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Unimatic® Blind Rivet General Purpose Bulbed, Mechanically-Lock-Spindle, 100° Flush Head, 5056 Aluminum, Monel & A-286 Cres Rivet Sleeves
Unit of Measure

Dia. Size

 N/A 08

Rivet Size Nom.

 N/A 0.250 in

A Dia. +.003 / -.0013

 N/A 0.250 in

B Dia. ±.0044

 N/A 0.476 in

C Ref.

 N/A 0.095 in

G Min.

 N/A 1.000 in

Shear Alum.8

 N/A 1970 lb

Shear Monel8

 N/A 4000 lb

Shear A-286 Cres8

 N/A 4250 lb

Tensile Alum.8

 N/A 1200 lb

Tensile Monel & A-286 Cres8

 N/A 2600 lb

Hole Limits7

 N/A 0.256 in0.261 in

Grip Dash No.

 N/A 04

Grip Range Min.

 N/A 0.188 in

Grip Range Max.

 N/A 0.250 in

L Ref.

 N/A 0.460 in

F Max.

 N/A 0.762 in

Material Sleeve

 N/A A286 CRES

Material Spindle

 N/A Composition B - 2024 Aluminum per QQ-A-430
Composition EU - A-286 Cres per Chemical RQMT of AMS5737
Composition M - A-286 Cres per Chemical RQMT of AMS5737

Material Lock Ring

 N/A
  1. .001 shank diameter increase permissible within .100 from base of head.
  2. Marking of aluminum rivets may be on spindle at Manufacturer's option.
  3. "A" diameter may be .001 larger than shown for cadmium plated or aluminum coated sleeves.
  4. "B" is the theoretical intersection for countersinking.
  5. Double dimpling is recommended below .078 sheet thickness for .125 dia., below .100 for .156 dia., below .100 for .190 dia., and below .126 for .250 dia. If double dimpling cannot be permitted, use a grip number 01.
  6. "A" diameter may be .001 smaller beyond minimum grip length.
  7. Adjust as required, within these limits, to suit material and application.
  8. Minimum ultimate shear and tensile strengths, in pounds, of installed blind rivet.
  9. For installation in 100° ±1° countersinks for composition "B" material and 100° ± 1°30' for composition "EU" & "M" material.
  10. The rivets covered in this standard are in accordance with NAS specifications 1900 or 1921.
  11. Optional "U" code drive washer facilitates installation with blunt nose tool. Drive washer not part of the installed fastener.
  12. Spindle is colored yellow (location optional) or identified with a depressed "S" on spindle head.

Finish Sleeve

 N/A Composition B - None or Available with Special Coatings
Composition EU - Passivate per AMS-QQ-P-35 or Cadmium Plate per AMS-QQ-P-416, Type II, Class 3 or Aluminum Coat per NAS4006
Composition M - None or Cadmium Plate per AMS-QQ-P-416, Type II, Class 3 or Aluminum Coat per NAS4006

Finish Spindle

 N/A Composition B - Chemically Surface Treat per MIL-C-5541, CL 1A
Composition EU - Passivate Per AMS-QQ-P-35
Composition M - Passivate Per AMS-QQ-P-35

Finish Lock Ring

 N/A Composition B - None
Composition EU - Passivate per AMS-QQ-P-35
Composition M - Passivate per AMS-QQ-P-35 for A-286 & 316 Cres Only

N/A

  1. .001 shank diameter increase permissible within .100 from base of head.
  2. Marking of aluminum rivets may be on spindle at Manufacturer's option.
  3. "A" diameter may be .001 larger than shown for cadmium plated or aluminum coated sleeves.
  4. "B" is the theoretical intersection for countersinking.
  5. Double dimpling is recommended below .078 sheet thickness for .125 dia., below .100 for .156 dia., below .100 for .190 dia., and below .126 for .250 dia. If double dimpling cannot be permitted, use a grip number 01.
  6. "A" diameter may be .001 smaller beyond minimum grip length.
  7. Adjust as required, within these limits, to suit material and application.
  8. Minimum ultimate shear and tensile strengths, in pounds, of installed blind rivet.
  9. For installation in 100° ±1° countersinks for composition "B" material and 100° ± 1°30' for composition "EU" & "M" material.
  10. The rivets covered in this standard are in accordance with NAS specifications 1900 or 1921.
  11. Optional "U" code drive washer facilitates installation with blunt nose tool. Drive washer not part of the installed fastener.
  12. Spindle is colored yellow (location optional) or identified with a depressed "S" on spindle head.