Lockbolts and Collars (RivBolts)
RIVBOLTS (C50L® Huck® type lockbolt pins and collars) are available for immediate delivery. Vibration proof C50L® Huck® type fasteners called Rivbolts conform to the very same values as the original C50L® type lockbolt.
Rivbolts are completely compatible with the Huck® C50L® tooling. We supply the Rivbolts to a wide range of industries such as quarry plant manufacturers, vibrating screw manufacturers, railcar builders and repair shops, commercial vehicle builders and a host of varied engineering applications. Our version of the Huck® C50L® lockbolt pin and collar system offers a range of lockbolt type fasteners from 3/8" diameter up to and including 7/8" in grade 8.8 carbon steel. Grade 8.8 fasteners certified to meet or exceed all ASTM A-325 standards.
C50L® IS A REGISTERED TRADEMARK OF ALCOA INC.
The high tensile and shear strength of the installed RIVBOLT, provides a joint with very high resistance to vibratory loosening. This ensures that all fasteners are installed with the same results under all conditions.
Visual inspection of the installed fasteners eliminates the need for expensive equipment and time-consuming inspection methods.
|Round Head||Truss Head||90 Flush Head|
|Head diameter |
|Head height |
|1/2||(16)||.515 - .493||59/64||5/16||59/64||15/64||29/32||1/4|
|5/8||(20)||.642 - .617||1 9/64||25/64||1 9/64||1 9/64||1 5/32||5/16|
|3/4||(24)||.768 - .741||1 3/8||15/32||1 3/8||23/64||1 3/8||3/8|
|7/8||(28)||.895 - .866||1 19/32||35/64||1 19/32||13/32||1 19/32||7/16|
|1||(32)||.022 - .990||1 53/64||39/64||1 53/64||15/32||1 27/32||1/2|
|1 1/8||(36)||1.149 - 1.098||21/16||11/16|
Installed Fastener Values
Carbon Steel Pins Using Standard or Flanged Collars
Minimum values in pounds, of installed fasteners. Round head carbon steel equivalent to ASTM A325 high strength bolts.
Contact us at for more details about any rivet types.