Inch Size Fillister Head Tantalum Screws

Inch size tantalum fillister head refractory screws are produced for high temperature vacuum environments. The screw head is small in diameter and tall in height, allowing for additional torque to be applied. Please see the charts tab for the refractory properties and temperature conversion.

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

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77032-1010

Item Name: Ta/W Screw Fil. 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): 0.083
(A) Head Diameter (Max): 0.096
(H) Total Head Height (Min): 0.045
(H) Total Head Height (Max): 0.054
Material Purity: Tantalum 97½% / Tungsten 2½%
(J) Slot Width (Min): 0.020
(J) Slot Width (Max): 0.031
(T) Slot Depth (Min): 0.014
(T) Slot Depth (Max): 0.024

77032-1020

Item Name: Ta/W Screw Fil. 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): 0.083
(A) Head Diameter (Max): 0.096
(H) Total Head Height (Min): 0.045
(H) Total Head Height (Max): 0.054
Material Purity: Tantalum 97½% / Tungsten 2½%
(J) Slot Width (Min): 0.020
(J) Slot Width (Max): 0.031
(T) Slot Depth (Min): 0.014
(T) Slot Depth (Max): 0.024

77032-1030

Item Name: Ta/W Screw Fil. 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): 0.083
(A) Head Diameter (Max): 0.096
(H) Total Head Height (Min): 0.045
(H) Total Head Height (Max): 0.054
Material Purity: Tantalum 97½% / Tungsten 2½%
(J) Slot Width (Min): 0.020
(J) Slot Width (Max): 0.031
(T) Slot Depth (Min): 0.014
(T) Slot Depth (Max): 0.024

77032-1040

Item Name: Ta/W Screw Fil. 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): 0.083
(A) Head Diameter (Max): 0.096
(H) Total Head Height (Min): 0.045
(H) Total Head Height (Max): 0.054
Material Purity: Tantalum 97½% / Tungsten 2½%
(J) Slot Width (Min): 0.020
(J) Slot Width (Max): 0.031
(T) Slot Depth (Min): 0.014
(T) Slot Depth (Max): 0.024

77032-1050

Item Name: Ta/W Screw Fil. 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): 0.083
(A) Head Diameter (Max): 0.096
(H) Total Head Height (Min): 0.045
(H) Total Head Height (Max): 0.054
Material Purity: Tantalum 97½% / Tungsten 2½%
(J) Slot Width (Min): 0.020
(J) Slot Width (Max): 0.031
(T) Slot Depth (Min): 0.014
(T) Slot Depth (Max): 0.024

77032-1060

Item Name: Ta/W Screw Fil. 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): 0.083
(A) Head Diameter (Max): 0.096
(H) Total Head Height (Min): 0.045
(H) Total Head Height (Max): 0.054
Material Purity: Tantalum 97½% / Tungsten 2½%
(J) Slot Width (Min): 0.020
(J) Slot Width (Max): 0.031
(T) Slot Depth (Min): 0.014
(T) Slot Depth (Max): 0.024

77032-1070

Item Name: Ta/W Screw Fil. 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): 0.083
(A) Head Diameter (Max): 0.096
(H) Total Head Height (Min): 0.045
(H) Total Head Height (Max): 0.054
Material Purity: Tantalum 97½% / Tungsten 2½%
(J) Slot Width (Min): 0.020
(J) Slot Width (Max): 0.031
(T) Slot Depth (Min): 0.014
(T) Slot Depth (Max): 0.024

77032-1110

Item Name: Ta/W Screw Fil. 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): 0.103
(A) Head Diameter (Max): 0.118
(H) Total Head Height (Min): 0.057
(H) Total Head Height (Max): 0.066
Material Purity: Tantalum 97½% / Tungsten 2½%
(J) Slot Width (Min): 0.022
(J) Slot Width (Max): 0.033
(T) Slot Depth (Min): 0.019
(T) Slot Depth (Max): 0.029

77032-1120

Item Name: Ta/W Screw Fil. 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): 0.103
(A) Head Diameter (Max): 0.118
(H) Total Head Height (Min): 0.057
(H) Total Head Height (Max): 0.066
Material Purity: Tantalum 97½% / Tungsten 2½%
(J) Slot Width (Min): 0.022
(J) Slot Width (Max): 0.033
(T) Slot Depth (Min): 0.019
(T) Slot Depth (Max): 0.029

77032-1130

Item Name: Ta/W Screw Fil. 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): 0.103
(A) Head Diameter (Max): 0.118
(H) Total Head Height (Min): 0.057
(H) Total Head Height (Max): 0.066
Material Purity: Tantalum 97½% / Tungsten 2½%
(J) Slot Width (Min): 0.022
(J) Slot Width (Max): 0.033
(T) Slot Depth (Min): 0.019
(T) Slot Depth (Max): 0.029

77032-1140

Item Name: Ta/W Screw Fil. 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): 0.103
(A) Head Diameter (Max): 0.118
(H) Total Head Height (Min): 0.057
(H) Total Head Height (Max): 0.066
Material Purity: Tantalum 97½% / Tungsten 2½%
(J) Slot Width (Min): 0.022
(J) Slot Width (Max): 0.033
(T) Slot Depth (Min): 0.019
(T) Slot Depth (Max): 0.029

77032-1150

Item Name: Ta/W Screw Fil. 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): 0.103
(A) Head Diameter (Max): 0.118
(H) Total Head Height (Min): 0.057
(H) Total Head Height (Max): 0.066
Material Purity: Tantalum 97½% / Tungsten 2½%
(J) Slot Width (Min): 0.022
(J) Slot Width (Max): 0.033
(T) Slot Depth (Min): 0.019
(T) Slot Depth (Max): 0.029

77032-1160

Item Name: Ta/W Screw Fil. 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): 0.103
(A) Head Diameter (Max): 0.118
(H) Total Head Height (Min): 0.057
(H) Total Head Height (Max): 0.066
Material Purity: Tantalum 97½% / Tungsten 2½%
(J) Slot Width (Min): 0.022
(J) Slot Width (Max): 0.033
(T) Slot Depth (Min): 0.019
(T) Slot Depth (Max): 0.029

77032-1170

Item Name: Ta/W Screw Fil. 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): 0.103
(A) Head Diameter (Max): 0.118
(H) Total Head Height (Min): 0.057
(H) Total Head Height (Max): 0.066
Material Purity: Tantalum 97½% / Tungsten 2½%
(J) Slot Width (Min): 0.022
(J) Slot Width (Max): 0.033
(T) Slot Depth (Min): 0.019
(T) Slot Depth (Max): 0.029

77032-1210

Item Name: Ta/W Screw Fil. 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): 0.124
(A) Head Diameter (Max): 0.140
(H) Total Head Height (Min): 0.070
(H) Total Head Height (Max): 0.083
Material Purity: Tantalum 97½% / Tungsten 2½%
(J) Slot Width (Min): 0.023
(J) Slot Width (Max): 0.031
(T) Slot Depth (Min): 0.022
(T) Slot Depth (Max): 0.030

77032-1220

Item Name: Ta/W Screw Fil. 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): 0.124
(A) Head Diameter (Max): 0.140
(H) Total Head Height (Min): 0.070
(H) Total Head Height (Max): 0.083
Material Purity: Tantalum 97½% / Tungsten 2½%
(J) Slot Width (Min): 0.023
(J) Slot Width (Max): 0.031
(T) Slot Depth (Min): 0.022
(T) Slot Depth (Max): 0.030

77032-1230

Item Name: Ta/W Screw Fil. 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): 0.124
(A) Head Diameter (Max): 0.140
(H) Total Head Height (Min): 0.070
(H) Total Head Height (Max): 0.083
Material Purity: Tantalum 97½% / Tungsten 2½%
(J) Slot Width (Min): 0.023
(J) Slot Width (Max): 0.031
(T) Slot Depth (Min): 0.022
(T) Slot Depth (Max): 0.030

77032-1240

Item Name: Ta/W Screw Fil. 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): 0.124
(A) Head Diameter (Max): 0.140
(H) Total Head Height (Min): 0.070
(H) Total Head Height (Max): 0.083
Material Purity: Tantalum 97½% / Tungsten 2½%
(J) Slot Width (Min): 0.023
(J) Slot Width (Max): 0.031
(T) Slot Depth (Min): 0.022
(T) Slot Depth (Max): 0.030

77032-1250

Item Name: Ta/W Screw Fil. 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): 0.124
(A) Head Diameter (Max): 0.140
(H) Total Head Height (Min): 0.070
(H) Total Head Height (Max): 0.083
Material Purity: Tantalum 97½% / Tungsten 2½%
(J) Slot Width (Min): 0.023
(J) Slot Width (Max): 0.031
(T) Slot Depth (Min): 0.022
(T) Slot Depth (Max): 0.030

77032-1260

Item Name: Ta/W Screw Fil. 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): 0.124
(A) Head Diameter (Max): 0.140
(H) Total Head Height (Min): 0.070
(H) Total Head Height (Max): 0.083
Material Purity: Tantalum 97½% / Tungsten 2½%
(J) Slot Width (Min): 0.023
(J) Slot Width (Max): 0.031
(T) Slot Depth (Min): 0.022
(T) Slot Depth (Max): 0.030

77032-1270

Item Name: Ta/W Screw Fil. 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): 0.124
(A) Head Diameter (Max): 0.140
(H) Total Head Height (Min): 0.070
(H) Total Head Height (Max): 0.083
Material Purity: Tantalum 97½% / Tungsten 2½%
(J) Slot Width (Min): 0.023
(J) Slot Width (Max): 0.031
(T) Slot Depth (Min): 0.022
(T) Slot Depth (Max): 0.030

77032-1320

Item Name: Ta/W Screw Fil. 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): 0.166
(A) Head Diameter (Max): 0.183
(H) Total Head Height (Min): 0.094
(H) Total Head Height (Max): 0.107
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): 0.038

77032-1330

Item Name: Ta/W Screw Fil. 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): 0.166
(A) Head Diameter (Max): 0.183
(H) Total Head Height (Min): 0.094
(H) Total Head Height (Max): 0.107
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): 0.038

77032-1340

Item Name: Ta/W Screw Fil. 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): 0.166
(A) Head Diameter (Max): 0.183
(H) Total Head Height (Min): 0.094
(H) Total Head Height (Max): 0.107
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): 0.038

77032-1350

Item Name: Ta/W Screw Fil. 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): 0.166
(A) Head Diameter (Max): 0.183
(H) Total Head Height (Min): 0.094
(H) Total Head Height (Max): 0.107
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): 0.038