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Shop Online > Fasteners > Screws > Shoulder > Male-female
Accurate Screw Machine

16640SS

Unit System
Specs (in standard)
Label Value
A 0.375 in
B 0.5 in
Brand Accurate Screw
C 0.374 in
D 0.5 in
Drive Type Male Female
End Type Standard
Finish None
Length E 1.375 in
Length L 0.25 in
Material Steel
Max L 2 in
Model Number 16640
Screw Head Type Shoulder
Shape Square
Thread Size 5/16-18
Specs (in metric)
Label Value
A 9.53 mm
B 12.7 mm
Brand Accurate Screw
C 9.5 mm
D 12.7 mm
Drive Type Male Female
End Type Standard
Finish None
Length E 34.93 mm
Length L 6.35 mm
Material Steel
Max L 50.8 mm
Model Number 16640
Screw Head Type Shoulder
Shape Square
Thread Size 5/16-18

Product Options

Finish
None
06 - Cadmium Plate - Clear Chromate - Type I, Class 2
06a - Cadmium Plate - Color Chromate - Type II, Class 2
07 - Cadmium Plate - Commercial - Type I, Classes 1, 2, 3
08 - Cadmium Plate - Color Chromate - Type II, Class 3
11 - Black Oxide - Class 4
11a - Black Oxide - Class 1
16 - Gold Flash
17 - Gold Flash over Nickel Flash
18 - Gold Plate - Type II, Class 2, Grade C
24 - Gold Flash over Silver Flash
26 - Chromium Plate - Bright - Type I, Class 1
27 - Chromium Plate - Satin - Type II, Class 1
28 - Chromium Plate - Engineering - Class 2
34 - Black Phosphate
37 - Black Finish
40 - Electro Polish