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ACCU-LOK® IIA blind fastener for composite application low profile protruding head titanium (1/64 oversize).
Unit of Measure

Dash Number (Grip)

N/A 400

Grip Range - Min. Grip

N/A 0.350 in

Grip Range - Max. Grip

N/A 0.400 in

Grip Range

N/A 0.350-0.400 in

A Dia

N/A 0.354 in

D Dia

N/A 0.180 in

E Dia Max

N/A 0.180 in

F Wrench Flats

N/A 0.085 in

G Ref.

N/A 0.058 in

H

N/A 0.060 in

L Ref.

N/A 0.625 in

R Rad Max

N/A 0.030 in

T Across Hex. Ref.

N/A 0.375 in

Z Max

N/A 0.030 in

Minimum available grip length

N/A -100

Recommended Hole Size

N/A 0.180-0.183

J Dia Min

N/A 0.250 in

K Max

N/A 0.370 in

Break of Limits <4>

N/A 0.050-0.053

Tensile Structural Failure (Min)

N/A 900 lb

Double Shear Min

N/A 3150 lb

Locking Torque Min

N/A 1.000 lb-in0.113 N-m

Material and Heat Treat

N/A Nut and Corebolt: A-286 stainless steel per chemical requirements of AMS5731 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 & Corebolt: Passivate per AMS-QQ-P-35. KAL-GARD ANN-RO #1013 conversion coating optional.
Insert: None
DryvcapTM: Color brown.

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: FCBF208
Special lube and finish: FCBF202

Material Type

N/A A286 CRES

Rated Shear Strength

N/A 75 KSI

Headstyle

N/A Protruding

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.Composite blind fastener with selected combinations of the above lubrications and finishes are specially coded and may be substituted for equivalent non-coded parts at manufacturer´s option. Contact Fairchild Engineering.
<4> An "L" in place of the dash (-) between the diameter the diameter dash number and the grip dash number designates modified break-off limits of +.053/-.050. "EX: FCBF3015-6L200".
<5> Distortion shall not prevent insertion of the fastener into a ring gauge of length equal to one diameter and hole diameter equal to a minimum recommended hole size. Insertion force shall not exceed 5.0 lbs.