MIL-HDBK-5 Data
Joint Performance Data in 2024-T3 Aluminum

LGPL18SC-V MIL-HDBK5 Lap Shear Data

Static joint Strength of LGPL18-V/LGPL2SC-V Titanium Flush head Lockbolt Fasteners in machined countersinks Aluminum Alloy Sheet and Plate. Data taken from
MIL-HDBK5 Tables 8.1.4.2(I)

(Note: Data shown under part number LGPL2SC -V.  LGPL18SC-V is a close tolerance head version of the same product)

Fastener

LGPL18SC-V (a)Pin with 3SCL-C Collars

Sheet Material

Test Results in 2024-T3 Aluminum Sheet & Plate (b)

Dia.

3/16

1/4

5/16

3/8

Sheet Thickness

Ultimate Strength (Pounds)

.050

836

- - -

- - -

- - -

.063

1180

1350

- - -

- - -

.070

1395

1630

1775

- - -

.080

1640

1950

2155

2270

.090

1900 d

2300

2595

2800

.100

2115 d

2650

3035

3335

.125

2340

3530 d

4140

4640

.160

2655

4000

5645 d

6500

.190

2694

4355

6085

8080 d

.250

- - -

4660

6965

9180

.312

- - -

- - -

7290

10270

.375

- - -

- - -

- - -

10490

Shear Strength (c)

2694

4660

7290

10490

 

Yield Strength
(Pounds)

.050

733

- - -

- - -

- - -

.063

901

1220

- - -

- - -

.070

1005

1360

1745

- - -

.080

1125

1515

1930

2270

.090

1250

1685

2140

2635

.100

1380

1855

2355

2895

.125

1640

2280

2895

3530

.160

1910

2795

3640

4430

.190

2140

3100

4230

5200

.250

- - -

3700

4985

6440

.312

- - -

- - -

5760

7375

.375

- - -

- - -

- - -

8325

Fastener Head Height

.048

.063

.070

.081



(1) (a) Fasteners aluminum coated per NAS4006.
(2) (b) Test specimen hole size from .0005" interference to .0005" clearance.
(3) (c) Fastener shear strength based on area computed from shank nominal diameter.
(4) (d) Yield load is less than 2/3 of indicated ultimate strength.
(5) Ultimate values above double line are knife-edge condition and the use of fasteners in this condition is undesirable.
(6) Permanent set at yield load; 4% of nominal diameter.