Inch Size Pan Head Molybdenum Screws

Inch size molybdenum pan head refractory screws are produced for high temperature vacuum environments. The screw head is large in diameter and short in height, allowing for a low clearance. Please see the charts tab for the refractory properties and temperature conversion.

"Can't find the exact size or shape you need? Please fill out our Custom Size Quote Form or call us at (650) 851-1859. We welcome custom product and fabrication projects.

For full screw dimensions, please select an individual item."

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Item #

Item Name

Screw Size

Screw Length

(D) Basic Screw Diameter (Max)

(A) Head Diameter (Min)

(A) Head Diameter (Max)

(H) Total Head Height (Min)

(H) Total Head Height (Max)

(J) Slot Width (Min)

33038-1360

Moly. Screw Pan Hd. 4-40 x 3/8" lg

4-40

3/8

0.112

0.205

0.219

0.058

0.068

0.031

33038-1370

Moly. Screw Pan Hd. 4-40 x 1/2" lg

4-40

1/2

0.112

0.205

0.219

0.058

0.068

3/8 inch of length is threaded

33038-1380

Moly. Screw Pan Hd. 4-40 x 5/8" lg

4-40

5/8

0.112

0.205

0.219

0.058

0.068

3/8 inch of length is threaded

33038-1420

Moly. Screw Pan Hd. 5-40 x 1/8" lg

5-40

1/8

0.125

0.231

0.245

0.065

0.075

0.035

33038-1430

Moly. Screw Pan Hd. 5-40 x 3/16" lg

5-40

3/16

0.125

0.231

0.245

0.065

0.075

0.035

33038-1440

Moly. Screw Pan Hd. 5-40 x 1/4" lg

5-40

1/4

0.125

0.231

0.245

0.065

0.075

0.035

33038-1450

Moly. Screw Pan Hd. 5-40 x 5/16" lg

5-40

5/16

0.125

0.231

0.245

0.065

0.075

0.035

33038-1460

Moly. Screw Pan Hd. 5-40 x 3/8" lg

5-40

3/8

0.125

0.231

0.245

0.065

0.075

0.035

33038-1470

Moly. Screw Pan Hd. 5-40 x 1/2" lg

5-40

1/2

0.125

0.231

0.245

0.065

0.075

3/8 inch of length is threaded

33038-1480

Moly. Screw Pan Hd. 5-40 x 5/8" lg

5-40

5/8

0.125

0.231

0.245

0.065

0.075

3/8 inch of length is threaded

33038-1520

Moly. Screw Pan Hd. 6-32 x 1/8" lg

6-32

1/8

0.138

0.256

0.270

0.072

0.082

0.039

33038-1530

Moly. Screw Pan Hd. 6-32 x 3/16" lg

6-32

3/16

0.138

0.256

0.270

0.072

0.082

0.039

33038-1540

Moly. Screw Pan Hd. 6-32 x 1/4" lg

6-32

1/4

0.138

0.256

0.270

0.072

0.082

0.039

33038-1550

Moly. Screw Pan Hd. 6-32 x 5/16" lg

6-32

5/16

0.138

0.256

0.270

0.072

0.082

0.039

33038-1560

Moly. Screw Pan Hd. 6-32 x 3/8" lg

6-32

3/8

0.138

0.256

0.270

0.072

0.082

0.039

33038-1570

Moly. Screw Pan Hd. 6-32 x 1/2" lg

6-32

1/2

0.138

0.256

0.270

0.072

0.082

3/8 inch of length is threaded

33038-1580

Moly. Screw Pan Hd. 6-32 x 5/8" lg

6-32

5/8

0.138

0.256

0.270

0.072

0.082

3/8 inch of length is threaded

33038-1590

Moly. Screw Pan Hd. 6-32 x 3/4" lg

6-32

3/4

0.138

0.256

0.270

0.072

0.082

3/8 inch of length is threaded

33038-1600

Moly. Screw Pan Hd. 6-32 x 1" lg

6-32

1

0.138

0.256

0.270

0.072

0.082

3/8 inch of length is threaded

33038-1620

Moly. Screw Pan Hd. 8-32 x 1/8" lg

8-32

1/8

0.164

0.306

0.322

0.085

0.096

0.045

33038-1630

Moly. Screw Pan Hd. 8-32 x 3/16" lg

8-32

3/16

0.164

0.306

0.322

0.085

0.096

0.045

33038-1640

Moly. Screw Pan Hd. 8-32 x 1/4" lg

8-32

1/4

0.164

0.306

0.322

0.085

0.096

0.045

33038-1650

Moly. Screw Pan Hd. 8-32 x 5/16" lg

8-32

5/16

0.164

0.306

0.322

0.085

0.096

0.045

33038-1660

Moly. Screw Pan Hd. 8-32 x 3/8" lg

8-32

3/8

0.164

0.306

0.322

0.085

0.096

0.045

33038-1670

Moly. Screw Pan Hd. 8-32 x 1/2" lg

8-32

1/2

0.164

0.306

0.322

0.085

0.096

3/8 inch of length is threaded