Crawford Products - Riveting and Fastening Systems
 
 
 
 
 

Avdel Breakstem Rivets : Bulbex®


BULBEX® Fastening System

The Bulbex fastening system is a multiple grip all-steel breakstem rivet. Unique crimp design provides wide grip range and smooth bubble formation on tailside. Available in low profile, large flange, and countersunk head styles.

Benefits:

  • Wide Grip Range
    One rivet can be used in multiple material thicknesses, a very unique feature for an all-steel breakstem rivet.
  • Mechanically Locked Stem
    Stem is locked in shell, eliminating the risk of mandrel head vibrating loose while providing a weather resistant joint.
  • Complete Hole Fill
    The bulbing formation of the Stavex® will fill slightly oversized or irregular holes, providing increased strength and vibration resistance.

  • Low Profile Head

  • Large Flange Head
  • Tensile Strenth
  • Materials & Finish
  • Avdel fastening system     
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    APPLICATION INFO & PRICING


    LOW PROFILE HEAD


    Diameter     Aluminum Black Anodized Grip Range M (max)
    5/32" 4.0mm   BF01-0516 BF11-0516 .040-.118 0.630
    Hole Size= .165-.177 (4.20-4.50)       1.00-3.00 16.000
    A max= .165 (4.19)   BF01-0523 BF11-0523 .040-.275 0.840
    B nom= .312 (7.90)       1.00-7.50 21.200
    D max= .060 (1.53)          
    E max= .090 (2.27)          
    3/16" 4.8mm   BF01-0619 BF11-0619 .040-.157 0.720
    Hole Size= .161-.166 (4.09-4.22) 1.00-4.00 18.300
    A max= .155-.160 (3.95-4.06) BF01-0625 BF11-0625 .040-.354 0.920
    B nom= .311 (7.90) 1.00-9.00 23.300
    D max= .061 (1.55) BF01-0630 BF11-0630 .157-.472 1.070
    E max= .090 (2.27) 4.00-12.00 27.100

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    LARGE FLANGED HEAD


    Diameter     Aluminum Black Anodized Grip Range M (max)
    3/16" 4.8mm   BF41-0619 BF41-0619-05 .040-.157 0.720
    Hole Size= .197-.207 (5.00-5.25)     1.00-4.00 18.300
    A max= .197 (5.00)   BF41-0625 BF41-0625-05 .040-.354 0.920
    B nom= .610 (15.50)   1.00-9.00 23.300
    D max= .080 (2.04)          
    E max= .112 (2.83)          

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    Shear & Tensile Strength


    Typical Shear and Tensile Data Bulbex Fasteners in lbs. (Newtons)

    Rivet Diameter BF01/BF11/BF41
    Shear Tensile
    5/32" (4.0mm) 135 (600) 225 (1000)
    3/16" (4.8mm) 175 (780) 240 (1070)


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    MATERIALS & FINISH


    Series Head Style Material Finish
    Body Mandrel Body Mandrel
    BF01 Low Profile Aluminum Aluminum Plain Plain
    BF11 Low Profile Aluminum Aluminum Black Anodized Plain
    BF41 Large Flange Aluminum Aluminum Plain Plain

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