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ACCU-LOK® IIA blind fastener for composite application 100° flush 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 Ref.

0.635 in

B Dia Min

0.577 in

D Dia

0.312 in

E Dia Max

0.311 in

F Wrench Flats

0.152 in

G Ref.

0.073 in

H Ref.

0.136 in

L Ref.

0.912 in

R Rad

0.040 in

S Max

0.026 in

T Across Hex. Ref

0.500 in

Minimum available grip length

-250

Recommended Hole Size

0.312-0.315

J Dia Min

0.475 in

K Max

0.540 in

Break off Limits <5>

0.000-0.103

Tensile Structural Failure (Min)

3600 lb

Double Shear Min

11350 lb

Locking Torque Min

3.500 lb-in0.400 N-m

V Gage Prot.

0.041 in

W Gage Dia

0.539 in

Material and Heat Treat

Nut: 6AL-4V titanium per AMS 4928 or AMS 4967. Heat treated per MIL-H-81200 to 95 ksi shear strength minimum, maximum hydrogen 125 ppm.
Corebolt: A-286 per AMS 5731, AMS 5732 or AMS 5737; Heat treated to 175 ksi tensil min.
Sleeve: 304 stainless steel per AMS 5639; heat treated as required for performance.
Insert: Acetal per ASTM D4181
DryvcapTM: Mild steel.

Finish

(-) Nut: KAL-GARD ANN-RO #1012 conversion coating or phosphate flouride per AMS 2486 may be used at manufacturer´s option.
Sleeve & Corebolt: Passivate per AMS-QQ-P-35. KAL-GARD ANN-RO #1013 conversion coating optional.
Insert: None
Dryvcap

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

Applicable Specification

Procurement specification: FCBF208
Special lube and finish: FCBF202

Material Type

Titanium

Rated Shear Strength

75 KSI

Headstyle

100° Flush