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

Dash Number (Grip)

1650

Grip Range - Min. Grip

1.600 in

Grip Range - Max. Grip

1.650 in

Grip Range

1.600-1.650 in

A Dia

0.541 in

D Dia

0.260 in

E Dia Max

0.260 in

F Wrench Flats

0.135 in

G Ref.

0.055 in

H

0.085 in

L Ref.

0.700 in

R Rad

0.030 in

T Across Hex. Ref.

0.375 in

Z Max

0.040 in

Minimum available grip length

-150

Recommended Hole Size

0.260-0.263

J Dia Min

0.400 in

K Max

0.450 in

Break off Limits <5>

0.000-0.103

Tensile Structural Failure (Min)

2100 lb

Double Shear Min

7900 lb

Locking Torque Min

2.500 lb-in0.282 N-m

Material and Heat Treat

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

(-) 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

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

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

Material Type

Titanium

Rated Shear Strength

75 KSI

Headstyle

Protruding