Inch Size Pan Head Tantalum Screws
Inch size tantalum 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.
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77038-1010
Item Name: Ta/W Screw Pan Hd. 0-80 x 1/16" lg
Screw Size: 0-80
Screw Length: 1/16
(D) Basic Screw Diameter (Max): 0.060
(A) Head Diameter (Min): 0.104
(A) Head Diameter (Max): 0.116
(H) Total Head Height (Min): 0.031
(H) Total Head Height (Max): 0.039
Material Purity: Tantalum 97½% / Tungsten 2½%
(J) Slot Width (Min): 0.016
(J) Slot Width (Max): 0.023
(T) Slot Depth (Min): 0.014
(T) Slot Depth (Max): 0.022
77038-1020
Item Name: Ta/W Screw Pan Hd. 0-80 x 1/8" lg
Screw Size: 0-80
Screw Length: 1/8
(D) Basic Screw Diameter (Max): 0.060
(A) Head Diameter (Min): 0.104
(A) Head Diameter (Max): 0.116
(H) Total Head Height (Min): 0.031
(H) Total Head Height (Max): 0.039
Material Purity: Tantalum 97½% / Tungsten 2½%
(J) Slot Width (Min): 0.016
(J) Slot Width (Max): 0.023
(T) Slot Depth (Min): 0.014
(T) Slot Depth (Max): 0.022
77038-1030
Item Name: Ta/W Screw Pan Hd. 0-80 x 3/16" lg
Screw Size: 0-80
Screw Length: 3/16
(D) Basic Screw Diameter (Max): 0.060
(A) Head Diameter (Min): 0.104
(A) Head Diameter (Max): 0.116
(H) Total Head Height (Min): 0.031
(H) Total Head Height (Max): 0.039
Material Purity: Tantalum 97½% / Tungsten 2½%
(J) Slot Width (Min): 0.016
(J) Slot Width (Max): 0.023
(T) Slot Depth (Min): 0.014
(T) Slot Depth (Max): 0.022
77038-1040
Item Name: Ta/W Screw Pan Hd. 0-80 x 1/4" lg
Screw Size: 0-80
Screw Length: 1/4
(D) Basic Screw Diameter (Max): 0.060
(A) Head Diameter (Min): 0.104
(A) Head Diameter (Max): 0.116
(H) Total Head Height (Min): 0.031
(H) Total Head Height (Max): 0.039
Material Purity: Tantalum 97½% / Tungsten 2½%
(J) Slot Width (Min): 0.016
(J) Slot Width (Max): 0.023
(T) Slot Depth (Min): 0.014
(T) Slot Depth (Max): 0.022
77038-1050
Item Name: Ta/W Screw Pan Hd. 0-80 x 5/16" lg
Screw Size: 0-80
Screw Length: 5/16
(D) Basic Screw Diameter (Max): 0.060
(A) Head Diameter (Min): 0.104
(A) Head Diameter (Max): 0.116
(H) Total Head Height (Min): 0.031
(H) Total Head Height (Max): 0.039
Material Purity: Tantalum 97½% / Tungsten 2½%
(J) Slot Width (Min): 0.016
(J) Slot Width (Max): 0.023
(T) Slot Depth (Min): 0.014
(T) Slot Depth (Max): 0.022
77038-1060
Item Name: Ta/W Screw Pan Hd. 0-80 x 3/8" lg
Screw Size: 0-80
Screw Length: 3/8
(D) Basic Screw Diameter (Max): 0.060
(A) Head Diameter (Min): 0.104
(A) Head Diameter (Max): 0.116
(H) Total Head Height (Min): 0.031
(H) Total Head Height (Max): 0.039
Material Purity: Tantalum 97½% / Tungsten 2½%
(J) Slot Width (Min): 0.016
(J) Slot Width (Max): 0.023
(T) Slot Depth (Min): 0.014
(T) Slot Depth (Max): 0.022
77038-1070
Item Name: Ta/W Screw Pan Hd. 0-80 x 1/2" lg
Screw Size: 0-80
Screw Length: 1/2
Screw Dimension Note: 3/8 inch of length is threaded
(D) Basic Screw Diameter (Max): 0.060
(A) Head Diameter (Min): 0.104
(A) Head Diameter (Max): 0.116
(H) Total Head Height (Min): 0.031
(H) Total Head Height (Max): 0.039
Material Purity: Tantalum 97½% / Tungsten 2½%
(J) Slot Width (Min): 0.016
(J) Slot Width (Max): 0.023
(T) Slot Depth (Min): 0.014
(T) Slot Depth (Max): 0.022
77038-1110
Item Name: Ta/W Screw Pan Hd. 1-72 x 1/16" lg
Screw Size: 1-72
Screw Length: 1/16
(D) Basic Screw Diameter (Max): 0.073
(A) Head Diameter (Min): 0.130
(A) Head Diameter (Max): 0.142
(H) Total Head Height (Min): 0.038
(H) Total Head Height (Max): 0.040
Material Purity: Tantalum 97½% / Tungsten 2½%
(J) Slot Width (Min): 0.019
(J) Slot Width (Max): 0.026
(T) Slot Depth (Min): 0.018
(T) Slot Depth (Max): 0.027
77038-1120
Item Name: Ta/W Screw Pan Hd. 1-72 x 1/8" lg
Screw Size: 1-72
Screw Length: 1/8
(D) Basic Screw Diameter (Max): 0.073
(A) Head Diameter (Min): 0.130
(A) Head Diameter (Max): 0.142
(H) Total Head Height (Min): 0.038
(H) Total Head Height (Max): 0.040
Material Purity: Tantalum 97½% / Tungsten 2½%
(J) Slot Width (Min): 0.019
(J) Slot Width (Max): 0.026
(T) Slot Depth (Min): 0.018
(T) Slot Depth (Max): 0.027
77038-1130
Item Name: Ta/W Screw Pan Hd. 1-72 x 3/16" lg
Screw Size: 1-72
Screw Length: 3/16
(D) Basic Screw Diameter (Max): 0.073
(A) Head Diameter (Min): 0.130
(A) Head Diameter (Max): 0.142
(H) Total Head Height (Min): 0.038
(H) Total Head Height (Max): 0.040
Material Purity: Tantalum 97½% / Tungsten 2½%
(J) Slot Width (Min): 0.019
(J) Slot Width (Max): 0.026
(T) Slot Depth (Min): 0.018
(T) Slot Depth (Max): 0.027
77038-1140
Item Name: Ta/W Screw Pan Hd. 1-72 x 1/4" lg
Screw Size: 1-72
Screw Length: 1/4
(D) Basic Screw Diameter (Max): 0.073
(A) Head Diameter (Min): 0.130
(A) Head Diameter (Max): 0.142
(H) Total Head Height (Min): 0.038
(H) Total Head Height (Max): 0.040
Material Purity: Tantalum 97½% / Tungsten 2½%
(J) Slot Width (Min): 0.019
(J) Slot Width (Max): 0.026
(T) Slot Depth (Min): 0.018
(T) Slot Depth (Max): 0.027
77038-1150
Item Name: Ta/W Screw Pan Hd. 1-72 x 5/16" lg
Screw Size: 1-72
Screw Length: 5/16
(D) Basic Screw Diameter (Max): 0.073
(A) Head Diameter (Min): 0.130
(A) Head Diameter (Max): 0.142
(H) Total Head Height (Min): 0.038
(H) Total Head Height (Max): 0.040
Material Purity: Tantalum 97½% / Tungsten 2½%
(J) Slot Width (Min): 0.019
(J) Slot Width (Max): 0.026
(T) Slot Depth (Min): 0.018
(T) Slot Depth (Max): 0.027
77038-1160
Item Name: Ta/W Screw Pan Hd. 1-72 x 3/8" lg
Screw Size: 1-72
Screw Length: 3/8
(D) Basic Screw Diameter (Max): 0.073
(A) Head Diameter (Min): 0.130
(A) Head Diameter (Max): 0.142
(H) Total Head Height (Min): 0.038
(H) Total Head Height (Max): 0.040
Material Purity: Tantalum 97½% / Tungsten 2½%
(J) Slot Width (Min): 0.019
(J) Slot Width (Max): 0.026
(T) Slot Depth (Min): 0.018
(T) Slot Depth (Max): 0.027
77038-1170
Item Name: Ta/W Screw Pan Hd. 1-72 x 1/2" lg
Screw Size: 1-72
Screw Length: 1/2
Screw Dimension Note: 3/8 inch of length is threaded
(D) Basic Screw Diameter (Max): 0.073
(A) Head Diameter (Min): 0.130
(A) Head Diameter (Max): 0.142
(H) Total Head Height (Min): 0.038
(H) Total Head Height (Max): 0.040
Material Purity: Tantalum 97½% / Tungsten 2½%
(J) Slot Width (Min): 0.019
(J) Slot Width (Max): 0.026
(T) Slot Depth (Min): 0.018
(T) Slot Depth (Max): 0.027
77038-1210
Item Name: Ta/W Screw Pan Hd. 2-56 x 1/16" lg
Screw Size: 2-56
Screw Length: 1/16
(D) Basic Screw Diameter (Max): 0.086
(A) Head Diameter (Min): 0.155
(A) Head Diameter (Max): 0.167
(H) Total Head Height (Min): 0.045
(H) Total Head Height (Max): 0.053
Material Purity: Tantalum 97½% / Tungsten 2½%
(J) Slot Width (Min): 0.023
(J) Slot Width (Max): 0.031
(T) Slot Depth (Min): 0.023
(T) Slot Depth (Max): 0.033
77038-1220
Item Name: Ta/W Screw Pan Hd. 2-56 x 1/8" lg
Screw Size: 2-56
Screw Length: 1/8
(D) Basic Screw Diameter (Max): 0.086
(A) Head Diameter (Min): 0.155
(A) Head Diameter (Max): 0.167
(H) Total Head Height (Min): 0.045
(H) Total Head Height (Max): 0.053
Material Purity: Tantalum 97½% / Tungsten 2½%
(J) Slot Width (Min): 0.023
(J) Slot Width (Max): 0.031
(T) Slot Depth (Min): 0.023
(T) Slot Depth (Max): 0.033
77038-1230
Item Name: Ta/W Screw Pan Hd. 2-56 x 3/16" lg
Screw Size: 2-56
Screw Length: 3/16
(D) Basic Screw Diameter (Max): 0.086
(A) Head Diameter (Min): 0.155
(A) Head Diameter (Max): 0.167
(H) Total Head Height (Min): 0.045
(H) Total Head Height (Max): 0.053
Material Purity: Tantalum 97½% / Tungsten 2½%
(J) Slot Width (Min): 0.023
(J) Slot Width (Max): 0.031
(T) Slot Depth (Min): 0.023
(T) Slot Depth (Max): 0.033
77038-1240
Item Name: Ta/W Screw Pan Hd. 2-56 x 1/4" lg
Screw Size: 2-56
Screw Length: 1/4
(D) Basic Screw Diameter (Max): 0.086
(A) Head Diameter (Min): 0.155
(A) Head Diameter (Max): 0.167
(H) Total Head Height (Min): 0.045
(H) Total Head Height (Max): 0.053
Material Purity: Tantalum 97½% / Tungsten 2½%
(J) Slot Width (Min): 0.023
(J) Slot Width (Max): 0.031
(T) Slot Depth (Min): 0.023
(T) Slot Depth (Max): 0.033
77038-1250
Item Name: Ta/W Screw Pan Hd. 2-56 x 5/16" lg
Screw Size: 2-56
Screw Length: 5/16
(D) Basic Screw Diameter (Max): 0.086
(A) Head Diameter (Min): 0.155
(A) Head Diameter (Max): 0.167
(H) Total Head Height (Min): 0.045
(H) Total Head Height (Max): 0.053
Material Purity: Tantalum 97½% / Tungsten 2½%
(J) Slot Width (Min): 0.023
(J) Slot Width (Max): 0.031
(T) Slot Depth (Min): 0.023
(T) Slot Depth (Max): 0.033
77038-1260
Item Name: Ta/W Screw Pan Hd. 2-56 x 3/8" lg
Screw Size: 2-56
Screw Length: 3/8
(D) Basic Screw Diameter (Max): 0.086
(A) Head Diameter (Min): 0.155
(A) Head Diameter (Max): 0.167
(H) Total Head Height (Min): 0.045
(H) Total Head Height (Max): 0.053
Material Purity: Tantalum 97½% / Tungsten 2½%
(J) Slot Width (Min): 0.023
(J) Slot Width (Max): 0.031
(T) Slot Depth (Min): 0.023
(T) Slot Depth (Max): 0.033
77038-1270
Item Name: Ta/W Screw Pan Hd. 2-56 x 1/2" lg
Screw Size: 2-56
Screw Length: 1/2
Screw Dimension Note: 3/8 inch of length is threaded
(D) Basic Screw Diameter (Max): 0.086
(A) Head Diameter (Min): 0.155
(A) Head Diameter (Max): 0.167
(H) Total Head Height (Min): 0.045
(H) Total Head Height (Max): 0.053
Material Purity: Tantalum 97½% / Tungsten 2½%
(J) Slot Width (Min): 0.023
(J) Slot Width (Max): 0.031
(T) Slot Depth (Min): 0.023
(T) Slot Depth (Max): 0.033
77038-1320
Item Name: Ta/W Screw Pan Hd. 4-40 x 1/8" lg
Screw Size: 4-40
Screw Length: 1/8
(D) Basic Screw Diameter (Max): 0.112
(A) Head Diameter (Min): 0.205
(A) Head Diameter (Max): 0.219
(H) Total Head Height (Min): 0.058
(H) Total Head Height (Max): 0.068
Material Purity: Tantalum 97½% / Tungsten 2½%
(J) Slot Width (Min): 0.031
(J) Slot Width (Max): 0.039
(T) Slot Depth (Min): 0.030
(T) Slot Depth (Max): 0.041
77038-1330
Item Name: Ta/W Screw Pan Hd. 4-40 x 3/16" lg
Screw Size: 4-40
Screw Length: 3/16
(D) Basic Screw Diameter (Max): 0.112
(A) Head Diameter (Min): 0.205
(A) Head Diameter (Max): 0.219
(H) Total Head Height (Min): 0.058
(H) Total Head Height (Max): 0.068
Material Purity: Tantalum 97½% / Tungsten 2½%
(J) Slot Width (Min): 0.031
(J) Slot Width (Max): 0.039
(T) Slot Depth (Min): 0.030
(T) Slot Depth (Max): 0.041
77038-1340
Item Name: Ta/W Screw Pan Hd. 4-40 x 1/4" lg
Screw Size: 4-40
Screw Length: 1/4
(D) Basic Screw Diameter (Max): 0.112
(A) Head Diameter (Min): 0.205
(A) Head Diameter (Max): 0.219
(H) Total Head Height (Min): 0.058
(H) Total Head Height (Max): 0.068
Material Purity: Tantalum 97½% / Tungsten 2½%
(J) Slot Width (Min): 0.031
(J) Slot Width (Max): 0.039
(T) Slot Depth (Min): 0.030
(T) Slot Depth (Max): 0.041
77038-1350
Item Name: Ta/W Screw Pan Hd. 4-40 x 5/16" lg
Screw Size: 4-40
Screw Length: 5/16
(D) Basic Screw Diameter (Max): 0.112
(A) Head Diameter (Min): 0.205
(A) Head Diameter (Max): 0.219
(H) Total Head Height (Min): 0.058
(H) Total Head Height (Max): 0.068
Material Purity: Tantalum 97½% / Tungsten 2½%
(J) Slot Width (Min): 0.031
(J) Slot Width (Max): 0.039
(T) Slot Depth (Min): 0.030
(T) Slot Depth (Max): 0.041