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ACCU-LOK® blind fastener for composite application - low profile protruding head - titanium.
Unit of Measure

Dash Number (Grip)

N/A 1250

Grip Range - Min. Grip

N/A 1.200 in

Grip Range - Max. Grip

N/A 1.250 in

Grip Range

N/A 1.200-1.250 in

A Dia

N/A 0.354 in

D Dia

N/A 0.165 in

E Dia Max

N/A 0.164 in

F Wrench Flats

N/A 0.085 in

G Ref.

N/A 0.017 in

H

N/A 0.060 in

L Ref.

N/A 0.512 in

R Rad

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 0.165-0.168

J Dia Min

N/A 0.250 in

K Max

N/A 0.300 in

Break off Limits <5>

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: 6AL-4V titanium per AMS4928 or AMS4967; heat treated per MIL-H-81200 to 95 ksi shear strength minimum. Maximum hydrogen content 125 ppm.
Screw: A-286 per AMS 5731, AMS 5732 or AMS 5737; heat treated to 175 ksi tensile min.
Sleeve: 304 stainless steel per AMS 5639, heat treat as required for performance.
Insert: Acetal per ASTM D4181.
DryvcapTM: Mild steel (color gray)

Finish

N/A (-) Nut: KAL-GARD ANN-RO #1012 conversion coating or phosphate flouride per AMS2486 may be used at manufacturer´s option.
Sleeve & screw: Passivate per AMS-QQ-P-35, KAL-GARD ANN-RO #1013 conversion coating optional.
Insert: None
DryvcapTM

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, parafin wax, or cetyl alcohol per MIL-L-87132.

Applicable Specification

N/A Procurement specification: FCBF200
Special lube and finish: FCBF202
Part numbering system for ACCU-LOKTM blind fasteners: FCBF204

Material Type

N/A Titanium

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> Alternate head marking: ("VS") and "2010".
4. Composite blind fasteners with selected combinations of the above lubrications and finishes are specially coded and may be substituted for equivelant non-coded parts at manufactures option. Contact fairchild engineering.
<5> An "L" in place of the dash (-) between the diameter dash number and the grip dash number designates modified bresk-off limits of +.053/-.050. "EX: FCBF2110( )-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 a minimum recommended hole. Insertion force shall not exceed 5.0 lbs.