - Flanged Collar

Material 3/16 (06) 1/4 (08) 5/16 (10) 3/8 (12)
Steel x x x x
Stainless Steel x x x x
Aluminum x x x x

Standard Collar Type Lockbolt - Low-Profile Collar

Material 3/16 (06) 1/4 (08) 5/16 (10) 3/8 (12)
Steel x x x x
Stainless Steel n/a n/a n/a n/a
Aluminum n/a n/a n/a n/a

Regular and Flanged Collar Types are available in Steel, Stainless Steel and Aluminum for all Standard Lockbolt sizes and head styles.

Low Profile Collar Types are available in Steel only for all Standard Lockbolt sizes and head styles.

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EFC Part Number
250001-S

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