MIL-HDBK-5 Data
Joint Performance Data in 7075-T6 Aluminum

LGPL18SC-V MIL-HDBK5 Lap Shear Data
Static joint Strength of LGPL18-V Titanium Flush head Lockbolt Fasteners in machined countersinks Aluminum Alloy Sheet and Plate. Data taken from MIL-HDBK5 Tables and 8.1.4.2(j).
 
(Note: Data shown under 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 7075-T6 Aluminum Sheet & Plate (b)

Dia.

3/16

1/4

5/16

3/8

Sheet Thickness

Ultimate Strength (Pounds)

.050

1040

- - -

- - -

- - -

.063

1370

1710

- - -

- - -

.070

1575

1980

2345

- - -

.080

1805

2280

2715

3105

.090

2060

2615

3130

3620

.100

2315

2950

3550

4130

.125

2590

3790

4605

5375

.160

2694

4430

6070

7150

.190

- - -

4660

6750

8660

.250

- - -

- - -

7290

10154

.312

- - -

- - -

- - -

10490

.375

- - -

- - -

- - -

- - -

Shear Sgth (c)

2694

4660

7290

10490

 

Yield Strength (Pounds)

.050

948

- - -

- - -

- - -

.063

1160

1585

- - -

- - -

.070

1290

1755

2265

 

.080

1435

1945

2500

3090

.090

1600

2160

2765

4515

.100

1760

2375

3030

3740

.125

2095

2910

3705

4535

.160

2395

3585

4640

5670

.190

- - -

3900

5440

6635

.250

- - -

- - -

6270

8230

.312

- - -

- - -

- - -

9255

.375

- - -

- - -

- - -

- - -

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.