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ACCU-LOK® II blind fastener for composite application 130° flush head A-286 stainless.
Unit of Measure

Dash Number (Grip)

N/A 850

Grip Range - Min. Grip

N/A 0.800 in

Grip Range - Max. Grip

N/A 0.850 in

Grip Range

N/A 0.800-0.850 in

A Dia Ref.

N/A 0.507 in

B Dia Min

N/A 0.463 in

D Dia

N/A 0.260 in

E Dia Max

N/A 0.260 in

F Wrench Flats

N/A 0.135 in

G Ref.

N/A 0.055 in

H Ref.

N/A 0.057 in

L Ref.

N/A 0.700 in

R Rad Max

N/A 0.030 in

S Max

N/A 0.011 in

T Across Hex. Ref

N/A 0.375 in

Minimum available grip length

N/A -150

Recommended Hole Size

N/A 0.260-0.263

J Dia Min

N/A 0.400 in

K Max

N/A 0.450 in

Break off Limits <5>

N/A 0.050-0.053

Tensile Structural Failure (Min)

N/A 2100 lb

Double Shear Min

N/A 7900 lb

Locking Torque Min

N/A 2.500 lb-in0.282 N-m

V Gage Prot.

N/A 0.018 in

W Gage Dia

N/A 0.432 in

Material and Heat Treat

N/A Nut: A-286 per chemical requirements of AMS 5732, AMS 5731, AMS 5734 and AMS 5737. Heat treated as required for performance.
Screw: A-286 per AMS 5731, AMS 5732 or AMS 5737. Heat treated as required for performance.
Sleeve: 304 stainless steel per AMS 5639, heat treated as required for performance.
Insert: Acetal per ASTM D4181
DryvcapTM: Mild steel.

Finish

N/A Nut, Sleeve & Screw: Passivate per AMS-QQ-P-35. KAL-GARD ANN-RO #1013 conversion coating optional.
Insert: None
DryvcapTM: Corrosion resistant coating, color black.

Lubricants

N/A The following lubricants may be applied to any or all components in any combination as required for performance unless otherwise specified: Dry film lube per AS5272, Type I, everlube #812, paraffin wax, or cetyl alcohol per MIL-L-87132.

Applicable Specification

N/A Procurement specification: FCBF200
Special lube and finish: FCBF202

Material Type

N/A A286 CRES

Rated Shear Strength

N/A 75 KSI

Headstyle

N/A 130° Flush

Notes

N/A 2.Locking feature consists of three (3) indentations located 120° apart on the periphery of the nut component and approximately .040" above intersection of the nut nose angle and O.D.
<3>Alternate head marking: "VS" and "O"
4.Composite blind fasteners with selected combinations of the above lubrications and finishes are specially coded and may be substituted for equivalent of non-coded parts at manufacrure´s option. Contact Fairchild Engineering.
<5>An "L" in place of the dash (-) between the diameter dash number and the grip dash number designates midified break-off limits of +.053/-.050. (e.g. FCBF2123( )-6L200).
<6>Distortion shall not prevent insertion of the fastener into a ring gauge of length equal to one diameter and hole diameter equal to minimum recommended hole size. Insertion force shall not exceed 5.0 lbs.